GrubStomper29's OpenGL Sandbox | Graphics Programming | Page 4

gilded shell Dec 10, 2024, 9:14 PM

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thats fine, I can work on getting the sphere bounds for now

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these are always cool to look at

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probably has something to do with padding

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I HATE PADDING

kind sparrow Dec 10, 2024, 9:29 PM

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You can derive frustum culling yourself

gilded shell Dec 10, 2024, 9:30 PM

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kind sparrow You can derive frustum culling yourself

wdym

night shoal Dec 10, 2024, 9:30 PM

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its a simple math problem

gilded shell Dec 10, 2024, 9:31 PM

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im good

kind sparrow Dec 10, 2024, 9:31 PM

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It's a good bite-sized math problem for a budding graphics programmer

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And there are many valid ways to solve it

gilded shell Dec 10, 2024, 9:32 PM

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i suppose

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regardless

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i think I have found my problem

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   uint transformIndex;
   int materialIndex;

   uint indexCount;
   uint firstIndex;
   int vertexOffset;

   vec3 boundingCenter;
   float boundingRadius;```

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I think this is a bad memory layout

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    uint transformIndex;
    int materialIndex;

    uint indexCount;
    uint firstIndex;
    int vertexOffset;

    int padding0;
    int padding1;

    vec3 boundingCenter;
    float boundingRadius;

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I added some padding and it looks a little less munted

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but still munted nonetheless, so I imagine theres more layout issues

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this is an array of structs, let me check struct/array alignment

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or because I'm doing my math wrong 💀

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i shouldnt need padding1, only padding0

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"If the member is a structure, the base alignment of the structure is N, where
N is the largest base alignment value of any of its members, and rounded
up to the base alignment of a vec4. The individual members of this substructure are then assigned offsets by applying this set of rules recursively,
where the base offset of the first member of the sub-structure is equal to the
aligned offset of the structure. The structure may have padding at the end;
the base offset of the member following the sub-structure is rounded up to
the next multiple of the base alignment of the structure."

junior sparrow Dec 10, 2024, 9:52 PM

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scalar layout my beloved

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or you could reorder the variables

gilded shell Dec 10, 2024, 9:52 PM

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well id like to understand first

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I believe the padding for an individual struct is fine, but it falls apart in an array of structs

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this is what I have so far

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{
    uint transformIndex;
    int materialIndex;

    uint indexCount;
    uint firstIndex;
    int vertexOffset;

    int padding0;

    vec3 boundingCenter;
    float boundingRadius;
};```

junior sparrow Dec 10, 2024, 9:54 PM

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this should work

{
    vec3 boundingCenter;
    float boundingRadius;

    uint transformIndex;
    int materialIndex;

    uint indexCount;
    uint firstIndex;
    int vertexOffset;
};```

gilded shell Dec 10, 2024, 9:55 PM

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but why

junior sparrow Dec 10, 2024, 9:55 PM

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just because

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you could put padding between boundingCenter and boundingRadius it would work

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try it and see

gilded shell Dec 10, 2024, 9:56 PM

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Haven't you heard the saying, "give a man a fish and he'll eat for a day. Teach a man to fish and he'll eat for life?"

junior sparrow Dec 10, 2024, 9:56 PM

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last time I touched alignment is 3 years

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basically you want order types by their size so vec4 is first and vec3s is pain you need to put int/float in between so it can satisfy the vec4 alignment

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and vec2s are fine

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and scalars too

gilded shell Dec 10, 2024, 9:58 PM

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I see

junior sparrow Dec 10, 2024, 10:00 PM

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and matricies are fun too

gilded shell Dec 10, 2024, 10:00 PM

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heres a tree of clocks

junior sparrow Dec 10, 2024, 10:00 PM

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💀

gilded shell Dec 10, 2024, 10:00 PM

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it did in fact not work

junior sparrow Dec 10, 2024, 10:02 PM

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so switching to vulkan for scalar layout when?

gilded shell Dec 10, 2024, 10:04 PM

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after the suicide

west trail Dec 10, 2024, 10:05 PM

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junior sparrow this should work ```struct Cluster { vec3 boundingCenter; float bounding...

I think you are missing one more uint to complete it

gilded shell Dec 10, 2024, 10:05 PM

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this is std430 btw

west trail Dec 10, 2024, 10:06 PM

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Do vec4 + two uvec4 and stop having problems

junior sparrow Dec 10, 2024, 10:06 PM

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wait

junior sparrow Dec 10, 2024, 10:06 PM

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west trail I think you are missing one more uint to complete it

you are maybe correct

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god I love scalar layout

gilded shell Dec 10, 2024, 10:07 PM

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west trail Do vec4 + two uvec4 and stop having problems

pretty sure, yeah

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but not vec3s!

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on second thought, the array part is fine, something else must be wrong

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@kind sparrow how cooked am I

west trail Dec 10, 2024, 10:13 PM

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gilded shell but not vec3s!

Vec3 + float is okay I guess

gilded shell Dec 10, 2024, 10:13 PM

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I would imagine that

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plus the additional 5 scalars

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something still isnt adding up

west trail Dec 10, 2024, 10:13 PM

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Dumb people gamble on money, smart people gamble on memory layout

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Shuffle until it works

junior sparrow Dec 10, 2024, 10:14 PM

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west trail Vec3 + float is okay I guess

thats 100% fine

gilded shell Dec 10, 2024, 10:14 PM

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NOT something I want to see

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#

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weird

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with/without the extra components shows the same data in nsight

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however with the data in, I get this result

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I wonder what's wrong

west trail Dec 10, 2024, 10:33 PM

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Looks like fucked up indices idk

gilded shell Dec 10, 2024, 10:33 PM

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obviously but I need to figure out why

junior sparrow Dec 10, 2024, 10:34 PM

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this spaghetti could be anything

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previously it worked?

gilded shell Dec 10, 2024, 10:34 PM

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yeah, the only real difference now is the size of the cluster struct

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could C++ have some implicit padding we havent thought of?

junior sparrow Dec 10, 2024, 10:35 PM

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wouldnt say so

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issue is going to be 100% shaders

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do you have same struct def in c++ and glsl

gilded shell Dec 10, 2024, 10:36 PM

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yes

junior sparrow Dec 10, 2024, 10:36 PM

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🫡

gilded shell Dec 10, 2024, 10:38 PM

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junior sparrow issue is going to be 100% shaders

I dont understand how; NSight says the data is fine there

junior sparrow Dec 10, 2024, 10:39 PM

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then some indexing stuff

gilded shell Dec 10, 2024, 10:42 PM

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I AM giving up in the face of problems

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this is cooked so Ill figure it out later

night shoal Dec 10, 2024, 11:01 PM

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try a simpler mesh

kind sparrow Dec 10, 2024, 11:20 PM

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Alignment is easy you just look at the buffer in renderdoc and if RD misinterprets the data then so will GL

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Oh I see it looks ok

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Idk then

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Is this Vulkan or GL

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std430 everything is aligned to a vec4 basically

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I wouldn't trust vec3s at all

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I would put the scalar into the 4th component of a vec4

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And then pad the whole struct to a multiple of 16B

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I'm pretty sure GL will implicitly pad a vec3 to a vec4 so you can't rely on fitting a scalar into that hole

gilded shell Dec 11, 2024, 12:49 AM

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kind sparrow Is this Vulkan or GL

GL

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ill have to try that

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maybe nsight buffer readings are misleading

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if representing a sphere with a vec4, it makes most sense for the radius to be the last component, correct?

kind sparrow Dec 11, 2024, 12:51 AM

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Yeah

gilded shell Dec 12, 2024, 6:45 PM

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kind sparrow Dec 12, 2024, 9:39 PM

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Lmao

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What inspired this character

gilded shell Dec 12, 2024, 9:57 PM

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I have no idea

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my pal moochoie12 drew it

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its clearly not GrubStomper29, so ig it would be his son GrubStomper30

gilded shell Dec 15, 2024, 4:56 AM

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per vertex lighting is so cool

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maybe my next project should be a ps2 styled game

gilded shell Dec 16, 2024, 2:05 PM

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gilded shell maybe my next project should be a ps2 styled game

about home defense from an HOA invasion

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its all coming together now

fervent lantern Dec 16, 2024, 3:07 PM

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HOA Invasion Stomper

gilded shell Dec 17, 2024, 3:00 AM

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gilded shell about home defense from an HOA invasion

would that be bad on a resume lol

kind sparrow Dec 17, 2024, 3:34 AM

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Call it "untitled game project (2025)"

gilded shell Dec 17, 2024, 11:38 AM

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“2week box”

gilded shell Dec 21, 2024, 1:55 PM

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NSight buffer view matches the C++ side

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and the struct is a multiple of 16b

gilded shell Dec 21, 2024, 2:28 PM

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The bug is fixed, I was only updating the cluster struct in the compute shader and not the other shaders that use it

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I should really look into glsl header file equivelants

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anyways the bug is fixed

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now I have to figure out frustum culling, and demon has unfortunately inspired me to do it on my own

night shoal Dec 21, 2024, 3:10 PM

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"stb include"

gilded shell Dec 22, 2024, 7:08 PM

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I've been using string_cast for quite some time and am just now getting this error?

night shoal Dec 22, 2024, 7:23 PM

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target_compile_definitions(HowToScript
    PRIVATE GLM_FORCE_CXX2A
    PRIVATE GLM_FORCE_RADIANS
    PRIVATE GLM_FORCE_DEPTH_ZERO_TO_ONE
    PRIVATE GLM_FORCE_RIGHT_HANDED
    PRIVATE GLM_FORCE_SILENT_WARNINGS
    PRIVATE GLM_FORCE_SWIZZLE
    PRIVATE GLM_FORCE_XYZW_ONLY
    PRIVATE GLM_ENABLE_EXPERIMENTAL
)
``` 😛

gilded shell Dec 23, 2024, 3:02 PM

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I wonder why I'm able to map and write to buffers without GL_DYNAMIC_STORAGE_BIT

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gilded shell Dec 23, 2024, 3:43 PM

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Slightly working frustum culling (viewFrustum is paused here)

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It does have issues

west trail Dec 23, 2024, 4:01 PM

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gilded shell I wonder why I'm able to map and write to buffers without GL_DYNAMIC_STORAGE_BIT

updates via pointer are considered non direct I guess

gilded shell Dec 23, 2024, 4:09 PM

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I see

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I wonder what in the world could be causing this bug

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anyways heres a video of it

gilded shell Dec 24, 2024, 3:16 AM

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gilded shell anyways heres a video of it

any ideas guys

gilded shell Dec 24, 2024, 4:27 AM

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todo: test first cluster skip

west trail Dec 24, 2024, 7:42 AM

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gilded shell any ideas guys

Maybe fucked up hitboxes and your frustum thinks that you are not looking at bistro

gilded shell Dec 24, 2024, 2:30 PM

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west trail Maybe fucked up hitboxes and your frustum thinks that you are not looking at bis...

maybe but im not using a hierarchy

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im just testing for each meshlet for now

gilded shell Dec 24, 2024, 3:09 PM

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The batcher has no problem omitting meshlets, so its not an offset or indexing problem

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it must be a calculation error

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All the plane distances become positive when everything disappears

gilded shell Dec 26, 2024, 3:31 PM

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I still haven't found the issue

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all my calculations align with logl

gilded shell Dec 26, 2024, 3:32 PM

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gilded shell All the plane distances become positive when everything disappears

I still ahven't found out why this occurs

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it only seems to happen to the top plane

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SOS

gilded shell Dec 29, 2024, 1:06 AM

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the program now functions. I must never touch it again

gilded shell Dec 29, 2024, 4:35 PM

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there must be a better way

west trail Dec 29, 2024, 5:08 PM

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Abstract away like bindssbo to make it shorter

kind sparrow Dec 29, 2024, 8:14 PM

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gilded shell there must be a better way

No that looks positively based

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Good work

night shoal Dec 29, 2024, 8:14 PM

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shame that bindless buffers is not vendor agnostic

kind sparrow Dec 29, 2024, 8:15 PM

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#general message

gilded shell Dec 29, 2024, 8:55 PM

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kind sparrow No that looks positively based

but its so… unordered

kind sparrow Dec 29, 2024, 8:59 PM

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gilded shell but its so… unordered

Looks extremely ordered to me

gilded shell Dec 29, 2024, 10:12 PM

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i see

gilded shell Dec 30, 2024, 2:32 PM

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Alright its time for occlusion culling

junior sparrow Dec 30, 2024, 2:36 PM

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https://tenor.com/view/evil-dog-evil-dog-smile-dog-smile-evil-emoji-smiling-imp-gif-26586962

Tenor

gilded shell Dec 30, 2024, 2:38 PM

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lemme write out a little plan

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FIRST BATCH PASS
Using the visibility bitmask, batch meshlets that were visible last frame
generate depth pyramid from these
SECOND BATCH PASS
if meshlet was visible last frame, update its visibility and return
otherwise, update visibility and batch if visible

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bevy used a different method for knowing if a meshlet was visible last frame, because a bitmask "does not play well with LODs." I'm not doing LODs

spring kelp Dec 30, 2024, 2:43 PM

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gilded shell bevy used a different method for knowing if a meshlet was visible last frame, b...

It used a bitmask initially, before I added LODs.

junior sparrow Dec 30, 2024, 2:43 PM

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I just keep the list of visible stuff

gilded shell Dec 30, 2024, 2:43 PM

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spring kelp It used a bitmask initially, before I added LODs.

I think there was also a memory concern

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but I imagine without LOD trees, I should be fine

spring kelp Dec 30, 2024, 2:44 PM

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Yeah, besides it not working with LODs, it used a decent amount of memory. It's not a ton though, 1 bit/meshlet is fine really.

gilded shell Dec 30, 2024, 2:44 PM

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Yeah

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and I believe someone we know wrote a nice hiz generator?

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I forget who

junior sparrow Dec 30, 2024, 2:45 PM

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lpotrick

gilded shell Dec 30, 2024, 2:45 PM

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richer or potrick maybe

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yeah

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are hiz tests only possible with AABBs?

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i wouldn't mind using spheres, but iirc projecting spheres sucks

junior sparrow Dec 30, 2024, 2:47 PM

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You can make bounding spheres into AABB

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I have both

gilded shell Dec 30, 2024, 2:48 PM

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junior sparrow You can make bounding spheres into AABB

hmm

spring kelp Dec 30, 2024, 2:48 PM

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gilded shell i wouldn't mind using spheres, but iirc projecting spheres sucks

Spheres are easier than AABBs iirc, but you can do either

gilded shell Dec 30, 2024, 2:48 PM

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i see

spring kelp Dec 30, 2024, 2:48 PM

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https://zeux.io/2023/01/12/approximate-projected-bounds/

Approximate projected bounds

When working with various forms of culling, it can be useful to project the object bounds to screen space. This is necessary to implement various forms of occlusion culling when using a depth pyramid, or to be able to reject objects or clusters that don’t contribute to any pixels. The same operation can also be used for level of detail selection...

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Just keep in mind for occlusion culling you want to convert from UV to pixel coordinates

gilded shell Dec 30, 2024, 2:50 PM

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I hate coordinate systems

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so I imagine that bitmask buffer is gonna be like ceil(meshletCount / 8.0f)

junior sparrow Dec 30, 2024, 2:52 PM

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32 if you got for integer

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idk if you use u8 in shaders

gilded shell Dec 30, 2024, 2:53 PM

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well I'm talking about the size in bytes

junior sparrow Dec 30, 2024, 2:53 PM

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👍

gilded shell Dec 31, 2024, 3:07 PM

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gilded shell Alright its time for occlusion culling

nvm squid game 2 is out

gilded shell Jan 2, 2025, 1:09 AM

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gilded shell Jan 2, 2025, 8:24 PM

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I seek advice, oh wise ones

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version control

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purpose of multiple repo branches?

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consistency of pushes?

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strategies?

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feel free to info dump

kind sparrow Jan 2, 2025, 8:26 PM

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I'm shit at VCing assets

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I don't have a good answer there

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I make branches just to organize work into named segments, even if you're developing them in serial

west trail Jan 2, 2025, 8:27 PM

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gilded shell purpose of multiple repo branches?

"Oh i saw this really niche but cool feature.Idk if i want it in my project, but i might reconsider in the future.Lets implement it and check if it fits"

kind sparrow Jan 2, 2025, 8:27 PM

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I push relatively infrequently (once I have a feature working, or at least compiling), maybe once a day or sometimes less often

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Typically you want a commit to be a working version of the program, although that's a flexible standard

gilded shell Jan 2, 2025, 8:28 PM

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i push about once every other month

kind sparrow Jan 2, 2025, 8:28 PM

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Lmao

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Don't do that

gilded shell Jan 2, 2025, 8:28 PM

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yeah

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ig i should have a beta branch for those near-daily pushes?

kind sparrow Jan 2, 2025, 8:28 PM

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I always work on a branch

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And then I just merge to master when that feature is done before making my next branch

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The biggest benefit of VC is being unafraid to rip shit up and rewrite it

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If you ever find yourself worrying that you might break something and have trouble fixing it you should commit

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That's how I can just tear up 1000 loc and rewrite 3/4 of it without fear

gilded shell Jan 2, 2025, 8:31 PM

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that’s smart

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i also want everything to compile on other peoples systems and need a good way to test this

kind sparrow Jan 2, 2025, 8:32 PM

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Buy a beater laptop on craigslist and put ubuntu on it

west trail Jan 2, 2025, 8:32 PM

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dual boot

gilded shell Jan 2, 2025, 8:33 PM

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im probably sticking with visual c++ for builds, so it must be windows

kind sparrow Jan 2, 2025, 8:33 PM

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Nah you want different HW

gilded shell Jan 2, 2025, 8:33 PM

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well…

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I have a pi zero

kind sparrow Jan 2, 2025, 8:33 PM

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I was replying to lumberjack, if you're targeting windows only I wouldn't worry too much

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But it would still be worthwhile to have a machine with a different GPU vendor

gilded shell Jan 2, 2025, 8:34 PM

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gilded shell I have a pi zero

joking though; it struggles to run even the os

west trail Jan 2, 2025, 8:34 PM

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gilded shell I have a pi zero

Dont think it will run opengl, imho its easier to have a vm

gilded shell Jan 2, 2025, 8:34 PM

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i might duel boot windows on a separate hard drive

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even a crappy laptop is gonna be expensive if im just using it to test builds

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i can probably crowdsource my testing

night shoal Jan 2, 2025, 8:36 PM

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i would suggest a dedicated separate hard drive yeah, be it hdd or ssd or nvme doesnt matter

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and then you use the boot menu of your bios to select the drive to boot from

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that way you keep both drives separated and neither windows nor lunix will install any shit on the other drive

kind sparrow Jan 2, 2025, 8:36 PM

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gilded shell i can probably crowdsource my testing

Yes you can

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Many here have done so with great success

night shoal Jan 2, 2025, 8:37 PM

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that too 🙂

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and im also willing to help out

kind sparrow Jan 2, 2025, 8:37 PM

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Same

gilded shell Jan 2, 2025, 8:37 PM

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that would be awesome

night shoal Jan 2, 2025, 8:38 PM

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if you make it cmake compliant we can figure out other platforms too as well

gilded shell Jan 2, 2025, 8:40 PM

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perhaps

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I didnt know Defend Your Home from the HOA would have such a wide playerbase : )

kind sparrow Jan 2, 2025, 8:42 PM

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Ofc

junior sparrow Jan 2, 2025, 8:59 PM

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gilded shell feel free to info dump

I push every change that I do. In middle of the change I do git stash. Also I am planning to have branch from which I will cherry pick commits to master.

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night shoal Jan 2, 2025, 9:04 PM

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as long as you commit things you will be fine

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keep them small and commit often if possible

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that makes cherry picking or cleaning up even merge conflicts easier to deal with by a lot

spring kelp Jan 2, 2025, 9:08 PM

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gilded shell I seek advice, oh wise ones

I use one branch per feature/thing I'm working on, forking off of whatever the latest bevy main commit is. I push either once at the end of my programming session when prototyping stuff, or once per set of changes for more incremental stuff where I have stuff I want to save before moving onto the next part of the change.

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But no hard rules, I often branch off of my branches and make random commits as I feel like it

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My only real advice is don't use a single branch to develop every change, especially if you're working with multiple people and not just yourself

gilded shell Jan 2, 2025, 9:43 PM

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biggest problem i forsee is finding people for facial scans

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maybe i can get hi res ones online and modify them a bit for the game artstyle

night shoal Jan 2, 2025, 10:09 PM

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https://www.digitalrealitylab.com/sample-model/

Digital Reality Lab

digitalspring

SAMPLES

Try some of our finest free 3D head model scans. Digital Reality Lab provides top-notch sample shapes and textures with extreme details.

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i also wouldnt mind a game in that hand drawn pencil style like that piece of art from the other day

gilded shell Jan 3, 2025, 2:58 AM

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night shoal i also wouldnt mind a game in that hand drawn pencil style like that piece of ar...

unfortunately i already have a vision for this game

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but that is something to consider for future projects

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Stomping Grubs Simulator (SGS) will be my magnum opus and thus I cannot begin work on it until I master my craft

gilded shell Jan 3, 2025, 2:41 PM

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I might write my own depth buffer downsampler

gilded shell Jan 3, 2025, 2:51 PM

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junior sparrow idk if you use u8 in shaders

You were right; I forgot glsl doesnt have 8 bit types

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ill have to round it up to the nearest multiple of 32

night shoal Jan 3, 2025, 3:36 PM

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perhaps https://github.com/KhronosGroup/GLSL/blob/main/extensions/ext/GL_EXT_shader_16bit_storage.txt

gilded shell Jan 3, 2025, 3:38 PM

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im good

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so my bitmask is an array of 32 bit uints

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uint n = clusterId - i * 32; // get index within the 32 bit data
uint bits = 1 << n; // get bitmask for this cluster
if (!(visibilityBitmask[i] & bits)) // do bitwise AND against this cluster's bitmask 
{
    // cluster is not visible
}```
This is the code I have for testing the visibility

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this is really the first code ive written alone for bitwise operations, so I am a little unsure if it works

junior sparrow Jan 3, 2025, 4:15 PM

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it should work I think

gilded shell Jan 3, 2025, 6:02 PM

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i also think

gilded shell Jan 3, 2025, 9:38 PM

#

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Failed a shoulder roll one too many times

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I think ill buy a rubber saa replica to keep the weight up but withstand more impacts

night shoal Jan 3, 2025, 9:56 PM

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https://tenor.com/view/cowboy-quick-draw-fast-gun-gif-27244009

Tenor

gilded shell Jan 3, 2025, 9:57 PM

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https://tenor.com/view/revolver-ocelot-gif-26257771

Tenor

night shoal Jan 3, 2025, 9:58 PM

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i was picturing you participating at those quick draw competitions with that old revolver thingy

gilded shell Jan 4, 2025, 2:52 AM

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gilded shell https://tenor.com/view/revolver-ocelot-gif-26257771

nah im purely interested in cosplaying as this guy for holloween

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https://tenor.com/view/viktorbg-gif-25283495

Tenor

night shoal Jan 4, 2025, 2:54 AM

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Donald McDualWield

gilded shell Jan 4, 2025, 2:55 AM

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Hes from the metal gear games

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you should play them

night shoal Jan 4, 2025, 2:56 AM

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i tried mg1 once, for 10mins or so, i think mg is utterly boring

gilded shell Jan 4, 2025, 2:57 AM

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uhh

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mg or mgs

night shoal Jan 4, 2025, 2:57 AM

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all of them

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mgs

gilded shell Jan 4, 2025, 2:57 AM

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oh

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quite lame of you deccer

night shoal Jan 4, 2025, 2:58 AM

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yeah, i am quite lame

gilded shell Jan 4, 2025, 2:58 AM

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you gotta have the patience to sneak around

night shoal Jan 4, 2025, 2:58 AM

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i did in The Thief 🙂 and Hitman, that was enough

gilded shell Jan 4, 2025, 3:00 AM

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mgs has great plot though

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and awesome 90s action music

night shoal Jan 4, 2025, 3:05 AM

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yeah the music is neat

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idk im weird

gilded shell Jan 4, 2025, 3:10 AM

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give it another shot

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the first hour of any metal gear game is admittedly hard to choke down

night shoal Jan 4, 2025, 3:17 AM

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that jungle scene annoyed me

gilded shell Jan 4, 2025, 3:24 AM

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it sounds like you were playing the third one?

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that one probably has the longest intro

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start with mgs1

night shoal Jan 4, 2025, 4:08 AM

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nah

gilded shell Jan 4, 2025, 4:50 AM

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: (

night shoal Jan 4, 2025, 9:44 AM

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the top downyness and switching to weird camera angles is not mine

gilded shell Jan 5, 2025, 3:58 AM

#

@night shoal maybe youll like Cave Story

#

free 2004 Indie game by Diasuke Amaya who also made the game engine, music creation software, and even a rudimentary scripting language for the cutscenes

#

https://tenor.com/view/cave-story-indie-games-indie-game-mimiga-toroko-gif-13645685885173818871

Tenor

gilded shell Jan 6, 2025, 4:18 PM

#

The bitmask batching works

#

I can do cool stuff like clearing it to 01010101 to omit every other cluster

#

#

right now im focused on just getting culling working, but later down the line im probably going to have to do some sync work

#

or at the very least giving batches some of their own buffers so im not dispatching, clearing, dispatching, clearing, etc.

#

in other news its snowing really hard here but burger king is NOT closing so ill still be going to work tonight

#

guarauntee you we'll make less than 20 sales tonight

gilded shell Jan 7, 2025, 3:16 PM

#

😬

#

sync error?

#

time to spam glFinish

#

that worked

junior sparrow Jan 7, 2025, 5:42 PM

#

Vulkán when

gilded shell Jan 7, 2025, 6:33 PM

#

2 years ago

gilded shell Jan 8, 2025, 2:21 PM

#

hi-z time 😦

#

@spring kelp you seem to be online right now. Would it be correct to assume I need the full mip chain for occlusion culling?

spring kelp Jan 8, 2025, 2:35 PM

#

I mean you don't have to, but there's no reason not to

#

Just make sure to clamp your calculated mip level to the actual range of mips your hiz texture has

gilded shell Jan 8, 2025, 2:36 PM

#

spring kelp Just make sure to clamp your calculated mip level to the actual range of mips yo...

Can you elaborate on this please?

#

also, what aproach do you use for the power of two problem?

spring kelp Jan 8, 2025, 2:38 PM

#

gilded shell Can you elaborate on this please?

If your mip map has 10 mips, make sure whatever mip level your culling shader calculates to use is clamped to [0, 10)

#

so that -1 or 11 become 0 and 10

spring kelp Jan 8, 2025, 2:39 PM

#

gilded shell also, what aproach do you use for the power of two problem?

I don't, it's broken atm. But the plan is to copy granite's HiZ shader, which is a modified SPD https://github.com/Themaister/Granite/blob/master/assets/shaders/post/hiz.comp

gilded shell Jan 8, 2025, 2:39 PM

#

I took a quick glance at AMD's SPD and it only support's vk/dx12

#

are SPDs using newer API features or do they just skip GL because no one uses it anymore?

spring kelp Jan 8, 2025, 2:42 PM

#

Uhh does GL have subgroup support?

gilded shell Jan 8, 2025, 2:43 PM

#

Not sure

#

Now that I think about it, I have no idea how SPDs work

#

it may benefit me to create a working prototype with one pass per mip

#

But I'm scared that any ^2 solution will make sampling the mip chain super complex

gilded shell Jan 8, 2025, 3:04 PM

#

https://www.rastergrid.com/blog/2010/10/hierarchical-z-map-based-occlusion-culling/

RasterGrid

Daniel Rákos

Hierarchical-Z map based occlusion culling

#

this article seems nice

gilded shell Jan 8, 2025, 4:24 PM

#

My app is now properly synced. I'd like to take a moment to talk about how weird fences are on OpenGL

#

you can't reuse them, yet still are responsible for handling their deletion

#

glClientWaitSync has a timeout parameter detailing how long the client can wait before moving on

#

glWaitSync also has this parameter, but it must be set to GL_TIMEOUT_IGNORED

kind sparrow Jan 8, 2025, 4:49 PM

#

Idk it kinda makes sense

#

The fence is just an event in the GPU timeline, it could be waited on at any time without being signaled so it can't be automatically deleted

#

The API needs to keep track of some pool of flags to check so having them be explicitly managed isn't too surprising

gilded shell Jan 8, 2025, 9:17 PM

#

I suppose

gilded shell Jan 9, 2025, 4:20 AM

#

A sailor’s worst enemy is himself when the siren sings

gilded shell Jan 9, 2025, 3:08 PM

#

depth texture should probably be clamp to edge

gilded shell Jan 9, 2025, 3:38 PM

#

idk why what is essentially mipmap generation is such a hard problem for me

gilded shell Jan 9, 2025, 4:00 PM

#

heres a plan:

Create texture with appropriate storage for mip levels
Copy depth buffer to base mip level

For each mip level:
Bind appropriate mip level for writing
Dispatch compute to write (using imageStore) maximum depth values of last level to current level; handle edges and corner for NPOT last level

gilded shell Jan 10, 2025, 5:25 AM

#

gilded shell Jan 10, 2025, 4:12 PM

#

gilded shell heres a plan: ``` Create texture with appropriate storage for mip levels Copy de...

Complication—you can't bind a texture for both FBO output and shader sampling simultaneously; I need a workaround that lets me read the last level to write to the current one

#

My first thought is to use a separate FBO output texture and copy its contents into each respective level, but that sounds very slow

#

or I could use imageStore I was not aware this function existed

gilded shell Jan 11, 2025, 3:26 PM

#

I have read the word "depth" too much

gilded shell Jan 11, 2025, 4:01 PM

#

The down sampler compiles and runs for a single mip level

#

I still need to test its functionality before going down the full mip chain

gilded shell Jan 13, 2025, 12:43 AM

#

I wonder if its worth it to try and slam in multiple shader invocations per workgroup for something like this

gilded shell Jan 13, 2025, 2:00 AM

#

only time will tell

gilded shell Jan 14, 2025, 9:46 PM

#

#

hiZ gen is wrong

#

as you can see from this depth buffer visualization

#

imageStore is doing nothing

gilded shell Jan 14, 2025, 10:11 PM

#

perhaps because I was using GL_DEPTH_COMPONENT32F as my image format? I wonder why that would stop it from working

gilded shell Jan 14, 2025, 10:26 PM

#

Now it's working just fine

#

this hi Z is so hot

#

@junior sparrow

junior sparrow Jan 14, 2025, 10:43 PM

#

https://tenor.com/view/noice-nice-click-gif-8843762

Tenor

#

now the culling code fun

gilded shell Jan 14, 2025, 10:56 PM

#

most of it is in place

#

I just need to perform the actual AABB test

#

saving for later

gilded shell Jan 16, 2025, 3:23 AM

#

Numbers 12:3 “Now Moses was a very humble man , more humble than anyone else on the face of the earth.”

#

#

This is really funny lol

kind sparrow Jan 16, 2025, 5:37 AM

#

gilded shell Jan 16, 2025, 11:55 PM

#

This looks useful https://www.gamedev.net/blog/1025/entry-2249535-hierarchical-z-buffer-occlusion-culling-updated-07152011/

gilded shell Jan 17, 2025, 12:11 AM

#

As does this

gilded shell Jan 17, 2025, 12:45 AM

#

and here https://vkguide.dev/docs/gpudriven/compute_culling/

Vulkan Guide

Compute based Culling

Practical guide to vulkan graphics programming

#

bc apparently vkguide has occlusion culling

gilded shell Jan 17, 2025, 2:23 AM

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https://github.com/vblanco20-1/vulkan-guide/blob/engine/shaders/indirect_cull.comp

gilded shell Jan 18, 2025, 2:29 AM

#

There's no textureGatherLod() in GLSL 😞

gilded shell Jan 18, 2025, 2:53 AM

#

anyways the occlusion culling is completely failing

#

it's my sphere projection that's failing frog_think

gilded shell Jan 18, 2025, 2:27 PM

#

gilded shell it's my sphere projection that's failing <:frog_think:1112825121380511745>

Every single bounding sphere fails !(C.z < r + znear) and I can't figure out why

#

maybe my view space is -Z forward somehow?

#

but that doesnt make sense

gilded shell Jan 18, 2025, 2:59 PM

#

or does it

#

as far as i can tell, viewspace is -Z forward and glm::perspective flips the Z coordinate

gilded shell Jan 18, 2025, 3:22 PM

#

alright for my sanity I need to linearize my hzb

#

i think

#

im stuck in coordinate system hell

#

@junior sparrow a few questions: do you linearize your hzb?

#

do you have any tips for debugging occlusion culling?

junior sparrow Jan 18, 2025, 3:30 PM

#

I dont linearize hzb or depth

#

I am using infinite reverse depth

#

and about debugging I can from gpu create AABB for debugging

gilded shell Jan 18, 2025, 3:31 PM

#

junior sparrow and about debugging I can from gpu create AABB for debugging

wdym

junior sparrow Jan 18, 2025, 3:34 PM

#

I can visualize the meshlets bounds which are not getting culled, etc..

gilded shell Jan 18, 2025, 3:34 PM

#

i see

#

i think i just need to write my own hzb sampling code

#

im pretty my viewspace is -Z forward, +X right, +Y up

#

the hzb is in texel space with (0,0) being the bottom left

#

depth is non-linearized

#

my plan is: get the projected AABB bounds of the bounding sphere use it to figure out where I need to sample on the hzb get the nonlinearized min depth of the sphere compare that against the hzb depths

gilded shell Jan 18, 2025, 5:05 PM

#

occlusion culling is ALMOST functioning!

#

gilded shell Jan 18, 2025, 5:21 PM

#

i imagine the flickering issue is related to texelFetching the hzb without any bounds checks

#

that or my texel coord calculation sucks

gilded shell Jan 20, 2025, 4:06 PM

#

The dough is rising

#

I am baking my masterpiece today

gilded shell Jan 20, 2025, 4:57 PM

#

gilded shell i imagine the flickering issue is related to texelFetching the hzb without any b...

anyways this is confirmed

#

vec4 depths;
depths.x = texelFetch(hiZ, coords, level).x;
depths.y = texelFetchOffset(hiZ, coords, level, ivec2(1, 0)).x;
depths.z = texelFetchOffset(hiZ, coords, level, ivec2(1, 1)).x;
depths.w = texelFetchOffset(hiZ, coords, level, ivec2(0, 1)).x;

#

this is what I'm doing

#

i wonder if implementing bounds checks here could cause performance issues

#

ill worry about that later

#

bounds checking did resolve most issues

#

still some odd flickering issues

#

I wonder what the issue is this time

junior sparrow Jan 20, 2025, 5:16 PM

#

I have some issues too

#

I am not happy about it

junior sparrow Jan 20, 2025, 5:17 PM

#

gilded shell i wonder if implementing bounds checks here could cause performance issues

🤨

#

I assume that hardware does some bound checks

gilded shell Jan 20, 2025, 5:17 PM

#

not for texelFetch

#

I'm not using texture() because I don't think ogl has that min sampler extension and if it does I was too lazy to check

#

so here I just clamp it to the edge

junior sparrow Jan 20, 2025, 5:18 PM

#

huh intersting

gilded shell Jan 20, 2025, 5:19 PM

#

Do you add any sort of padding to your bounding geometry to resolve floating point errors?

#

its really bad when I fly under the map

junior sparrow Jan 20, 2025, 5:25 PM

#

I do lpotrick trick where hiz is in image which is power of 2

#

which type of perspective matrix do you use?

#

normal one or some infinite reverse

gilded shell Jan 20, 2025, 5:25 PM

#

normal

#

float sphereDepth = (1.0f / -(sphere.z + sphere.w) - 1.0f / zNear) / (1.0f / 10000.0f - 1.0f / zNear);

junior sparrow Jan 20, 2025, 5:26 PM

#

I recommend you switching

gilded shell Jan 20, 2025, 5:26 PM

#

why

junior sparrow Jan 20, 2025, 5:26 PM

#

better precission

#

https://developer.nvidia.com/blog/visualizing-depth-precision/

NVIDIA Technical Blog

Nathan Reed

Visualizing Depth Precision | NVIDIA Technical Blog

Discussion and diagrams to help you understand how nonlinear depth mapping works in different situations, intuitively and visually.

gilded shell Jan 20, 2025, 5:37 PM

#

junior sparrow normal one or some infinite reverse

does glm have a projection function for infinite reverse?

junior sparrow Jan 20, 2025, 5:37 PM

#

I think so but I have my own

gilded shell Jan 20, 2025, 5:40 PM

#

there's infinite

#

would negative near plane mess with my handedness?

junior sparrow Jan 20, 2025, 5:54 PM

#

https://tenor.com/view/elmo-sesame-street-shrug-idk-i-have-no-idea-gif-17243185

Tenor

night shoal Jan 20, 2025, 6:29 PM

#

GLM_FORCE_DEPTH_ZERO_TO_ONE

#

and glm::infiniteXXX

#

or without the define and glm::infiniteXXX_ZO

gilded shell Jan 20, 2025, 10:16 PM

#

todo: remove far plane from frustum culling

#

???

gilded shell Jan 21, 2025, 2:29 PM

#


vec4 depths;
depths.x = sampleHiZ(coords, level);
depths.y = sampleHiZ(coords + ivec2(1, 0), level);
depths.z = sampleHiZ(coords + ivec2(1, 1), level);
depths.w = sampleHiZ(coords + ivec2(0, 1), level);
float depth = min(min(depths.x, depths.y), min(depths.z, depths.w));```

#

I wonder if my texel reading is bad again

#

i just take the bottom left of the sphere's projected AABB, and read a square of texels there

gilded shell Jan 21, 2025, 2:48 PM

#

#

@junior sparrow it's fully functional

#

vec2 coords = ivec2(((aabb.xy + aabb.zw) * 0.5f) * vec2(textureSize(hiZ, level)));

vec4 depths;
depths.x = sampleHiZ(ivec2(coords), level);
depths.y = sampleHiZ(ivec2(coords + vec2(1.0f, 0.0f)), level);
depths.z = sampleHiZ(ivec2(coords + vec2(1.0f, 1.0f)), level);
depths.w = sampleHiZ(ivec2(coords + vec2(0.0f, 1.0f)), level);```
I changed my coord calc to this, I believe it's similar to what vkguide does

#

I also ceil my mip level calc

#

bistro now mostly renders at 2-3ms but peaks at 5 with busier frames

#

I think I can shave this down given the unoptimized state of my code

#

all of my compute shaders have a 1x1x1 local size

junior sparrow Jan 21, 2025, 3:07 PM

#

💀

junior sparrow Jan 21, 2025, 3:07 PM

#

gilded shell <@223771039648186378> it's fully functional

Nice

gilded shell Jan 21, 2025, 3:10 PM

#

I wonder why I need to ceil the level calc

#

regardless, now that it works i must never lay a finger on it again

junior sparrow Jan 21, 2025, 3:18 PM

#

gilded shell I wonder why I need to ceil the level calc

Because you round up taking the worst case scenario

#

That's my understanding

gilded shell Jan 21, 2025, 3:18 PM

#

probably

gilded shell Jan 21, 2025, 3:18 PM

#

gilded shell bistro now mostly renders at 2-3ms but peaks at 5 with busier frames

corrected to bistro. I should probably try sponza too

gilded shell Jan 21, 2025, 6:38 PM

#

Silly me! I'm running perf tests in debug!

junior sparrow Jan 21, 2025, 6:39 PM

#

that shouldnt change that much

gilded shell Jan 21, 2025, 6:40 PM

#

gilded shell all of my compute shaders have a 1x1x1 local size

changing the hi-z gen local size from 1x1x1 to 32x1x1 brought hi-z gen from ~0.8ms down to ~0.2ms

junior sparrow Jan 21, 2025, 6:41 PM

#

what gpu are you running?

gilded shell Jan 21, 2025, 6:43 PM

#

3050

#

https://tenor.com/view/jesse-pinkman-aaron-paul-screaming-need-for-speed-gif-20658918

Tenor

#

junior sparrow Jan 21, 2025, 6:44 PM

#

I dont see anything wrong

gilded shell Jan 21, 2025, 6:45 PM

#

junior sparrow Jan 21, 2025, 6:45 PM

#

https://tenor.com/view/computer-science-scravers-gif-24687936

Tenor

gilded shell Jan 21, 2025, 6:54 PM

#

simondev if you can hear this please save us

#

https://tenor.com/view/praying-gif-3348052254980566268

Tenor

gilded shell Jan 22, 2025, 5:05 PM

#

@kind sparrow you were right; i shouldve tried occlusion culling on cpu first

#

debugging the compute shader is 30% guesswork

gilded shell Jan 22, 2025, 5:23 PM

#

and as you might’ve seen, the bugs are driving me insane

junior sparrow Jan 22, 2025, 5:33 PM

#

you dont have hot reloading of shaders?

gilded shell Jan 22, 2025, 5:34 PM

#

i do but its still not as good as break points and reading data memory

junior sparrow Jan 22, 2025, 5:35 PM

#

in vulkan land we have printf

#

I have debug draw from gpu as well

kind sparrow Jan 22, 2025, 6:47 PM

#

gilded shell and as you might’ve seen, the bugs are driving me insane

Same

#

I am trying to figure out the ideal methodology

#

I've been stalling on my foliage stuff which is similar all month

gilded shell Jan 22, 2025, 6:53 PM

#

yeah

#

i feel as if im so close

#

i just need a solid hi z sampling method

#

i highly doubt this is floating point error and im 99% sure my sphere projection and hzb gen is sound

#

i just realized i call it hiZ in my code and not hzb lol

kind sparrow Jan 22, 2025, 7:00 PM

#

The reason mine is so impossible is because the intermediates are all stochastic

#

Every frame the data is a different order in the buffers

gilded shell Jan 22, 2025, 7:07 PM

#

yikes

#

have you read the bevy blog?

kind sparrow Jan 22, 2025, 7:08 PM

#

No

#

What about it

gilded shell Jan 22, 2025, 7:16 PM

#

kind sparrow I've been stalling on my foliage stuff which is similar all month

if by similar you’re saying it’s related to culling, that blog post can help

kind sparrow Jan 22, 2025, 7:21 PM

#

It's not culling but it's also a complex compute algorithm

#

It's like a 5-stage pipeline full of atomic buffer filling so there are a lot of potential points of failure

junior sparrow Jan 22, 2025, 7:23 PM

#

nervous

gilded shell Jan 22, 2025, 8:15 PM

#

good luck lol

kind sparrow Jan 22, 2025, 8:17 PM

#

If I come up with any good methodology for debugging I'll let you know

#

Mine probably requires a different approach to yours though

#

Isn't yours just basically building a mip chain but with maximal instead of mean values

#

Mine struggle is looking for off-by-one errors in hundreds of megabytes worth of partially filled allocations

gilded shell Jan 22, 2025, 8:38 PM

#

kind sparrow Isn't yours just basically building a mip chain but with maximal instead of mean...

thats the working part

#

what im struggling with is actually testing against this

kind sparrow Jan 22, 2025, 8:47 PM

#

Ah

gilded shell Jan 23, 2025, 5:50 PM

#

my cs teacher just dropped the biggest project on us with one day to complete it

#

these projects usually take 3-4 days to complete

junior sparrow Jan 23, 2025, 5:51 PM

#

what is it? bleakekw

gilded shell Jan 23, 2025, 5:51 PM

#

some cybersecurity forensic stuff

junior sparrow Jan 23, 2025, 5:51 PM

#

https://tenor.com/view/computer-science-scravers-gif-24687936

Tenor

gilded shell Jan 23, 2025, 5:53 PM

#

worst part is no one else has uploaded a guide online 😭 (aside from paid sites)

#

and this project counts as the final, being worth 20% of the grade

west trail Jan 23, 2025, 5:54 PM

#

What's it about?

gilded shell Jan 23, 2025, 5:58 PM

#

nvm i think shes canceling this

west trail Jan 23, 2025, 5:59 PM

#

Save it

#

She will probably give it to you later with minor changes, you will have more time to prepare

gilded shell Jan 23, 2025, 6:02 PM

#

nah the semester practically ends today

gilded shell Jan 23, 2025, 10:38 PM

#

i wonder why its this specific meshlet having trouble with the culling

gilded shell Jan 24, 2025, 1:10 AM

#

and this one

gilded shell Jan 24, 2025, 1:28 AM

#

okay

#

@junior sparrow

#

i THINK its fixed

#

but the fix makes absolutely no sense to me

#

I just +1 my mip level calc

#

int level = int(ceil(log2(max(width, height)))) + 1;

gilded shell Jan 24, 2025, 7:56 PM

#

ig it doesnt matter if it works 100%; as long as it does a good amount of culling and has no visible artifacts then its good enough for this project

#

once i get past optimizing the unoptimized, I will finally get to do what ive been meaning to do for a few years at this point: physics based lighting

#

and shadows and gi and hdr and such and so forth

#

cascade shadows + some brdf + indirect light maps + retinal based post = grubstomper photorealism

#

we’ll make it

gilded shell Jan 25, 2025, 4:40 PM

#

Interesting observation

#

local size (64, 1, 1) occluder batching compute shader is about 2-3 times faster than (4, 4, 4)

#

and there seems to be little gain using (64, 1, 1) compared to (1, 1, 1)

#

this might be related to branching

#

depth downsampling showed significant improvements when local size was increased, and its branching is uniform across all invocations

#

it could also be all the atomic writes

gilded shell Jan 26, 2025, 12:35 AM

#

#

i believe this screenshot is from rednote, an app that i do not use

gilded shell Jan 31, 2025, 11:55 AM

#

gotta save this here too

gilded shell Feb 1, 2025, 2:19 PM

#

gilded shell i wonder why its this specific meshlet having trouble with the culling

changed my lighting parameters and its a lot nicer looking now

night shoal Feb 1, 2025, 2:21 PM

#

it looks fresher indeed

gilded shell Feb 1, 2025, 2:25 PM

#

the old lambertian diffuse I used stretched the dot product over the sphere and NOT the hemisphere

#

the idea was for more lighting depth, but it's not physically accurate so it had to go

gilded shell Feb 1, 2025, 3:10 PM

#

I think for shadow mapping I'll need that "multiview" thing mentioned in the nanite talk

#

rather than batch for shadows then batch for the camera, I should batch for both simultaneously

#

This doesn't seem trivial for shadow cascades since I'll have like 5 different views to batch for

#

perhaps i perform the batching without culling first and figure it out later

gilded shell Feb 3, 2025, 2:11 AM

#

todo: commit changes

gilded shell Feb 4, 2025, 3:14 AM

#

developments probably gonna slow down since i made a minecraft world

gilded shell Feb 7, 2025, 2:03 AM

#

todo: zorp my flongle

plain mantle Feb 7, 2025, 2:42 AM

#

Any progress on the guitar learning?

gilded shell Feb 7, 2025, 2:43 AM

#

havent picked it up yet

#

i do have free time, but it must be budgeted and that’s a little low on the list

plain mantle Feb 7, 2025, 2:45 AM

#

Just pick it up and learn 3 chords. You can do alot with that

gilded shell Feb 7, 2025, 2:58 AM

#

a lot of garbage

#

i have my eyes set on the songs i want to learn

#

i just need to get around to it

#

which is the hardest part froge_sad

plain mantle Feb 7, 2025, 3:16 AM

#

gilded shell i have my eyes set on the songs i want to learn

Those dave matthews songs are pretty challenging ngl

gilded shell Feb 7, 2025, 3:16 AM

#

so ive heard

#

it would be kinda like what i did with drums

#

i got a lot better by just picking a really hard song (#41 from under the table and dreaming) and learning that on drums

#

granted, it took about 2 years to do

plain mantle Feb 7, 2025, 3:21 AM

#

I mean you might wanna learn some basics before jumping right in to the hard shit but it's up to you

gilded shell Feb 7, 2025, 3:22 AM

#

probably

plain mantle Feb 7, 2025, 3:22 AM

#

Did you ever learn any Rush songs when you were doing drums

gilded shell Feb 7, 2025, 3:22 AM

#

nah i dont like rush

plain mantle Feb 7, 2025, 3:22 AM

#

That's my favorite band KEKW

#

Also they're from my city

gilded shell Feb 7, 2025, 3:23 AM

#

filthy closed hand drumming

#

idk if its unhealthy, but im really only interested in the drumming of Carter Beauford

plain mantle Feb 7, 2025, 3:25 AM

#

Probably unhealthy to try to mimic one person only yeah

#

Up to you though

gilded shell Feb 7, 2025, 3:25 AM

#

i just havent found any other drummer i like

#

somethings just different about him

plain mantle Feb 7, 2025, 3:26 AM

#

Ever listen to phish?

gilded shell Feb 7, 2025, 3:26 AM

#

i dont think so

#

i heard Steve Lillywhite worked with them

plain mantle Feb 7, 2025, 3:27 AM

#

https://youtu.be/nlFRU_FdPh0?si=EkYV7OeN53Afwwba

YouTube

Aaron Katz

Phish + Dave Matthews Mexico 2/24/2022 Full Guest Set

Phish with Dave Matthews (guesting)
February 24, 2022
Riviera Maya, Mexico

Full Guest Set
0:00 So Damn Lucky (Dave Matthews Original)
5:44 The Maker (DANIEL LANOIS Cover, Often played by Dave Matthews)
10:40 Tweezer Reprise

This channel is not monetized.

This is a free video for fans of Dave Matthews and/or Phish. If you enjoy the music ple...

▶ Play video

gilded shell Feb 7, 2025, 3:30 AM

#

i also need to give the police a listen

#

but part of the reason i like dmb so much is because of how much they solo

#

some of my favorite songs are them going nuts for 15-30 minutes

plain mantle Feb 7, 2025, 3:31 AM

#

gilded shell but part of the reason i like dmb so much is because of how much they solo

Oh man you would love phish

gilded shell Feb 7, 2025, 3:31 AM

#

plain mantle Oh man you would love phish

ill check them out

plain mantle Feb 7, 2025, 3:31 AM

#

https://youtu.be/blciN4nMGrM?si=Wgu95pWUOWvg9W2z

YouTube

Phish - Topic

You Enjoy Myself (Live at Madison Square Garden, New Year's Eve 1995)

Provided to YouTube by Rhino

You Enjoy Myself (Live at Madison Square Garden, New Year's Eve 1995) · Phish

Live at Madison Square Garden New Year's Eve 1995

℗ 2005 Phish Associates

Drums: Jon Fishman
Producer: Jon Fishman
Backing Vocals: Jon Fishman
Bass Guitar: Mike Gordon
Producer: Mike Gordon
Backing Vocals: Mike Gordon
Keyboards: Page...

▶ Play video

#

25 minutes of jam

gilded shell Feb 7, 2025, 3:32 AM

#

the greatest bangers are always dropped in msg

#

take a listen to this

#

https://youtube.com/watch?v=3oqFwwitvUI

YouTube

T V

DMB Floodzone - Blue Water 1992

as good as it gets

▶ Play video

plain mantle Feb 7, 2025, 3:33 AM

#

Will do

gilded shell Feb 7, 2025, 3:34 AM

#

i also really love the instrumentation of dmb

#

guitar, bass, violin, sax, and piano

plain mantle Feb 7, 2025, 3:34 AM

#

Pretty good yeah

gilded shell Feb 7, 2025, 3:35 AM

#

i also need to look at the flecktones

plain mantle Feb 7, 2025, 3:35 AM

#

Bela Fleck?

gilded shell Feb 7, 2025, 3:36 AM

#

yeah

#

coffin and wooten

#

and some other guys

#

wooten is phenomenal

plain mantle Feb 7, 2025, 3:37 AM

#

Wooten is goated yeah

echo token Feb 7, 2025, 2:33 PM

#

plain mantle Just pick it up and learn 3 chords. You can do alot with that

I fell off guitar as a kid because chords and chord changes sucked

#

if you ever get tired of those you should learn shedding fundamentals and just play fast riffs

#

that's about all I know how to do on a guitar

kind sparrow Feb 7, 2025, 4:37 PM

#

For the first 3 years of my guitar career I basically just played tremolo picking power cords on black/death metal stuff

plain mantle Feb 7, 2025, 4:51 PM

#

Yeah theres many different approaches you can take

kind sparrow Feb 7, 2025, 4:56 PM

#

That was the easy path for me since I played the drums so I already had the rhythm and muscle control for trem picking but didn't know shit about chords

gilded shell Feb 10, 2025, 1:59 AM

#

plain mantle https://youtu.be/blciN4nMGrM?si=Wgu95pWUOWvg9W2z

this was pretty good

#

except for the chanting at the end

gilded shell Feb 10, 2025, 4:00 AM

#

man i’m lazy

#

i’m starting to notice a pattern

#

if i’m in the middle of implementing a feature, i won’t procrastinate

#

but if i haven’t started any feature, i will procrastinate

gilded shell Feb 10, 2025, 4:06 AM

#

gilded shell todo: commit changes

first i need to do this, then implement multiview to my culling

#

i think i’ll just spawn one thread per cluster per view

#

then its just simple csm from there

#

I thought i would finally be able to write some lighting code but it’s back to this cluster batching shader 😔

plain mantle Feb 10, 2025, 4:38 AM

#

gilded shell first i need to do this, then implement multiview to my culling

You mean one thread per casacade?

spring kelp Feb 10, 2025, 6:58 AM

#

I haven't figured out how to do multiview for the hardware raster pass, yet

gilded shell Feb 10, 2025, 11:42 AM

#

plain mantle You mean one thread per casacade?

No

#

meshlet instances times number of views

#

number of views does include each frustum

#

if thats what youre asking

gilded shell Feb 10, 2025, 12:09 PM

#

spring kelp I haven't figured out how to do multiview for the hardware raster pass, yet

every day i thank my past self for having the insight to not implement lods and sw raster

gilded shell Feb 10, 2025, 9:24 PM

#

sounds like hell!

gilded shell Feb 10, 2025, 9:47 PM

#

is there a reason this is so vague???

kind sparrow Feb 10, 2025, 9:48 PM

#

With synchronous debug output it'll trap right when the bad call happens

#

Once you know what API call triggered the error, you can look it up in the spec and it'll tell you what that error means for that call

#

Probably mixed up the enums passed for texture creation

gilded shell Feb 10, 2025, 9:55 PM

#

ah I can't use GL_DEPTH_COMPONENT for my shadow map?

#

but GL_DEPTH_COMPONENT32F works fine

night shoal Feb 10, 2025, 9:56 PM

#

auto OnOpenGLDebugMessage(
    [[maybe_unused]] uint32_t source,
    uint32_t type,
    [[maybe_unused]] uint32_t id,
    [[maybe_unused]] uint32_t severity,
    [[maybe_unused]] int32_t length,
    const char* message,
    [[maybe_unused]] const void* userParam) -> void {

    if (type == GL_DEBUG_TYPE_ERROR) {
        spdlog::error(message); // or std::print or std::cout or whatever
        debug_break(); // or just put a bp in the line above
    }
}

glDebugMessageCallback(OnOpenGLDebugMessage, nullptr);
glEnable(GL_DEBUG_OUTPUT);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);

gilded shell Feb 10, 2025, 9:57 PM

#

oh 💀

gilded shell Feb 10, 2025, 9:57 PM

#

gilded shell ah I can't use `GL_DEPTH_COMPONENT` for my shadow map?

beacuase that's not an image format

night shoal Feb 10, 2025, 9:58 PM

#

🙂

gilded shell Feb 10, 2025, 10:05 PM

#

ill see if i can work this into a compiling state so you all can try this technological masterpiece

gilded shell Feb 11, 2025, 12:34 AM

#

windows only btw

gilded shell Feb 11, 2025, 3:32 AM

#

do you all keep a “common” includes header for, of course, common includes you need?

#

also for when you #define something you’ll need everywhere

kind sparrow Feb 11, 2025, 3:36 AM

#

Not really

#

But you could

#

Nothing intrinsically wrong with it

#

Usually you don't need anything absolutely everywhere though except for defines, which you can handle in your cmake script

gilded shell Feb 11, 2025, 3:51 AM

#

assuming i use cmake lol

#

i definitely should in my next project

plain mantle Feb 11, 2025, 3:52 AM

#

What are you using now?

gilded shell Feb 11, 2025, 3:52 AM

#

raw visual studio

#

hence the windows exclusivity

plain mantle Feb 11, 2025, 3:54 AM

#

Yeah me, bjorn & anicator are raw dogging msbuild too KEKW

#

You can cross compile with msbuild for some platforms though

#

I remember I made an android app using msbuild once

gilded shell Feb 11, 2025, 3:56 AM

#

i see

#

there’s something cleaner about cmake though

plain mantle Feb 11, 2025, 3:56 AM

#

Oh yeah it is

gilded shell Feb 11, 2025, 3:56 AM

#

my code feels more portable

plain mantle Feb 11, 2025, 3:57 AM

#

I don't like having to regenerate the solution all the time though

gilded shell Feb 11, 2025, 3:58 AM

#

huh?

plain mantle Feb 11, 2025, 3:58 AM

#

I wonder if there's some way to create cmake from a visual studio project though

gilded shell Feb 11, 2025, 3:59 AM

#

plain mantle I wonder if there's some way to create cmake from a visual studio project though

it’ll probably be terrible

#

if it does exist

plain mantle Feb 11, 2025, 3:59 AM

#

Yeah likely

gilded shell Feb 11, 2025, 3:59 AM

#

i still have to figure out working directories

#

the working directory people use when they launch my executable will affect the paths to assets

#

ive wondered how other applications handle that

plain mantle Feb 11, 2025, 4:01 AM

#

They just start in their install dir

gilded shell Feb 11, 2025, 4:02 AM

#

the application itself sets it?

plain mantle Feb 11, 2025, 4:02 AM

#

Usually you launch an app from a shortcut or something

#

Unless you intend people to launch your thing from the command line

gilded shell Feb 11, 2025, 4:03 AM

#

true

#

hey where’s the morgan freeman saying “true” emoji

kind sparrow Feb 11, 2025, 4:09 AM

#

You can put your global defines in your VS just the same

#

I just used cmake as an example

gilded shell Feb 11, 2025, 2:58 PM

#

I need to consider manual backface culling

#

i completely forgot about individual triangle culling

#

@spring kelp do you do this in your batching?

#

i imagine I would need to perform the culling before the atomicadd and index buffer writes, which sounds nasty

junior sparrow Feb 11, 2025, 3:32 PM

#

pretty sure triangle culling is done in mesh shaders

spring kelp Feb 11, 2025, 4:30 PM

#

gilded shell <@145540119141679105> do you do this in your batching?

I don't. Although with software raster I could. With hardware raster you need to either use mesh shaders, or write out a new index buffer.

gilded shell Feb 11, 2025, 4:42 PM

#

Alright. I’m not doing that.

gilded shell Feb 11, 2025, 5:51 PM

#

junior sparrow pretty sure triangle culling is done in mesh shaders

it was my understanding that mesh shaders kinda suck?

#

or do they just kinda suck for the meshlet cull batching

junior sparrow Feb 11, 2025, 5:59 PM

#

they might suck for culling but you can do culling in compute shader and then use mesh shaders

gilded shell Feb 11, 2025, 9:14 PM

#

visual studio randomly decides to start building "OpenGL-Sandbox/Debug/x64" instead of "Debug/x64"? huh?

#

#

quite some time ago apparently

#

thats not something i understand!

plain mantle Feb 11, 2025, 9:17 PM

#

You can change all those paths to whatever you want

#

its all in the project settings

west trail Feb 11, 2025, 9:19 PM

#

~~move to cmake for God's sake~~

gilded shell Feb 11, 2025, 9:23 PM

#

plain mantle You can change all those paths to whatever you want

yeah I just mostly did; now only log files appear there

night shoal Feb 11, 2025, 9:24 PM

#

perhaps you switched to "Release"

#

and forgot to config "Release" at the start, its output is still default

gilded shell Feb 11, 2025, 9:25 PM

#

nah i was on debug when it happened

night shoal Feb 11, 2025, 9:25 PM

#

ah

gilded shell Feb 11, 2025, 9:25 PM

#

its all tlog stuff

night shoal Feb 11, 2025, 9:26 PM

#

yeah vs shit

gilded shell Feb 11, 2025, 9:27 PM

#

it doesnt make sense to have OpenGL-Sandbox/OpenGL-Sandbox in my opinion

#

i must put a stop to this

night shoal Feb 11, 2025, 9:27 PM

#

close vs, delete it, open vs again see if its still there

gilded shell Feb 11, 2025, 9:28 PM

#

yeah it is

#

its probably some setting i cant find

#

actually theres a ton of objs too

#

definitely some build output residue

#

yep im smart

#

alright we MIGHT be golden

night shoal Feb 11, 2025, 9:32 PM

#

back when i used vs exclusively with cpopo i set it out to Build\Bin and imtermediateisms to Build\Temp for both configs from le start

gilded shell Feb 11, 2025, 9:32 PM

#

perchance

night shoal Feb 11, 2025, 9:32 PM

#

$(SolutionDir)Build/$(ProjectDir)Bin/
$(SolutionDir)Build/$(ProjectDir)Temp/

gilded shell Feb 11, 2025, 9:33 PM

#

yeah

night shoal Feb 11, 2025, 9:33 PM

#

platform is 64bit at all times anyway and if you want you can add $(Configuration) in there too for "Debug" and "Release" in the path/name

gilded shell Feb 11, 2025, 9:33 PM

#

all my third parties seem to be inside the project dir, so I don't need to deal with external linkage junk

#

I think you guys can finally play this

night shoal Feb 11, 2025, 9:34 PM

#

SecretPasswordStealer.exe

#

gilded shell Feb 11, 2025, 9:35 PM

#

deccer, are you on binbows

night shoal Feb 11, 2025, 9:36 PM

#

not in this moment

gilded shell Feb 11, 2025, 9:36 PM

#

oh okay

#

well if any windows user would like to give it a quick go, have at it

#

https://github.com/GrumStomper29/OpenGL-Sandbox

#

github desktop is elite

night shoal Feb 11, 2025, 9:38 PM

#

it used to be quite dogshit

#

and i never tried it again, fork, sourcetree even, and builtin git clients in all jetbrains tools are superior already next to git cli

plain mantle Feb 11, 2025, 9:44 PM

#

night shoal platform is 64bit at all times anyway and if you want you can add $(Configuratio...

What if I wanna compile for ARM?

#

Not that I do, but you technically can

night shoal Feb 11, 2025, 9:47 PM

#

then you could reintroduce $(Platform) 🙂

#

or you keep using that from the start

#

what always pissed me off in vs' configuration editor, i removed Win32 from the start, but as soon as you added a new project it was reintroduced back into the solution file, because the new project had it by default

#

the only true solution (when using vs only) are props files, but they are messy for c++ imho

#

cmake makes this much less painfullier

#

lol i hated cmake back then so much because it would always destroy my neat folder/solution structure for projects XD

spring kelp Feb 11, 2025, 10:53 PM

#

Languages not having a standardized build tool is insane to me

plain mantle Feb 11, 2025, 10:54 PM

#

C++ & C are languages I think it makes sense for

#

There are 3 different major C++ compilers (which is a good thing)

gilded shell Feb 11, 2025, 10:58 PM

#

yeah

#

competition

plain mantle Feb 11, 2025, 10:59 PM

#

I'm cloning your thing btw

#

have you considered using submodules for your third party libs?

#

1>(compiling source file 'src/main.cpp')```

#

first issue

#

Yup

#

you should make this relative to $(SolutionDir)

#

I changed to

gilded shell Feb 11, 2025, 11:04 PM

#

dang!

#

I knew I probably left an absolute path somewhere

plain mantle Feb 11, 2025, 11:06 PM

#

Also

#

this is in GLM

gilded shell Feb 11, 2025, 11:06 PM

#

I have no explanation for that

plain mantle Feb 11, 2025, 11:06 PM

#

mPos += getRotationMatrix() * glm::vec4{ displacement, 0.0f };

#

its this

#

pos is a vec3

gilded shell Feb 11, 2025, 11:07 PM

#

thats weird that it compiles fine for me

plain mantle Feb 11, 2025, 11:07 PM

#

mPos += glm::vec3(getRotationMatrix() * glm::vec4{ displacement, 0.0f });

#

this fixes that

gilded shell Feb 11, 2025, 11:08 PM

#

it might have something to do with visual studio C++ extensions or something

plain mantle Feb 11, 2025, 11:08 PM

#

I got the thing compiled, now I'm getting a crash on launch

#

looks like in asset loading

night shoal Feb 11, 2025, 11:09 PM

#

no aasets are checked in in case there are any

plain mantle Feb 11, 2025, 11:09 PM

#

Maybe I can make a PR with the things I fixed

#

this is probably another path issue

gilded shell Feb 11, 2025, 11:10 PM

#

let me see

gilded shell Feb 11, 2025, 11:11 PM

#

plain mantle Maybe I can make a PR with the things I fixed

no need

plain mantle Feb 11, 2025, 11:11 PM

#

Yeah the path is wrong

gilded shell Feb 11, 2025, 11:11 PM

#

its because of a gitignore in the assets folder

#

its hardcoded to load bistro.glb and cubes.glb lol

plain mantle Feb 11, 2025, 11:12 PM

#

The path also looks wrong though

#

it looks two folders up from the debugging dir

#

Do I need to download those myself?

gilded shell Feb 11, 2025, 11:12 PM

#

probably

gilded shell Feb 11, 2025, 11:13 PM

#

plain mantle it looks two folders up from the debugging dir

the exe is is solution/x64/debug, no?

#

so to get back to the solution dir, I use ../../

plain mantle Feb 11, 2025, 11:13 PM

#

yeah but the working dir is set to $(ProjectDir)

gilded shell Feb 11, 2025, 11:14 PM

#

no?

#

plain mantle Feb 11, 2025, 11:14 PM

#

did you maybe forget to commit that?

gilded shell Feb 11, 2025, 11:14 PM

#

it should be commmitted

gilded shell Feb 11, 2025, 11:15 PM

#

plain mantle Yup

this is just the vc++ directories, right?

night shoal Feb 11, 2025, 11:15 PM

#

those dont sit in the project file

#

but are stored in .vs\xxx.user something iirc

plain mantle Feb 11, 2025, 11:16 PM

#

gilded shell this is just the vc++ directories, right?

gilded shell Feb 11, 2025, 11:16 PM

#

alright, I just fixed those and the glm type thing

plain mantle Feb 11, 2025, 11:16 PM

#

where do I get the glb files?

gilded shell Feb 11, 2025, 11:16 PM

#

night shoal but are stored in `.vs\xxx.user` something iirc

iirc yall told me I should gitignore that since it was some personal settings or something lol

#

maybe im remembering wrong

gilded shell Feb 11, 2025, 11:17 PM

#

plain mantle where do I get the glb files?

im gonna do something real dumb and upload them directly

#

to the repo

plain mantle Feb 11, 2025, 11:18 PM

#

As long as you include the license info I got no problem with that

gilded shell Feb 11, 2025, 11:18 PM

#

yup bistro.glb is too big

#

as I thought

plain mantle Feb 11, 2025, 11:18 PM

#

I think I might have it somewhere

gilded shell Feb 11, 2025, 11:18 PM

#

I believe it's SOMEWHERE out there

#

i dont remember where I got it though

plain mantle Feb 11, 2025, 11:19 PM

#

Damn the one I have is FBX

gilded shell Feb 11, 2025, 11:20 PM

#

I just pushed the bug fixes, all should work in theory

#

you just need that glb

night shoal Feb 11, 2025, 11:20 PM

#

yeah because it usually contains user related settings for your environment, jake or me might have different "preferences" but working dir should be part of the ordinary settings if you ask me

#

but again, prop sheets could solve that too

plain mantle Feb 11, 2025, 11:21 PM

#

I never realized it wasn't

gilded shell Feb 11, 2025, 11:21 PM

#

you might be able to just drop any glb file in called bistro.glb lol

plain mantle Feb 11, 2025, 11:21 PM

#

Ok lets see how it likes sponza

gilded shell Feb 11, 2025, 11:22 PM

#

i havent tested sponza in a minute

gilded shell Feb 11, 2025, 11:23 PM

#

night shoal yeah because it usually contains user related settings for your environment, jak...

should be, but I just checked and its in the user settings for some reason

#

@plain mantle texture compression is disabled iirc, hope you have enough vram

plain mantle Feb 11, 2025, 11:24 PM

#

I have 8gb

gilded shell Feb 11, 2025, 11:24 PM

#

that should work

#

hopefully

plain mantle Feb 11, 2025, 11:25 PM

#

You should enable compression lol

#

that would really improve performance

gilded shell Feb 11, 2025, 11:25 PM

#

yeah but it like doubles loading times

#

and those are already unbearable

plain mantle Feb 11, 2025, 11:26 PM

#

You can cache that shit

gilded shell Feb 11, 2025, 11:26 PM

#

probably

plain mantle Feb 11, 2025, 11:26 PM

#

Driver texture compression is pretty bad anyways

#

I use bc7enc and save the result on the first import

#

the subsequent loads are faster than without compression

gilded shell Feb 11, 2025, 11:27 PM

#

yeah

#

idk if fastgltf supports glb writing though

plain mantle Feb 11, 2025, 11:27 PM

#

No I mean the app caches the textures

#

in its own folder

gilded shell Feb 11, 2025, 11:27 PM

#

oh okay

#

is it running?

plain mantle Feb 11, 2025, 11:30 PM

#

one sec

#

#

#

How do I rotate the camera?

gilded shell Feb 11, 2025, 11:33 PM

#

arrow keys

#

I don't like those errors

plain mantle Feb 11, 2025, 11:34 PM

#

Those are peformance warnings I think

gilded shell Feb 11, 2025, 11:34 PM

#

I see those

plain mantle Feb 11, 2025, 11:34 PM

#

Oh there is an error yeah

#

missing wall lmao

gilded shell Feb 11, 2025, 11:34 PM

#

What could it be

plain mantle Feb 11, 2025, 11:35 PM

#

API, ERROR, HIGH, 1285: GL_OUT_OF_MEMORY error generated. Failed to allocate memory for buffer object.

gilded shell Feb 11, 2025, 11:35 PM

#

welp that does it

#

sponza probably has too much stuff

plain mantle Feb 11, 2025, 11:35 PM

#

This is crytek sponza though

#

GPU memory still got lots left

gilded shell Feb 11, 2025, 11:36 PM

#

interesting

#

im no longer on my pc btw

plain mantle Feb 11, 2025, 11:36 PM

#

Maybe you need to check the max buffer sizes

gilded shell Feb 11, 2025, 11:36 PM

#

yeah not sure what i did there

#

are you able to use breakpoints?

#

synchronous debug should be on

#

I also really dont like the 6ms render time

plain mantle Feb 11, 2025, 11:40 PM

#

I'm in debug mode so I wouldn't worry too much a bout the perf

#

but yeah I can set a breakpoint in the error callback

#

what file is that in ?

gilded shell Feb 11, 2025, 11:40 PM

#

main probably

plain mantle Feb 11, 2025, 11:40 PM

#

Demongod would be proud

gilded shell Feb 11, 2025, 11:41 PM

#

lol

#

@kind sparrow arent you

kind sparrow Feb 11, 2025, 11:41 PM

#

didnotread

gilded shell Feb 11, 2025, 11:41 PM

#

model loading stuff is either gonna be in model.cpp or scene.cpp

kind sparrow Feb 11, 2025, 11:41 PM

#

What's going on

plain mantle Feb 11, 2025, 11:41 PM

#

He put everything in main.cpp

kind sparrow Feb 11, 2025, 11:41 PM

#

Ah

plain mantle Feb 11, 2025, 11:41 PM

#

anti-bikeshed

gilded shell Feb 11, 2025, 11:42 PM

#

thats an overexageration

#

my debug callback is in main

plain mantle Feb 11, 2025, 11:42 PM

#

Raw opengl calls in main.cpp

kind sparrow Feb 11, 2025, 11:42 PM

#

Tbh I don't really do that because my projects explode in size at the start since I am so productive with my anti-bikeshedding that it doesn't live in main for long

gilded shell Feb 11, 2025, 11:42 PM

#

kind sparrow What's going on

it compiles now on your very own pc

#

running though? probably not

plain mantle Feb 11, 2025, 11:43 PM

#

Its running for me rn

gilded shell Feb 11, 2025, 11:43 PM

#

missing walls though

plain mantle Feb 11, 2025, 11:44 PM

#

gilded shell Feb 11, 2025, 11:44 PM

#

uh oh

plain mantle Feb 11, 2025, 11:44 PM

#

wait I don't know if thats an error

#

but we hit the callback

#

you formatted your switch weirdly

#

so the breakpoint was in the wrong place

gilded shell Feb 11, 2025, 11:46 PM

#

plain mantle you formatted your switch weirdly

it was actually formatted very nicely, then vs messed it up and i havent taken the time to fix it

plain mantle Feb 11, 2025, 11:46 PM

#

Ok I am getting an error there GL_INVALID_VALUE error generated. <size> must be positive.

gilded shell Feb 11, 2025, 11:46 PM

#

plain mantle Ok I am getting an error there ```GL_INVALID_VALUE error generated. <size> must ...

???

plain mantle Feb 11, 2025, 11:46 PM

#

mBlendIndexCount == 0

gilded shell Feb 11, 2025, 11:46 PM

#

oh

#

word

#

not really sure how to fix that lol

plain mantle Feb 11, 2025, 11:47 PM

#

maybe it was my fake bistro

gilded shell Feb 11, 2025, 11:47 PM

#

nah

plain mantle Feb 11, 2025, 11:47 PM

#

📎 Bistro1.glb

gilded shell Feb 11, 2025, 11:48 PM

#

it just always expects some alpha blended materials

#

i did push cubes.glb to the repo, those are blended. Try those

plain mantle Feb 11, 2025, 11:48 PM

#

sponza has the plants

gilded shell Feb 11, 2025, 11:49 PM

#

plain mantle sponza has the plants

maybe those are alpha mask

plain mantle Feb 11, 2025, 11:49 PM

#

I had the deccer cubes in there

gilded shell Feb 11, 2025, 11:50 PM

#

is that the only error?

gilded shell Feb 11, 2025, 11:50 PM

#

plain mantle ```API, ERROR, HIGH, 1285: GL_OUT_OF_MEMORY error generated. Failed to allocate ...

id like to know where this was

plain mantle Feb 11, 2025, 11:50 PM

#

I just put in your cube file now I'm getting a crash

gilded shell Feb 11, 2025, 11:50 PM

#

oh wow

#

any message

plain mantle Feb 11, 2025, 11:50 PM

#

gilded shell id like to know where this was

Its the place I was showing before

#

crash in glMapNamedBuffer

gilded shell Feb 11, 2025, 11:51 PM

#

might be a sync error

plain mantle Feb 11, 2025, 11:51 PM

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main.cpp line 475

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I got an image for a bit before it crashed

gilded shell Feb 11, 2025, 11:52 PM

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plain mantle I got an image for a bit before it crashed

single frame, or multiple

plain mantle Feb 11, 2025, 11:52 PM

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Many frames

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it appears to happen randomly

gilded shell Feb 11, 2025, 11:52 PM

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definitely sync

plain mantle Feb 11, 2025, 11:52 PM

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No errors any more though

gilded shell Feb 11, 2025, 11:52 PM

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plain mantle No errors any more though

https://tenor.com/view/why-persian-room-cat-guardian-but-why-trendizisst-anyaboz-gif-2156104475561014590

Tenor

plain mantle Feb 11, 2025, 11:53 PM

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It was probably just the blend ibo thing

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also sponza walls intact

gilded shell Feb 11, 2025, 11:53 PM

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everything’s working?

plain mantle Feb 11, 2025, 11:53 PM

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It crashed before I could screenshot though

gilded shell Feb 11, 2025, 11:53 PM

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bruh

plain mantle Feb 11, 2025, 11:54 PM

#

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Ok got one

gilded shell Feb 11, 2025, 11:54 PM

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i like that perf quite a bit more

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but the random crashes are weird

plain mantle Feb 11, 2025, 11:54 PM

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yeah not erroring proabably helps

gilded shell Feb 11, 2025, 11:54 PM

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im still not clear

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theres no more errors, right?

plain mantle Feb 11, 2025, 11:55 PM

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empty console

gilded shell Feb 11, 2025, 11:55 PM

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epic

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and crash free?

plain mantle Feb 11, 2025, 11:55 PM

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lmao just crashed again

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sounds like sync

gilded shell Feb 11, 2025, 11:56 PM

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has to be

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not sure where

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what card are you using?

plain mantle Feb 11, 2025, 11:56 PM

#

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2060 Super

gilded shell Feb 11, 2025, 11:56 PM

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i see

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your gpu probably chugs faster than mine, explaining why i dont have any

plain mantle Feb 11, 2025, 11:57 PM

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What do you have?

gilded shell Feb 11, 2025, 11:57 PM

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3050

plain mantle Feb 11, 2025, 11:57 PM

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I didn't even know there was a 3050

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mobile?

gilded shell Feb 11, 2025, 11:58 PM

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nah its desktop

gilded shell Feb 11, 2025, 11:58 PM

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plain mantle

anyways, both the occluder_batch and cluster_batch perform an atomicAdd to that buffer

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just toss a glfinish in front ig

plain mantle Feb 11, 2025, 11:59 PM

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before glMapNamedBuffer?

gilded shell Feb 11, 2025, 11:59 PM

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probably

plain mantle Feb 12, 2025, 12:00 AM

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Nope

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still doing it

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Maybe you should test with my sponza

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I gotta get back to my project

gilded shell Feb 12, 2025, 12:02 AM

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ill be back

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yeah thanks for your help

plain mantle Feb 12, 2025, 12:02 AM

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No worries

gilded shell Feb 12, 2025, 12:32 AM

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plain mantle Maybe you should test with my sponza

is this version available online or can you share it?

plain mantle Feb 12, 2025, 12:32 AM

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I shared it before

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#1234659747291201587 message

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its the crytek one, I just converted it to glb

gilded shell Feb 12, 2025, 12:49 AM

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oh i didnt see that sorry

gilded shell Feb 12, 2025, 1:35 PM

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plain mantle Maybe you should test with my sponza

running it now without error

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so it must be sync

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or ub that crashes your gpu but not mine

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I really wish the bug would happen for me so I could debug it

gilded shell Feb 12, 2025, 2:02 PM

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plain mantle Nope

especially if this doesn't fix it

plain mantle Feb 12, 2025, 3:16 PM

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Do you have another gpu you can test on? Possibly there's an iGPU in your system?

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If there's UB it can pop up anywhere

gilded shell Feb 12, 2025, 3:46 PM

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nah

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something makes me think the actual error is happening before that loc

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i dont see anything on that line that would throw

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could this be it?

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making a draw call, then copying that draw's depth buffer

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@plain mantle if you get time, could you try adding this line to main

plain mantle Feb 13, 2025, 5:20 AM

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This did not fix it

gilded shell Feb 13, 2025, 11:42 AM

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darn

kind sparrow Feb 13, 2025, 5:05 PM

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If you run RD with "verify buffer access" enabled what happens

gilded shell Feb 13, 2025, 5:11 PM

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kind sparrow If you run RD with "verify buffer access" enabled what happens

thats not an option due to bindless textures

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maybe i can somehow disable them

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or if nsight has an equivalent

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this project is only possible because of n sight

kind sparrow Feb 13, 2025, 5:13 PM

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The reason I suggested that option isn't because of the bounds checking but rather because it clears all your buffers to 0xDDDDDDDD

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So if you access bad data it'll break your program

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But you can just manually clear your buffers to that value

gilded shell Feb 13, 2025, 6:14 PM

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i dont ever remember opengl throwing exceptions though

kind sparrow Feb 13, 2025, 6:14 PM

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It doesn't

gilded shell Feb 13, 2025, 6:14 PM

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right

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glMapBuffers doing that is weird

kind sparrow Feb 13, 2025, 6:15 PM

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With renderdoc you can attach a debugger and it'll trap on an OOB host access

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And then with the debug clear value it'll just cause crazy UB that gives you some signal as to whether things are working

gilded shell Feb 13, 2025, 6:15 PM

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whats oob mean?

plain mantle Feb 13, 2025, 6:18 PM

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Out of bounds

gilded shell Feb 13, 2025, 6:18 PM

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i see

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which could cause the throw?

gilded shell Feb 13, 2025, 7:18 PM

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also are your drivers up to date lol

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@plain mantle

plain mantle Feb 13, 2025, 7:22 PM

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gilded shell Feb 13, 2025, 7:28 PM

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plain mantle

I believe there is a newer version

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dont quote me on that

night shoal Feb 13, 2025, 8:24 PM

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there are a few newer ones, yeah

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but the latest 572.. doesnt seem to be that stable yet

gilded shell Feb 13, 2025, 8:36 PM

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either way I doubt GrubStomper29’s OpenGL Sandbox found an rtx driver bug

kind sparrow Feb 13, 2025, 8:47 PM

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Probably not

gilded shell Feb 14, 2025, 2:46 AM

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@kind sparrow quite literally makes a cameo here https://youtu.be/Bmx7kup3gpo?si=jTWjEjff0kv1S0k-

YouTube

IGoByLotsOfNames

Making my game 10x faster (By starting over)

Minecraft game development has peaked in 2024. But in today's audiovisual presentation (2024), game development will continue.

Music list: https://pastebin.com/H64mUxHY

▶ Play video

kind sparrow Feb 14, 2025, 3:15 AM

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I have seen it

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I don't like it though he takes my comment out of context

gilded shell Feb 14, 2025, 3:19 AM

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fair enough

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still i dont see it as insulting

#GrubStomper29's OpenGL Sandbox