Foundation - My adventure through Graphics Programming | Graphics Programming | Page 4

merry laurel Jul 3, 2025, 3:58 PM

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I want to finally correctly handle opaque, masked and transparent materials

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My renderer is gpu driven so handling this stuff is annoying

vernal blade Jul 3, 2025, 3:59 PM

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seems like you have backface culling on for the bushes?

merry laurel Jul 3, 2025, 3:59 PM

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yeah I do

vernal blade Jul 3, 2025, 3:59 PM

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they look a little too sparse

merry laurel Jul 3, 2025, 4:00 PM

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vernal blade they look a little too sparse

much better thank you froge_love

pale vortex Jul 3, 2025, 4:01 PM

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is this with srgb fixup on? it looks so dark

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or is the ambient light a dark gray?

merry laurel Jul 3, 2025, 4:02 PM

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yeah I have some very bad lighting code kekkedsadge

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this is without the lighting

merry laurel Jul 3, 2025, 4:06 PM

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merry laurel My renderer is gpu driven so handling this stuff is annoying

It took me a while of thinking to arrive to somewhat good solution.
I have to track how many opaque, masked and transparent meshes and meshlets to create buffers
All meshlet instances live in the same buffer but the buffer divided to three parts. Where each part corresponds to each material type.
For the culling and rendering I header which has the the correct pointers to store the data and offset of the part.

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Also I am forcing masked and transparent to be hw rasterized.

merry laurel Jul 3, 2025, 7:03 PM

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@supple cliff Is it safe to use master branch right now?

supple cliff Jul 3, 2025, 7:34 PM

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if you are a little sus on it take the commit of 3.1

merry laurel Jul 3, 2025, 7:40 PM

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hmm. I wanted to add VK_KHR_maintenance8 but it seems that nvidia drivers just dont have it. For some god forsaken reason. Even tho there are reports on gpuinfo and I downgraded my drivers

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So it is the uglier second option

supple cliff Jul 3, 2025, 7:49 PM

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i also want to add it

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it somehow takes ages to fully arrive

merry laurel Jul 3, 2025, 7:54 PM

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I wanted it because you are not allowed to write into D32 image. I hoped that R32 -> D32 copy from maintenance8 would work but nvidia doesnt have it...

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So the last option is fragment shader and manually writing the depth...

supple cliff Jul 3, 2025, 7:54 PM

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yea same

merry laurel Jul 3, 2025, 7:55 PM

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so stupid

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https://tenor.com/view/tony-stark-limited-tech-meme-technology-gif-10681570624129307805

Tenor

supple cliff Jul 3, 2025, 8:08 PM

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master should be fine tho

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tido runs etc

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and it has the latest syntax

merry laurel Jul 3, 2025, 8:10 PM

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🫡

supple cliff Jul 3, 2025, 8:28 PM

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new syntax is not documented yet but its much simpler

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i can post the gist here

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inline tasks are now the default. Taskheads can be used in inline tasks. There is also a new name for them, just daxa::Task.

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examples:


DAXA_DECL_COMPUTE_TASK_HEAD(SomeTaskHead)
DAXA_TH_BUFFER(READ, buf)
DAXA_TH_IMAGE(READ_WRITE, img)
DAXA_DECL_TASK_END

void callback(daxa::TaskInterface, daxa::TaskBufferView cmd_buf, int cool_data)
{
  ...
}

...

int cool_data = 123;

auto task = daxa::Task::Compute("Name")
    .uses_head<SomeTaskHead::Info>()          // adds task head to task, adds head attachments to task
    .head_views({                             // fills task head attachment views
      .buf = buf_view0,
      .img = img_view0,
    })
    .indirect_cmd.reads(cmd_buf_view)         // adds new inline attachment for cmd_buf_view
    .executes(callback, cmd_buf, cool_data);  // adds callback and copies all the parameters for callback

merry laurel Jul 3, 2025, 8:33 PM

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Interesting. I am quite happy with the current syntax 😄

supple cliff Jul 3, 2025, 8:33 PM

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yea its just that this unifies some code in the background

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makes future additions easier also

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you can still do all the other builder inline task things like before:

auto task = daxa::Task::Compute("OtherName")
  .writes(buf)
  .samples(img)
  .executes([=](daxa::TaskInterface ti) {...});

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old style retained tasks also still work:

SomeTaskHead::Task{
  .views = {
      .buf = buf_view0,
      .img = img_view0,
  },
  .cool_data = 123,
};

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@merry laurel how old daxa are you on btw ? 🙂 cause the syntax changed a lot lot recently

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the super old syntax for inline tasks is now deprecated. It will still work but ill remove it end of year in favor of the new builder tasks

merry laurel Jul 3, 2025, 8:38 PM

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I running on version from May 4th

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not that old

supple cliff Jul 3, 2025, 8:38 PM

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supple cliff examples: ```c++ DAXA_DECL_COMPUTE_TASK_HEAD(SomeTaskHead) DAXA_TH_BUFFER(READ...

oh btw you can also use heads as a pure data transfer tool now without the access in the head:

DAXA_DECL_COMPUTE_TASK_HEAD(SomeTaskHead)
DAXA_TH_BUFFER(NONE, buf)
DAXA_TH_IMAGE(NONE, img)
DAXA_DECL_TASK_END

void callback(daxa::TaskInterface, daxa::TaskBufferView cmd_buf, int cool_data)
{
  ...
}

...

int cool_data = 123;

auto task = daxa::Task::Compute("Name")
    .uses_head<SomeTaskHead::Info>()          
    .reads({.buf = buf_view})                 // sets access for attachment here, instead of in the head
    .writes({.img = img_view})                // sets access for attachment here, instead of in the head
    .indirect_cmd.reads(cmd_buf_view)         
    .executes(callback, cmd_buf, cool_data);

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gabe and saky wanted this

merry laurel Jul 3, 2025, 8:39 PM

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thats nice

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that would be useful for me today 😄

supple cliff Jul 3, 2025, 8:40 PM

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this makes it very convenient to add heads to existing inline tasks

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there will come more builder functions like uses_queue() and waits_on() for sheduling

merry laurel Jul 3, 2025, 8:41 PM

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oh nice

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cant wait for the async compute to drop

supple cliff Jul 3, 2025, 8:44 PM

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its in already 😮

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but its a little buggy in the sense that it will try to insert some illegal barriers

merry laurel Jul 3, 2025, 8:44 PM

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I wonder if the SW raster would benefit

supple cliff Jul 3, 2025, 8:44 PM

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its super easy to use

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before you start doing that ill make a last syntax change to it today

merry laurel Jul 3, 2025, 8:45 PM

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I will touch in a month

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I am currently trying to get transparency going on and then next rabbithole is animated models with meshlets

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First time configuring normal raster pipeline in very long time

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I didnt missed it at all

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my beloved compute shader

supple cliff Jul 3, 2025, 9:03 PM

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oh yea

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there are new create infos with a 2 suffix now 😄

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they are nicer to use, less nesting

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also saner default setting in pipeline manager

merry laurel Jul 3, 2025, 9:07 PM

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I know I had to change the code

supple cliff Jul 3, 2025, 9:46 PM

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submitted changes

merry laurel Jul 3, 2025, 10:04 PM

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🫡

merry laurel Jul 4, 2025, 11:42 AM

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After fighting my asset manager. I have managed to track down my issue. I only updated materials that had textures but these cubes dont have any so it broke...
Now figure out how do you blend correctly 😭

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Okay I am getting close to the desired result

merry laurel Jul 4, 2025, 2:06 PM

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Now animated models with meshlets froge_love

merry laurel Jul 4, 2025, 3:16 PM

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merry laurel Okay I am getting close to the desired result

now its correct

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god I hate blend functions

supple cliff Jul 4, 2025, 5:13 PM

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damn i gotta add transparencies to tido

merry laurel Jul 4, 2025, 5:18 PM

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supple cliff damn i gotta add transparencies to tido

slap wboit on it froge_evil

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but I was thinking about "linked list" or sorted transparency using vis index

supple cliff Jul 4, 2025, 5:20 PM

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i think i wanna try visindex and sorting

merry laurel Jul 4, 2025, 5:21 PM

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yeah thats on TODO list

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Next is animated models. Thats going to be interesting

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I have to do skinning on gpu to calculate bounding boxes and spheres for culling

supple cliff Jul 4, 2025, 5:24 PM

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that is true

merry laurel Jul 4, 2025, 5:28 PM

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Also I will have to some shenanigans with memory. Currently my renderer automatically instances meshes but with animated ones you cant do that because the animation state could be different.

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I will have to create "fake" meshes that will share non skinned vertices and also they have their own skinned vertices.

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I am not particularly excited about that

supple cliff Jul 4, 2025, 5:41 PM

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like instanced draw calls?

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so 2013 :p

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single ultra indirect mega drawcall >>>

merry laurel Jul 4, 2025, 5:42 PM

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supple cliff like instanced draw calls?

no no no. I reuse the same mesh buffer automatically but with different transform

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I am on that indirect mega drawcall train

supple cliff Jul 4, 2025, 5:44 PM

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oh ofc

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idk i wouldnt call that instancing hmm

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instancing is an overloaded poop work

merry laurel Jul 4, 2025, 5:44 PM

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yeah...

supple cliff Jul 4, 2025, 5:45 PM

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for animations i would scratch allocate space for verts every frame and make temporary meshes into those

merry laurel Jul 4, 2025, 5:45 PM

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thats my idea

supple cliff Jul 4, 2025, 5:45 PM

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cool

supple cliff Jul 4, 2025, 5:46 PM

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merry laurel I am not particularly excited about that

yea its always poopy

merry laurel Jul 4, 2025, 5:47 PM

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I have also my own model format so it gets painful to add something. To add just simple base color factor I had to modify code on 5 different places

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But the loading times are really nice

merry laurel Jul 4, 2025, 8:27 PM

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@proud marten Got a question about animations in gltf. Their stupid joint to node mapping does serve anything because it looks like to me that it is utterly useless

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The more I look at it the more I hate it

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https://tenor.com/view/i-hate-this-data-tng-star-trek-the-next-generation-gif-19976541

Tenor

proud marten Jul 4, 2025, 10:03 PM

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merry laurel <@1092138590051520552> Got a question about animations in gltf. Their stupid joi...

i cant remember

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maybe it has something to do with the transform hierarchy

devout niche Jul 5, 2025, 3:33 AM

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merry laurel slap wboit on it <:froge_evil:1105211334020309052>

have you tweaked params related to blending alpha, depth, etc?

merry laurel Jul 5, 2025, 12:18 PM

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devout niche have you tweaked params related to blending alpha, depth, etc?

yeah

merry laurel Jul 5, 2025, 4:35 PM

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This should be rotating cube KEKW

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Found the suspect. I have to do this...

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yay I just made flecs explode

merry laurel Jul 5, 2025, 6:18 PM

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simple animations are working now

merry laurel Jul 5, 2025, 6:51 PM

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morph targets are next but with twist skinning in compute

merry laurel Jul 6, 2025, 10:36 AM

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After more thinking I will have to disable nanite lods for animated models

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https://tenor.com/view/yakuza-gif-18148683

Tenor

merry laurel Jul 6, 2025, 11:34 AM

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I am fixing so many bugs in my asset pipeline kekkedsadge

north helm Jul 6, 2025, 8:58 PM

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merry laurel After more thinking I will have to disable nanite lods for animated models

why ?

merry laurel Jul 6, 2025, 9:00 PM

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north helm why ?

the problem is group bounding spheres

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I can calculate the bounding spheres for each meshlet but the group sphere is more complex

merry laurel Jul 8, 2025, 4:48 PM

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Started that mentioned job. The company and people are amazing. Only pain is trying to build the work project and oh boy its second day and we havent been able to build it. Even with the help of 3 people bleakekw

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Also the the registration for my college and the classes just opened froge_love

small osprey Jul 8, 2025, 5:44 PM

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merry laurel Started that mentioned job. The company and people are amazing. Only pain is try...

yooo do you work at epic too KEKW

merry laurel Jul 8, 2025, 5:44 PM

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small osprey yooo do you work at epic too <:KEKW:666849321462792234>

No KEKW

small osprey Jul 8, 2025, 5:45 PM

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lol

merry laurel Jul 8, 2025, 5:46 PM

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I work for Chyron

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I am working on some software they acquired some years ago and the buildsystem is fucking mess. Basically one few people know it and want to rip it out and kill with fire. They cant do it because its quite a effort and nobody wants to do it bleakekw

proud marten Jul 8, 2025, 6:40 PM

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merry laurel the problem is group bounding spheres

why do you need group bounding spheres

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are you culling hierachically if thats the right word

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or is this related to the lod hierarchy or both

merry laurel Jul 8, 2025, 6:44 PM

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proud marten are you culling hierachically if thats the right word

Exactly

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It's possible to do it but I just dont want to

proud marten Jul 8, 2025, 9:31 PM

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I see

merry laurel Jul 9, 2025, 8:27 AM

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Hmm this asset manager thing eh... It's not fun. Asset manager does a lot of stuff that it shouldn't but for now it will suffice. I want to get these stupid animations working then I will rewrite this part of code. And finally manage removing meshes at runtime

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As a reward I will do ViSM

merry laurel Jul 15, 2025, 7:53 PM

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Just one more tab

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Finally got some free time to work on this

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Its not much after full time work and freelance gig

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Next thing to do is going to be annoying as hell.
For each animated mesh I need to create:

mesh geometry struct that houses all the data about the mesh on the gpu
animated mesh struct that has pointers to the previously mentioned struct but also pointers to its own memory for skinned vertices, etc...
render mesh struct where each pointer points to a mesh geometry struct or a animated mesh struct data

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this mess is also on the cpu side

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after that I can do gpu side where I will have to two passes with compute shaders

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skin the vertices using morph targets and skin matrices
calculate bounding box for each meshlet but also bounding sphere using ritters algorithm

merry laurel Jul 15, 2025, 8:19 PM

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merry laurel Next thing to do is going to be annoying as hell. For each animated mesh I need ...

This stuff is not really interesting but after this plumbing is done then I can have some bounding boxes changing the size and position froge_love

merry laurel Jul 16, 2025, 8:38 PM

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merry laurel Next thing to do is going to be annoying as hell. For each animated mesh I need ...

part 1. and 3. are done it longer than I would liked to. Tomorrow I will tackle the rest

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Only thing I have to figure out how I will send weights and skin matrices to the gpu

merry laurel Jul 17, 2025, 2:17 PM

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I hate Qt so much 😭

merry laurel Jul 17, 2025, 5:45 PM

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I might start using vkCmdUpdateBuffer because I getting tired of spamming stagging buffer for every small thing

supple cliff Jul 17, 2025, 6:51 PM

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i wanna add it to daxas command recorder

merry laurel Jul 17, 2025, 6:52 PM

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👀

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would be nice with the memcpy to the image extension that you just added

supple cliff Jul 17, 2025, 6:52 PM

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meanwhile you can use daxa::RingBuffer also

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very easy to use

merry laurel Jul 17, 2025, 6:52 PM

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For now I will cope with staging buffers

supple cliff Jul 17, 2025, 6:53 PM

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merry laurel would be nice with the memcpy to the image extension that you just added

oh it can read from host, no need for update buffers on it

merry laurel Jul 17, 2025, 6:53 PM

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I have just finished cpu code for this animated meshlet stuff

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now gpu bleaker_kekw

supple cliff Jul 17, 2025, 6:53 PM

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https://github.com/Ipotrick/Daxa/blob/a303a79d9a370ef49070aec399ae70d76bf96c47/tests/2_daxa_api/8_mem/main.cpp#L15

GitHub

Daxa/tests/2_daxa_api/8_mem/main.cpp at a303a79d9a370ef49070aec399a...

Daxa is a convenient, simple and modern gpu abstraction built on vulkan - Ipotrick/Daxa

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its just creating it + calling reuse_memory_after_pending_submits once end of frame

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then you can call allocate to get a section into this ring buffer, the return value gives offset and pointers to the memory

merry laurel Jul 17, 2025, 6:56 PM

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thats nice 👀

merry laurel Jul 17, 2025, 9:07 PM

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We have big success. This meshes vertices and bounding box and sphere are computed on the gpu

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Tomorrow I will add the animation logic and then we should have animated cube with morph targets froge_love

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I am currently cheating a bit with the bounding sphere. I am calculating it using the AABB instead of Ritter's algorithm

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such a shame that nvidia doesnt have VK_EXT_shader_atomic_float2

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I have to resort to some bs

merry laurel Jul 18, 2025, 6:18 PM

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I will be so happy when this animation stuff is behind me

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My head hurts just by thinking about it

merry laurel Jul 18, 2025, 9:15 PM

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merry laurel such a shame that nvidia doesnt have VK_EXT_shader_atomic_float2

it was a bigger pain than I could imagine

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but it works

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the trick that I had to use to make it work was

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https://tenor.com/view/throw-up-dry-heave-vomit-gross-eww-gif-23254758

Tenor

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We have working morph targets

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The AABB is updated from the compute shader froge_love

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Next thing is consult the spec how I should handle normals and uvs with morph targets

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Then skinned meshes

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After that some bugs that I am aware of but ignored so I can see the stuff actually works

merry laurel Jul 20, 2025, 9:14 AM

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gltf is causing me some major headaches. I will have to classify if the animation is either for entity, joint or morph targets

proud marten Jul 20, 2025, 1:14 PM

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merry laurel 1. skin the vertices using morph targets and skin matrices 2. calculate bounding...

skinning in compute?

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why not a vertex shader? Is it related to culling

merry laurel Jul 20, 2025, 1:25 PM

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proud marten why not a vertex shader? Is it related to culling

Yep

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I have to recalculate the bounds

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Also I don't have to skin the vertices everytime I render the mesh

proud marten Jul 20, 2025, 1:29 PM

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merry laurel Also I don't have to skin the vertices everytime I render the mesh

ah yeah thats smart

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do you streamline anything else like that for multiview? i imagine you could do world transforms in compute

merry laurel Jul 20, 2025, 1:35 PM

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proud marten do you streamline anything else like that for multiview? i imagine you could do ...

Nope because that would be too much memory

proud marten Jul 20, 2025, 1:35 PM

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fair

small osprey Jul 20, 2025, 2:20 PM

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shadowmaps considered harmful

merry laurel Jul 20, 2025, 2:24 PM

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too bad I am going to do virtual shadow mapping froge_evil

small osprey Jul 20, 2025, 2:47 PM

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just RT

merry laurel Jul 20, 2025, 5:41 PM

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https://tenor.com/view/shannon-sharpe-undisputed-nope-funny-face-gif-536487951695337499

Tenor

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This is skinned mesh. Quite a nice plane

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Looks like I am in some chicken and egg problem this so fun bleaker_kekw

merry laurel Jul 20, 2025, 9:06 PM

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I added all the necessary code and it's broken....

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This is going to be more annoying than I thought

small osprey Jul 20, 2025, 9:09 PM

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https://tenor.com/ba36u.gif

Tenor

merry laurel Jul 20, 2025, 9:11 PM

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https://tenor.com/view/aneurysm-hhhhomeboyyyy-kings-dark-tidings-saga-by-kel-kade-reaperleviathan-head-explode-gif-21578105

Tenor

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I am going to git stash all the code and will do the cpu side a bit better

merry laurel Jul 20, 2025, 9:31 PM

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My whole gpu driven rendering pipeline caused me less headache than this bullshit. I have been stuck on this for 15 days.

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Virtual shadow mapping is going to be a bliss for me. I will be so happy to get rid of this anurysm inducing bullshit from my TODO list

proud marten Jul 21, 2025, 2:47 AM

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small osprey https://tenor.com/ba36u.gif

word

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if it makes you feel any better i spent several months diagnosing and fixing a single animation bug

merry laurel Jul 21, 2025, 7:49 AM

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problem isnt the correctly handling the animations both on the gpu and cpu.

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GPU is the easier one because its straight forward but the CPU is a bit trickier because how gltf choose to do things

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My pain in the but is just book keeping the data

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one instance is alright

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problem becomes what if there are two or more instances

small osprey Jul 21, 2025, 7:52 AM

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do what you're doing for one instance but two or more times heee

merry laurel Jul 21, 2025, 8:01 AM

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https://tenor.com/view/bait-gif-20369681

Tenor

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Why dont you add animated models into your renderer also heee

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so you can suffer with me

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@small osprey froge_evil

small osprey Jul 21, 2025, 8:10 AM

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nahhhhhhh

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cutecatNE

merry laurel Jul 21, 2025, 8:10 AM

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https://tenor.com/view/old-man-talking-to-gorilla-man-discuss-gorilla-man-talk-to-monkey-man-talk-to-gorilla-meme-man-monkey-chat-meme-gif-27280695

Tenor

merry laurel Jul 21, 2025, 8:58 AM

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Hmm. I will stash the code and focus on some refactoring and clean up

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Would be more beneficial for me

merry laurel Jul 21, 2025, 11:31 AM

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This is me at work. Had been compiling for 4 hours

small osprey Jul 21, 2025, 11:37 AM

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you need a 5995wx froge_love

merry laurel Jul 21, 2025, 11:47 AM

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I gave a task to the IT department to dig out something more powerful

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They are essentially paying me for scrolling

merry laurel Jul 21, 2025, 12:00 PM

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small osprey you need a 5995wx <:froge_love:1105211408255295624>

Sounds too specific. Is it what you have in epic games? cutecatNE

small osprey Jul 21, 2025, 12:01 PM

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yeah they sent one over on friday KEKW

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so i've been setting up my dev environment again today

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the clone just finished froge_love

merry laurel Jul 21, 2025, 12:01 PM

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Damn jealous

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I am running on Intel xeon from 2014

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It has only 4 threads KEKW

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My friend who does frontend was given a better computer than me who deals with abandoned project in C++ with 50+ dependencies

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Configuration failed. 2 hours of compiling went down the drain

small osprey Jul 21, 2025, 12:09 PM

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ouch

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no incremental?

merry laurel Jul 21, 2025, 12:13 PM

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small osprey no incremental?

Yeah there isn't any incremental configuration of the cmake project

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There is a cmake framework that is over engineered and nobody knows it and for some reason it forces clean rebuilds for configuration

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Spent 3 days debugging it with cmake debugger but it's utter mess so we left it be.

small osprey Jul 21, 2025, 12:16 PM

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wtf

merry laurel Jul 21, 2025, 12:19 PM

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I didn't mention it took a week to figure out how to build this thing

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Currently I am adding some driver support and encountered some bug with handling interlaced video formats. So we will force only progressive but that simple change is failing a build somehow. 🙂 🔫

proud marten Jul 21, 2025, 1:23 PM

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merry laurel GPU is the easier one because its straight forward but the CPU is a bit trickier...

ah yeah its weird

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lmk what you end up doing

merry laurel Jul 21, 2025, 1:54 PM

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proud marten lmk what you end up doing

It won't be anything special KEKW

merry laurel Jul 21, 2025, 8:33 PM

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I am doing some refactoring to my whole codebase

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while listening to this banger:
https://www.youtube.com/watch?v=SETnK2ny1R0

YouTube

Espen Sande Larsen - Topic

Refactor

Provided to YouTube by The Orchard Enterprises

Refactor · Espen Sande Larsen

Refactor

℗ 2019 Espen Sande Larsen

Released on: 2019-01-17

Producer: Espen Sande Larsen

Auto-generated by YouTube.

▶ Play video

merry laurel Jul 22, 2025, 8:22 PM

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I am moving some code around so its little bit more readable. Tomorrow I will continue with animations hopefully

proud marten Jul 22, 2025, 11:17 PM

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merry laurel while listening to this banger: https://www.youtube.com/watch?v=SETnK2ny1R0

banger

merry laurel Jul 23, 2025, 7:03 AM

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I just learnt the build system at work is not deterministic

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https://tenor.com/view/flipsdesk-gif-5547444055233225754

Tenor

pale vortex Jul 23, 2025, 7:06 AM

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We must learn to embrace chaos and use it as fuel for our growth - your coworkers

merry laurel Jul 23, 2025, 7:11 AM

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In no way I am rewriting that mess

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They don't pay me enough to deal with that headache

merry laurel Aug 4, 2025, 6:58 PM

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Born to: Do rendering
Forced to: Rewrite cmake, fix CI and fix 20 years old code

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I decided to put the animation on hold but do other stuff

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Currently I am working on SSAO because I dont want to dabble in GTAO or RTAO yet

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After that some light culling fun

merry laurel Aug 4, 2025, 8:55 PM

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we have some poor mans AO going on

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took longer that I would like because I forgot I had normals in world space KEKW

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Tomorrow light culling rabbit hole begins

proud marten Aug 4, 2025, 9:42 PM

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merry laurel we have some poor mans AO going on

thats pretty

summer sigil Aug 4, 2025, 10:26 PM

#

merry laurel we have some poor mans AO going on

Why do you say that? Looks like pretty clean AO

merry laurel Aug 5, 2025, 6:36 AM

#

summer sigil Why do you say that? Looks like pretty clean AO

It looks really clean but I am doing 26 samples...

merry laurel Aug 5, 2025, 7:45 AM

#

Transparent objects are biting me in the ass. How do I handle SSAO with them and also light culling

#

Clustered will work with them but tiled no way

merry laurel Aug 5, 2025, 8:24 AM

#

First I will implement naive tiled then add zbin to it and then jump to clustered

#

And have option for tiled or clustered in renderer to choose from

#

I found some nice blog about clustered light culling where he uses hashes and scalarized it quite a lot

#

also claims that he lowered worst case from 3.1MB -> 164KB

#

I will have to email him to ask him about some details because the source is not open froge_sad

small osprey Aug 5, 2025, 9:44 AM

#

what's a transparent object?

merry laurel Aug 5, 2025, 9:49 AM

#

small osprey what's a transparent object?

Just a mesh with transparency

small osprey Aug 5, 2025, 9:50 AM

#

what's that cutecatNE

merry laurel Aug 5, 2025, 9:51 AM

#

small osprey what's that <:cutecatNE:1264190120794263633>

Pain

#

https://tenor.com/view/metal-gear-anguish-venom-snake-scream-big-boss-gif-16644725

Tenor

small osprey Aug 5, 2025, 9:51 AM

#

i don't even support alpha cutouts

merry laurel Aug 5, 2025, 9:52 AM

#

I do...

#

It was painful to add

#

Just today some software raster supporting transparent meshes just dropped

#

I have an idea how to do tiled with transparent meshes but it is double the work

#

I wonder if there is some shortcut...

merry laurel Aug 5, 2025, 10:09 AM

#

merry laurel I have an idea how to do tiled with transparent meshes but it is double the work

First one for opaque and masked is going to be usual min and max depth but second one is min depth and near plane

#

Or I just make the shaders for transparent meshes to iterate over all lights

#

So you look at piece of glass -300 fps right there

merry laurel Aug 5, 2025, 2:01 PM

#

merry laurel Just today some software raster supporting transparent meshes just dropped

hmmm

#

lucid unlike every other approach isnt a approximation

#

https://arxiv.org/abs/2405.13364

arXiv.org

LucidRaster: GPU Software Rasterizer for Exact Order-Independent Tr...

Transparency rendering is problematic and can be considered an open problem in real-time graphics. There are many different algorithms currently available, but handling complex scenes and achieving accurate, glitch-free results is still costly.
This paper describes LucidRaster: a software rasterizer running on a GPU which allows for efficient ...

#

Yeah I am not implementing it. I will cope with my WBOIT for now

merry laurel Aug 5, 2025, 9:08 PM

#

finally

#

tiled light culling working now hook it to shading and also cull spot lights

small osprey Aug 5, 2025, 11:29 PM

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yooo

#

have you considered going RT-only though cutecatNE

proud marten Aug 5, 2025, 11:56 PM

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merry laurel tiled light culling working now hook it to shading and also cull spot lights

what does light culling do?

small osprey Aug 6, 2025, 12:15 AM

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proud marten what does light culling do?

tell you what gbuffer pixels are affected by lights

#

so you can only eval them for those pixels

#

ofc, what you should be doing is restir with light trees cutecatNE

proud marten Aug 6, 2025, 12:17 AM

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nah just stick to directional lights

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i dont think ive made a point light in over 3 years

merry laurel Aug 6, 2025, 5:48 AM

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small osprey have you considered going RT-only though <:cutecatNE:1264190120794263633>

Yes, I am planning to have ground truth PT but I don't have required math knowledge yet

#

Also I figure out the way to do tiled light culling for transparent meshes

small osprey Aug 6, 2025, 8:36 AM

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merry laurel Yes, I am planning to have ground truth PT but I don't have required math knowle...

you do

#

i wrote my first PT when i was 15 or something

#

didn't know shit

#

but it worked

#

KEKW

merry laurel Aug 6, 2025, 8:38 AM

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small osprey you do

I don't want to RTIOW path tracer 😭

#

I want to understand the math behind MIS and PDFs

#

After the light culling things I want to do PBR so I can have some shiny things in my renderer finally

small osprey Aug 6, 2025, 8:39 AM

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mine was pbrt based lol

small osprey Aug 6, 2025, 8:40 AM

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merry laurel I want to understand the math behind MIS and PDFs

understand how

#

it's super shrimple

#

the book explains it but isn't amazing with it

merry laurel Aug 6, 2025, 8:42 AM

#

I understand some of it

#

But I have no clue how to derive pdf

#

Also I havent touched integrals and derivatives in my life. I will learn about them in 2nd semester if I am correct

#

Its just a thing that I dont want to touch yet

#

There is a lot of stuff that I can do before I touch PT

small osprey Aug 6, 2025, 8:50 AM

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merry laurel But I have no clue how to derive pdf

just multiply the probabilities of whatever paths you take

#

and an integral is the area under a curve

#

and a derivative is the slope of the curve

merry laurel Aug 6, 2025, 8:51 AM

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small osprey and an integral is the area under a curve

thats pretty much what I know KEKW

small osprey Aug 6, 2025, 8:52 AM

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genuinely all you need to know

merry laurel Aug 6, 2025, 8:52 AM

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idk about that KEKW

#

Give me 6-8 months and will get to that

#

Anyway I have todo list of like 80 items to do

#

So I have enough of fun already

summer sigil Aug 6, 2025, 3:43 PM

#

merry laurel Yes, I am planning to have ground truth PT but I don't have required math knowle...

The math is pretty easy if you stick to diffuse-only

#

It's litterly just monte carlo

#

Which is just "sum(f(x) / p(x)) / number of samples"

summer sigil Aug 6, 2025, 3:44 PM

#

merry laurel But I have no clue how to derive pdf

p(x) is just "probability x happened"

#

So if you have 1000 lights and pick one (x) randomly

#

Then p(x) is just 1/1000

#

And since you divide things by p(x)

#

You end up just doing f(x) * 1000

merry laurel Aug 6, 2025, 6:44 PM

#

https://tenor.com/view/crying-emoji-dies-gif-21956120

Tenor

merry laurel Aug 6, 2025, 6:59 PM

#

merry laurel finally

Light culling hooked up to shading. The gains are really nice 4ms -> 0.06ms

merry laurel Aug 6, 2025, 7:40 PM

#

Just added 2.5 culling to make it even better

#

merry laurel Aug 11, 2025, 8:44 AM

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Finished flat bitset for the tiles indices. The cost went down by 32x froge_love

#

Today I am going to add bloom and do some cleanup

#

Also I have been playing battlefield 6. Its quite fun

proud marten Aug 11, 2025, 12:55 PM

#

sounds good

merry laurel Aug 11, 2025, 2:17 PM

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Whoever programmed the file explorer needs to burn in the hell

olive jolt Aug 11, 2025, 2:35 PM

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let me guess, are you still waiting for it to finish listing all the files in a directory that contains lots of files? KEKW

merry laurel Aug 11, 2025, 2:45 PM

#

Also that

#

And tree view is flickering all over the place. So when I click on some folder by that time it will refresh and I will click on the wrong folder

#

Also it takes 70% of my CPU

uncut fulcrum Aug 11, 2025, 4:29 PM

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merry laurel Whoever programmed the file explorer needs to burn in the hell

FilePilot forgelove

merry laurel Aug 11, 2025, 5:46 PM

#

I tried to install it but company did something that prevent it to be downloaded. I will work around it tomorrow

merry laurel Aug 11, 2025, 5:46 PM

#

merry laurel Today I am going to add bloom and do some cleanup

or not because how annoying it is to add...

uncut fulcrum Aug 11, 2025, 6:04 PM

#

It’s a known issue that FilePilot is flagged as a false match

#

Unfortunate tbh

#

The author bought a cert and everything

#

He recently gave a talk about File Pilot at the Better Software Conference https://www.youtube.com/watch?v=bUOOaXf9qIM

#

I wish I could change every file explorer dialog to be File Pilot :(

merry laurel Aug 11, 2025, 6:06 PM

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seen every talk KEKW

uncut fulcrum Aug 11, 2025, 6:06 PM

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oh so you already know about it

#

I paid the $200 for the perma license, it is a great app

merry laurel Aug 11, 2025, 6:06 PM

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yeah I did quite enjoyed it on company time

uncut fulcrum Aug 11, 2025, 6:06 PM

#

well

#

I think it is actually educational

#

so

#

I don't think that's a waste of company time

merry laurel Aug 11, 2025, 6:07 PM

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well that day I was copying files(that took 10 hours) and porting some code

#

I am dealing with horrendous code base. My boss still havent managed to compile it KEKW

uncut fulcrum Aug 11, 2025, 6:09 PM

#

are you working in something related to graphics programming?

merry laurel Aug 11, 2025, 6:10 PM

#

sadly not but they have other projects

#

I am working on OBS like software but television networks

#

and I am trying to revive it from death

uncut fulcrum Aug 11, 2025, 6:14 PM

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You’re the hero they need

merry laurel Aug 11, 2025, 6:15 PM

#

more like sacrificial lamb KEKW

devout niche Aug 11, 2025, 7:03 PM

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merry laurel Finished flat bitset for the tiles indices. The cost went down by 32x <:froge_lo...

You might want to expand 2.5d bitmask for u64. This will help more for lights that have small radius.

merry laurel Aug 12, 2025, 7:22 PM

#

Currently working on PBR....

#

so many bugs

small osprey Aug 12, 2025, 7:27 PM

#

sparkly

merry laurel Aug 12, 2025, 7:29 PM

#

yeah...

#

diffuse part of bdrf is nice but specular one is.....

merry laurel Aug 12, 2025, 9:17 PM

#

its working? 👀

merry laurel Aug 19, 2025, 8:25 PM

#

Progress is stupidly slow. I played little bit with Jolt. Also I looked into my compile times if it could be little bit better. sol2 takes 10 seconds to compile for my renderer basically of half my whole compile time.
I am tired from my job. Dealing with with terrible codebase.

allocating 8 bytes fails so I crash inside std::map
just calling destructor crashes the program. It has nothing to do with the code inside the destructor
stuff gets magically loaded from dlls using uuids so I have to seach for them like for the ancient city of Atlantis when I crash inside that code
missing debug symbols and debugger completely gives up on debugging
logger not logging. Had to use OutputDebugStringW from win api
string passed into a function as const has it contents changed even tho function does just a simple comparison with the string
specific hw pcie card refuses to work with the program but works fine with vendors program also the same card works in other machine with same drivers and my program just fine
vendors documentation being utter dogshit when I googled the issue I found only one result
std::filesystem functions crashing because they want to

uncut fulcrum Aug 19, 2025, 10:15 PM

#

having to use OutputDebugString and not being able to log I think, I could be mistaken, is a requirement when the application is not a Console application, that is it has a WinMain entry point and not a main and in that case printf doesn't work, but you could log into a log file or have some other indirection?

#

what is this about uiuds and dlls?

spring sandal Aug 20, 2025, 6:37 AM

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You could pull spdlog if that's an option, you can configure it to log into file and console

merry laurel Aug 20, 2025, 6:42 AM

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spring sandal You could pull spdlog if that's an option, you can configure it to log into file...

The library had its own logger but it just didnt work in the particular piece of code for some unknown reason

merry laurel Aug 20, 2025, 6:43 AM

#

uncut fulcrum having to use OutputDebugString and not being able to log I think, I could be mi...

Logger writes a log file but for some reason it refused to do so in a particular piece of code

merry laurel Aug 20, 2025, 6:44 AM

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uncut fulcrum what is this about uiuds and dlls?

Most of the code is behind interfaces and those have __declspec(uuid(...)) and when I create a com pointer it grabs implementation from the registered dll with that uuid

merry laurel Sep 2, 2025, 4:10 PM

#

One day later.

#

I am working on some plumbing to get RT working. I would to have some RT shadows or something even more. I managed to shave off 100MB of VRAM by changing some stuff around

#

Tomorrow I am going into a battle for seminar groups for my college

proud marten Sep 2, 2025, 4:58 PM

#

do radiance cascades

#

one probe per 10cm, consolidated near sufaces

merry laurel Sep 2, 2025, 5:01 PM

#

I want to go DDGI and RTGI route

merry laurel Sep 2, 2025, 5:09 PM

#

merry laurel Tomorrow I am going into a battle for seminar groups for my college

I cant wait that their system is going to crash so many times

proud marten Sep 2, 2025, 5:09 PM

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merry laurel I want to go DDGI and RTGI route

i thought rc could be supplementary to ddgi

merry laurel Sep 2, 2025, 5:11 PM

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proud marten i thought rc could be supplementary to ddgi

they are kind of a hack from what I read

merry laurel Sep 3, 2025, 5:58 PM

#

merry laurel Tomorrow I am going into a battle for seminar groups for my college

The battle is over and I won. I could claim all seminar groups that I wanted before the system crashed

merry laurel Sep 10, 2025, 8:42 PM

#

This thread dying each week.
I was finally in college for some social event it was nice met a lot of people. I was suprised by that not many of them know to program. College is going to start next week...
Now I work part time but I have still some freelance web dev stuff where I am forced to do design bleakekw
Anyway something positive I managed to get rid of boost from codebase at work and I might be able to attend GPC.

#

I will have to take a plane because there is no way I am going to spend 17 hours in a train

uncut fulcrum Sep 10, 2025, 9:04 PM

#

I like trains

merry laurel Sep 10, 2025, 9:09 PM

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uncut fulcrum I like trains

me too but 17 hours compared to 1.5 hours with plane 😭

uncut fulcrum Sep 10, 2025, 9:10 PM

#

I hate flying so much

#

I think flying is actually safer than a train

merry laurel Sep 10, 2025, 9:10 PM

#

I still will have to travel with train to get to main city that will take 3 hours...

#

I flew in plane at least 40x by now

#

its alright

uncut fulcrum Sep 10, 2025, 9:11 PM

#

I'm a big person

merry laurel Sep 10, 2025, 9:11 PM

#

also the noise doesnt bother me because I am deaf 😛

merry laurel Sep 10, 2025, 9:11 PM

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uncut fulcrum I'm a big person

same here

#

I always hit my head on the plane door....

uncut fulcrum Sep 10, 2025, 9:12 PM

#

planes aren't noisy but sometimes they make a rumbling noise and my lizard brain doesn't like unexpected noises when 30K feet in the air

#

I know logically the planes are safe, but a part of me just doesn't want to be there

merry laurel Sep 10, 2025, 9:13 PM

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yeah tin can in 30K doesnt sound right KEKW

uncut fulcrum Sep 10, 2025, 9:14 PM

#

you are deaf?

merry laurel Sep 10, 2025, 9:14 PM

#

legally yes

#

less than 7%

uncut fulcrum Sep 10, 2025, 9:14 PM

#

I see

merry laurel Sep 10, 2025, 9:14 PM

#

but I have implant that allows me to hear "normally"

uncut fulcrum Sep 10, 2025, 9:15 PM

#

oh I'm glad about that

merry laurel Sep 10, 2025, 9:16 PM

#

yes. I am glad to my parents that fought doctors without them I wouldnt talk normally or even hear

merry laurel Sep 12, 2025, 10:59 AM

#

I hate VLC player so much. Why it behaves differently depending on the video. It deserves a spot in the hell

proud marten Sep 12, 2025, 4:05 PM

#

thats why its a good thing the newer windows media player supports barely any file types

uncut fulcrum Sep 12, 2025, 4:13 PM

#

yeah ditched VLC

#

I use https://mpv.io/ instead

#

it lacks a lot of features and it's mostly keyboard shortcut driven that you have to learn

#

but it's really fast, that was my issue with VLC, just how slow it was

merry laurel Sep 12, 2025, 4:43 PM

#

merry laurel I hate VLC player so much. Why it behaves differently depending on the video. It...

This is related to the product that I am working on at work. It's bleaker_kekw

#

I found some interesting UB

small osprey Sep 12, 2025, 10:01 PM

#

uncut fulcrum I think flying is actually safer than a train

I think not actually

uncut fulcrum Sep 12, 2025, 10:07 PM

#

this is a matter of fact, not opinion, and the numers are what they are

#

https://www.bts.gov/content/transportation-fatalities-mode

small osprey Sep 12, 2025, 10:11 PM

#

I'm not really gonna trust american numbers on rail lol

uncut fulcrum Sep 12, 2025, 10:11 PM

#

#

k

#

you can believe whatever you want I guess

small osprey Sep 12, 2025, 10:15 PM

#

dude american rail is from the 1880s or something

#

and no one uses it

#

it's irrelevant KEKW

merry laurel Sep 12, 2025, 10:19 PM

#

☝️

uncut fulcrum Sep 12, 2025, 10:23 PM

#

shrug

small osprey Sep 12, 2025, 10:28 PM

#

I'm open to stats, but just... relevant ones cutecatNE

uncut fulcrum Sep 12, 2025, 10:28 PM

#

fair

#

I have died zero times on trains or planes so they're 100% safe

#

so far anyway

small osprey Sep 12, 2025, 10:30 PM

#

lmao

#

I can't find shrimilar stats from the EU

uncut fulcrum Sep 12, 2025, 10:39 PM

#

then you are legally required to accept my data

frigid breach Sep 12, 2025, 10:48 PM

#

proud marten Sep 12, 2025, 10:48 PM

#

uncut fulcrum I think flying is actually safer than a train

how many of the train deaths in the US are bill clinton drug traficking coverups though

uncut fulcrum Sep 12, 2025, 10:51 PM

#

frigid breach

way to fence sit and try to please everyone

#

take a stance

frigid breach Sep 12, 2025, 10:52 PM

#

just sharing the data i found 😂

#

😭😭

uncut fulcrum Sep 12, 2025, 10:53 PM

#

jk

#

dont' be sad sadcat

pale vortex Sep 12, 2025, 11:07 PM

#

jesus bjorn, you made dodo sad, how could you

#

dodo is now sad

#

because of what you did

#

which was to make him sad

#

https://tenor.com/view/monkey-anguish-despair-gif-13915908866750092639

Tenor

#

anyway let me see what the discussion was about

#

well when you think of trains in the US you think of spaghetti western movies and train robberies

#

when you think of trains in europe you think of the orient express

#

now as to which one is safer it's kind of irrelevant because the riskiest thing you can do is go outside your house have you seen how some people drive

#

anyway statistics are kinda silly, like ok only one event in 10.000.000 will result in you dying in a plane accident ok fine whatever

but is there a way to ensure that said event won't happen to you, there isn't

#

so why take unnecessary risk

small osprey Sep 12, 2025, 11:17 PM

#

pale vortex so why take unnecessary risk

you are taking risk by existing

pale vortex Sep 12, 2025, 11:19 PM

#

some people definitely risk more by existing than by using any kind of transportation yea

small osprey Sep 12, 2025, 11:22 PM

#

sitting in a plane is safer than walking to the grocery store

pale vortex Sep 12, 2025, 11:23 PM

#

yup that's what I said above

#

and sitting in a city is riskier than sitting in a village because of the air pollution affecting your health

merry laurel Sep 12, 2025, 11:24 PM

#

https://tenor.com/view/michael-jackson-eating-popcorn-enjoy-i-like-nom-nom-gif-11040065238845078056

Tenor

proud marten Sep 13, 2025, 12:07 AM

#

proud marten how many of the train deaths in the US are bill clinton drug traficking coverups...

real btw

merry laurel Sep 13, 2025, 12:10 AM

#

proud marten real btw

Go back to daxa triangle froge_yeehaw

#

Use my or lpotricks code that is up to date

merry laurel Sep 14, 2025, 12:28 PM

#

Who the hell decided that we have to learn haskell in college bleakekw

small osprey Sep 14, 2025, 2:43 PM

#

why wouldn't you

merry laurel Sep 14, 2025, 3:00 PM

#

small osprey why wouldn't you

well its mandatory in the first semester KEKW
It is going to filter out a lot of people

merry laurel Jan 22, 2026, 9:52 PM

#

I am somehow alive and survived first semester. Sadly second semester starts in about 4 weeks bleakekw
Some subjects and exams were annoying but passed. Haskell was amazing especially the professor who is also the dean. Putting gen-Z memes into exams(67, skibidi) KEKW

Back to the project. I progressed a bit. I added ray tracing, fixed and and optimized bunch of stuff. Only thing that annoys me is mesh shaders where nsight tells 50% of threads do nothing.

The bad news is that I am rewritting the whole thing because I did bad design choice and retro actively fixing is more painful than just writing the code.

uncut fulcrum Jan 22, 2026, 10:06 PM

#

Haskell can be fun

#

you added RT?

merry laurel Jan 22, 2026, 10:07 PM

#

I did

uncut fulcrum Jan 22, 2026, 10:07 PM

#

what kind?

#

like SBT and a full pipeline?

merry laurel Jan 22, 2026, 10:07 PM

#

Just HWRT with simple pipeline to test it

#

I wanted it mainly for shadows since my rendering is already stupidly fast

uncut fulcrum Jan 22, 2026, 10:07 PM

#

yeah shadows are the gateway drug

#

then I get addicted and wanted to use it for everything

merry laurel Jan 22, 2026, 10:08 PM

#

Yeah. I do enjoy the struggle that raster comes in

#

making it fast

#

did the whole nanite thing KEKW

uncut fulcrum Jan 22, 2026, 10:09 PM

#

wow

#

so like a mesh shader to draw the distant geometry that takes up just a few pixels nanite thing? I don't know a lot about it

#

that might have been nonsense

merry laurel Jan 22, 2026, 10:10 PM

#

mesh shaders are used for less than 10% of the geometry of the screen

#

everything else is SW raster in compute

uncut fulcrum Jan 22, 2026, 10:11 PM

#

oh

merry laurel Jan 22, 2026, 10:11 PM

#

only masked and transparent objects are forced to go through mesh shaders

uncut fulcrum Jan 22, 2026, 10:11 PM

#

why aren't using the graphics pipeline? why is it a software raster?

merry laurel Jan 22, 2026, 10:11 PM

#

because I am faster than graphics pipeline KEKW

#

the triangles are small enough that rendering then in graphics pipeline is slower than SW raster in compute

uncut fulcrum Jan 22, 2026, 10:12 PM

#

hrmmm, I am thinking of doing software raster in cuda

merry laurel Jan 22, 2026, 10:12 PM

#

you can steal my code but its limited with size of the triangle

uncut fulcrum Jan 22, 2026, 10:13 PM

#

oh you were talking about just the nanite

merry laurel Jan 22, 2026, 10:13 PM

#

yeah my project for high school thesis KEKW

#

Only thing that I am missing is bvh culling

#

but thats just pain

#

also I wanted to talk about vcc. I am thinking about picking it up as side project and make it somewhat usable. I know you worked a bit on it? Do you have some pointers or just pray in gob?

uncut fulcrum Jan 22, 2026, 10:15 PM

#

I have yet to see gob approve someone else's PR

#

fwiw

#

you might fork it

merry laurel Jan 22, 2026, 10:15 PM

#

I will just fork it 💀
And then open PRs. So I will just push through

uncut fulcrum Jan 22, 2026, 10:15 PM

#

idk gob's attention to vcc is limited by his preference for working with students I think, but I can't read his mind

#

vcc is amazing however I really like it

#

I learned a lot from it

merry laurel Jan 22, 2026, 10:16 PM

#

I got pissed off by slang. Its unbelievable how bad it is

supple cliff Jan 22, 2026, 10:17 PM

#

merry laurel I am somehow alive and survived first semester. Sadly second semester starts in ...

its normal. Mesh shaders cant really reach over 40 ish percent occupancy

#

on nvidia

merry laurel Jan 22, 2026, 10:17 PM

#

fuck me

supple cliff Jan 22, 2026, 10:17 PM

#

nvidia heavily keeps the sms open for pixel work

merry laurel Jan 22, 2026, 10:17 PM

#

so no hope?

uncut fulcrum Jan 22, 2026, 10:17 PM

#

it wasn't really usable for a full project, also I think drivers don't actually support all valid novel spirv based on all the crazy stuff slang is doing and running into

#

so you might get stuck

supple cliff Jan 22, 2026, 10:17 PM

#

with 40% they should already be very fast

#

vertex shaders also dont go much higher but they also just run slower

merry laurel Jan 22, 2026, 10:18 PM

#

goddamit

supple cliff Jan 22, 2026, 10:18 PM

#

in tido bistro rasterizes in 180us with twopass and everything at 1440p on a 4080

merry laurel Jan 22, 2026, 10:18 PM

#

because if they would be at 80% I would be happy but they are like at max 40%

#

just sleeping

uncut fulcrum Jan 22, 2026, 10:18 PM

#

why is that

supple cliff Jan 22, 2026, 10:18 PM

#

occupancy is not all anywauy

#

50% is already enough most of the time

#

esp on nvidia

merry laurel Jan 22, 2026, 10:19 PM

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I have my 6x6x6 bistro scene that renders quite fast but it is choking on masked materials

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masked materials exlusively use mesh shaders

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I was hoping that there is something that I can do

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but with these news. I can go cry

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I think I will have to add texture sampling into my raster code

uncut fulcrum Jan 22, 2026, 10:22 PM

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I just wrote a bilinear filter thing for my own handrolled cuda sampler

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works idk

merry laurel Jan 22, 2026, 10:23 PM

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https://github.com/lukasino1214/foundation/blob/master/src/shader_library/software_rasterization.slang#L36-L165

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Cant wait to modify this hell

merry laurel Jan 22, 2026, 10:24 PM

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uncut fulcrum it wasn't really usable for a full project, also I think drivers don't actually ...

As long it works on my GPU I dont care. I dont AMD in high regard. Did you encounter some big problems in vcc?

uncut fulcrum Jan 22, 2026, 10:24 PM

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yes

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storage images didn't work

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I had to roll that myself

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RT pipeline stuff didn't work

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like hit shaders etc

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there's been some PRs it might work now

merry laurel Jan 22, 2026, 10:25 PM

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gob did something with storage images

uncut fulcrum Jan 22, 2026, 10:25 PM

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yes since then

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it was easy to do, I just had to learn LLVM IR first

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and how the whole architecture thing was

merry laurel Jan 22, 2026, 10:26 PM

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I will try to make stuff work and I need to get some TODO list from devsh

uncut fulcrum Jan 22, 2026, 10:26 PM

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there was like a month where all I did was vcc stuff and I decided I rather not make vcc my full time hobby

merry laurel Jan 22, 2026, 10:26 PM

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yeah I can see why KEKW

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I watched it how you fought vcc but I dont remember all of it

uncut fulcrum Jan 22, 2026, 10:27 PM

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then I went back to slang and I hated it so much I gave up and now I write CUDA

merry laurel Jan 22, 2026, 10:27 PM

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based

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vcc is going to be a side project for now just try slowely push it to the finish line

uncut fulcrum Jan 22, 2026, 10:28 PM

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I will subscribe to your updates on that as I would very much like a vcc that just works

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I'll come back to vulkan

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I think a lot of my kernel code would easily translate to vcc

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like probably all of it, even the vector type is the same format

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the optix stuff wouldn't

merry laurel Jan 22, 2026, 10:31 PM

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I cant promise much. I am bit scattered around 2 projects, work and college that wont be a thing for 4 weeks

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I am helping out zilver for #1045842603372974080

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but the rewrite of foundation can wait so I should have time for vcc

proud marten Jan 22, 2026, 11:56 PM

#

merry laurel I am somehow alive and survived first semester. Sadly second semester starts in ...

https://tenor.com/view/the-return-of-the-king-lord-of-the-rings-ro-tk-title-card-gif-22191928

Tenor

merry laurel Jan 26, 2026, 7:10 PM

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Bit of a progress. Stuff actually loads. I switched to using wuffs instead of stb. Enjoying the minimum 30% faster loading. Also found the meshoptimizer vertex fetch remap breaks on new sponza so that is lovely.

merry laurel Jan 29, 2026, 10:22 PM

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Stuff will be barebones for some time until I get the animation stuff working. Added multi threading few days ago so compiling pipelines and loading assets got faster. Today I was bikeshedding fast slot map implementation for my asset manager that needs to be index stable but still allow removing of the elements

merry laurel Feb 2, 2026, 7:38 PM

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A lot of people are staring my project frogeheart . I just decided to give up on animation. Its just too annoying but I will make preparations to comeback to it later.
I will continue with my rewrite. I am a lot of more happier that I can iterate much faster.

merry laurel Feb 2, 2026, 9:05 PM

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host image extension is quite nice

merry laurel Feb 2, 2026, 9:31 PM

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okay its not that nice

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it is really convenient but for some reason it causes larger lag spikes than manually handling the upload with staging buffers

merry laurel Feb 3, 2026, 3:02 PM

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crunchy textures brought you by ray tracing KEKW

merry laurel Feb 3, 2026, 6:57 PM

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got it working together with masked materials

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ray cones my beloved

supple cliff Feb 3, 2026, 9:30 PM

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i should use raycones lol

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tho i dont have anything that needs them really yet

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pgi would still benefit from it

merry laurel Feb 3, 2026, 9:37 PM

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supple cliff tho i dont have anything that needs them really yet

path tracing mode would really benefit instead of the hard coded derivatives KEKW

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I have still some bug in the code but it works on 99%.

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I will mainly use AS for shadows and later GI but I wanted to get ray tracing working with everything for the first time

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Next thing I want to add is lights with culling back

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I would like to explore the idea of using rasterization for culling the lights

merry laurel Feb 6, 2026, 9:35 AM

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be me
arrive to office
join coffee chit chat
come to your desk
notebook doesn't turn on
go home
Just in a span of 30 minutes. I hope your day goes better than mine

merry laurel Feb 7, 2026, 7:59 PM

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so many message boxes that it throws really dark shadow KEKW

supple cliff Feb 7, 2026, 9:50 PM

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lmao

merry laurel Feb 8, 2026, 4:58 PM

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RT shadows are sooo nice

wanton thunder Feb 8, 2026, 5:03 PM

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🔥

merry laurel Feb 9, 2026, 8:25 PM

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This might be interesting for you @supple cliff . I am playing around descriptor heaps in daxa. I am almost at the finish line but for some reason I have some bugs where images are blown up like srgb was applied twice and sampler addres mode is just broken.

supple cliff Feb 9, 2026, 8:31 PM

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interestiing

merry laurel Feb 9, 2026, 9:01 PM

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supple cliff interestiing

Knock yourself out. The implementation is meh the code could be bit better. You can try it out on tido. If you spot some bug I would appreciate it.
https://github.com/lukasino1214/Daxa/commit/1962a3f92fed5b2db81987559191a9435a54877e

GitHub

WIP descriptor heap · lukasino1214/Daxa@1962a3f

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I implemented it as a implicit feature where it will prefer using the descriptor heap when available

supple cliff Feb 9, 2026, 9:57 PM

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I think it should be a full replacement

merry laurel Feb 9, 2026, 10:00 PM

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supple cliff I think it should be a full replacement

thats the plan but for now as I am trying to implement it so I left it as a option. Are you fine with cutting out the support. From what I know only nvidia has the extension?

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Just checked gpu info there isnt a singe mention of AMD gpu in sight

merry laurel Feb 9, 2026, 10:25 PM

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2 line change froge_bleak

supple cliff Feb 9, 2026, 10:30 PM

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nice

merry laurel Feb 9, 2026, 10:31 PM

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supple cliff nice

Do you want to add it to daxa this week or we wait?

supple cliff Feb 9, 2026, 10:46 PM

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merry laurel Do you want to add it to daxa this week or we wait?

nonono i ll have to wait

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i have to test on amd

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so we gotta wait for their drivers 🙂

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hm

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i guess if its an implicit feature

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it can go in earlier

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but i have to read up on it first and do some tests before i can even review your code 😄

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i have not played iwth desc heaps yet

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I will look at it this weekend

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but right now i am focussed on removing old shit from daxa so not much brain bandwidth left for new things

merry laurel Feb 9, 2026, 10:57 PM

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I will leave it in my fork but once the time comes around to implement it. It could be used as a reference.
I am not proud of that code tbh. Bunch of ifs and elses and I am not sure if I got everything right. There is basically zero references online

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I could prepare version where it replaces the descriptor indexing but that is up to you

supple cliff Feb 9, 2026, 11:01 PM

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having your impl is the best reference I could ask for 😄

merry laurel Feb 9, 2026, 11:02 PM

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nice foot gun

businessman-sitting-at-desk-pointing-shotgun-at-foot.png

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had to also update slang because the code gen was just terrible

supple cliff Feb 9, 2026, 11:03 PM

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yea

merry laurel Feb 9, 2026, 11:04 PM

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if you are cleaning up the codebase. Is there any that could be done with enabling extensions/features and properties. Because it is god awful for first time seeing it. You to juggle around stuff in 3 different places

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rest of the codebase is nice. Its been awhile since I was digging inside it to fix some stuff

supple cliff Feb 9, 2026, 11:07 PM

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the feature stuff is already the cleanest possible i think

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there just is no way to untangle it further

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i tried a bunch of times 😄

merry laurel Feb 9, 2026, 11:08 PM

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I could give it a shot

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this part of vulkan is annoying I do agree

merry laurel Feb 11, 2026, 4:52 PM

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supple cliff so we gotta wait for their drivers 🙂

AMD released new drivers? 👀
https://vulkan.gpuinfo.org/listdevicescoverage.php?extension=VK_EXT_descriptor_heap&platform=all

uncut fulcrum Feb 11, 2026, 6:42 PM

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is an amd driver update rare?

merry laurel Feb 11, 2026, 6:49 PM

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uncut fulcrum is an amd driver update rare?

amd is amd...

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their sw department is...

merry laurel Feb 11, 2026, 9:29 PM

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Just removed gltf specific stuff from my code and hid it behind a thin abstraction. Experimented with ufbx but the api pales in comparison to fastgltf.
Also added texture compression so windows doesnt die when I play youtube video in background. froge_love

supple cliff Feb 12, 2026, 7:57 PM

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@merry laurel did you use the new debug ui yet?

merry laurel Feb 12, 2026, 8:04 PM

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supple cliff <@223771039648186378> did you use the new debug ui yet?

I added it but didnt really play with it yet.

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I was debugging that dangling pointer thing

supple cliff Feb 12, 2026, 8:06 PM

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no more renderdoc

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daxa build in debugging supreme

merry laurel Feb 12, 2026, 8:07 PM

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I havent used renderdoc like a year

supple cliff Feb 12, 2026, 8:07 PM

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same

merry laurel Feb 12, 2026, 8:07 PM

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printf go brrr

supple cliff Feb 12, 2026, 8:07 PM

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indeed

merry laurel Feb 12, 2026, 8:08 PM

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going to play with the ui when I will be adding the nanite rendering back

#

hopefully I can manage to get rasterization to work on both queues in parallel

merry laurel Feb 13, 2026, 2:32 PM

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oh boy the difference is just insane

#

I am talking about the alpha tested textures such as leaves on the trees

supple cliff Feb 13, 2026, 2:44 PM

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merry laurel hopefully I can manage to get rasterization to work on both queues in parallel

should work easily with new taskgraph

supple cliff Feb 15, 2026, 10:04 PM

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i will look if it makes sense for me to already integrate the desc heap while also having the old desc set code at the same time

merry laurel Feb 15, 2026, 11:12 PM

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amd just started supporting the heaps but it is really up to you to support it.

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if you meaninfully abstract the functions then switching the underlying descriptor system is easy. In my implementation I had to do bunch of if statements because I didnt really want to change the code

merry laurel Feb 22, 2026, 1:09 PM

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Some news. Semester just started and it is way worse than previous one. Not because of the difficultly of the classes but its just total unorganised mess. bleakekw

#

Also managed to move my code to gpu driven again.

#

never again

proud marten Feb 22, 2026, 3:08 PM

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merry laurel Some news. Semester just started and it is way worse than previous one. Not beca...

wdym?

#

in what ways is it unorganized?

merry laurel Feb 22, 2026, 3:16 PM

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proud marten in what ways is it unorganized?

each class is organised differently. Information is scattered or just straight up not there. We learned most stuff in the first lecture.
Recordings of the lectures are also just 🤷‍♂️ Thanks to the fact there is reconstruction of the half of our faculty that means we have lectures in other collages.

proud marten Feb 22, 2026, 4:14 PM

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Yikes

merry laurel Feb 28, 2026, 6:09 PM

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13ms -> 4.6ms

#

https://tenor.com/view/ironman-tony-stark-forge-gif-10677756

Tenor

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This is without SW raster

#

For my next trick I will need to enable some features and a extension?

proud marten Mar 1, 2026, 3:18 AM

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forgefumbsup

merry laurel Mar 10, 2026, 2:59 PM

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Currently doing some sidequests before diving into VSM. Got pissed off by trying to get sw raster working

#

some tonemapping and froyoks bloom. Next thing on my list will be GTAO with visibility masks

proud marten Mar 10, 2026, 3:39 PM

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this looks awesome, I'm glad youre taking your time

merry laurel Mar 10, 2026, 9:09 PM

#

ssao + auto exposure

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it is really nice to do these side quests.

merry laurel Mar 11, 2026, 7:56 PM

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the difference between gtao with visibility masks and SSAO is interesting

merry laurel Mar 11, 2026, 9:05 PM

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I have some bugs in it

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https://tenor.com/view/caseoh-desk-slam-caseoh-rage-caseoh-fall-guys-caseoh-caseoh-earthquake-gif-17650930799246419629

Tenor

supple cliff Mar 11, 2026, 9:43 PM

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i feel that so much

merry laurel Mar 18, 2026, 6:50 PM

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got slug text rendering working

#

I did it as a treat after 2 days of hard work organising event for 500 people

#

next thing is virtual shadow maps

merry laurel Mar 22, 2026, 9:36 PM

#

merry laurel next thing is virtual shadow maps

Or not because I got derailed because I found GP job 10 minutes from my house. I am currently bikeshedding my CV and READMEs

merry laurel Mar 25, 2026, 7:35 PM

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The fun begins

proud marten Mar 26, 2026, 6:55 PM

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you made a debugger before the actual feature? oh ye of little faith

merry laurel Mar 26, 2026, 7:21 PM

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proud marten you made a debugger before the actual feature? oh ye of little faith

Let me cope with this. VSM really needs debugging because the whole thing is mess 🥀

proud marten Mar 26, 2026, 8:53 PM

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Yeah, I'm just pulling your leg. People here use VSM as a synonym for hell

vernal blade Mar 26, 2026, 10:00 PM

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They are very much not worth the effort

#

But fun project to do

merry laurel Mar 26, 2026, 10:03 PM

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vernal blade They are very much not worth the effort

what do you mean by not much worth the effort?

#

I am hoping to cache RT shadows

vernal blade Mar 26, 2026, 10:05 PM

#

I mean that regular cascades sms will do

vernal blade Mar 26, 2026, 10:06 PM

#

merry laurel I am hoping to cache RT shadows

As in, you want to raytrace the pages?

merry laurel Mar 26, 2026, 10:06 PM

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yep

#

much less annoying then dealing with rasterization

vernal blade Mar 26, 2026, 10:06 PM

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Yes, that is smart

#

I should do that too

merry laurel Mar 26, 2026, 10:07 PM

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I tried doing soft shadows with RT shadows that I have currently and the perf went down really fast. So hoping the VSM will help me with that

vernal blade Mar 26, 2026, 10:12 PM

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Now I think you got it backwards

#

They cannot do that

merry laurel Mar 26, 2026, 10:14 PM

#

At least do some approximation like PCSS

vernal blade Mar 26, 2026, 10:15 PM

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Well that you can do, but you cannot store "soft shadows" in vsms

#

You'd need the inverse of vsms

#

A sort of surface cache

north helm Apr 25, 2026, 5:52 AM

#

@merry laurel could you share your article again please ?

#Foundation - My adventure through Graphics Programming