Foundation - My adventure through Graphics Programming

[paper ore]

i think jaker was able to extract the hotel

[merry laurel]

I have some HW to export it in reasonable time

[north helm]

i tried to multithread my texture loading using std::async so unlimited threads

it bombed my ram

[paper ore]

i have a 5950x, 64gb ram

blender was pretty much doing nothing the whole time

[merry laurel]

I will make from my renderer glorified blender

I looked into usd format for importing it and it really sucks

The API reminds you of obj

[north helm]

average caldera github repo

[merry laurel]

all examples in python

I cant imagine python choking on caldera

[paper ore]

we need sean to make fastusd

or someone else on the server

its a "good first issue" 😄

[merry laurel]

In the mean time until final exam. I will be writing the blog and making from this project a "game engine". So some material editing, ecs, scripting, etc..

But wont be working on rendering

Past few days I have been updating all dependecies to be up to date

[paper ore]

glEngine 1.0, check

[merry laurel]

And wanted to add live++ but sadly of missing pbd I am not able to hot reload my files since every translation unit is using those libraries without pbds

[north helm]

what is that ?

[paper ore]

i doubt you need livepp for the engine

[merry laurel]

For dev its nice

[paper ore]

a hot reload mechanism for cpipi

[merry laurel]

Its nice to have at least

[paper ore]

it also costs quite a bit of money

[north helm]

huh

[merry laurel]

major pain is imgui/UI

[north helm]

i dont understang the point, what does it releads ?

[merry laurel]

your program

it patches your c++ code into executable

[north helm]

this is some sort of c++ scripting ?

[merry laurel]

so you change text in imgui::text and you will see it change in real time

[merry laurel]

yes

but for whole program

[north helm]

OOOOHHH

[paper ore]

https://liveplusplus.tech/

[merry laurel]

I am rn on 30 day trial

But I will get my free licence 😈

[north helm]

i was on this page but not understanding the point x)

[merry laurel]

I need sort out my flecs because its spending 10ms iterating over all entities 😭

[paper ore]

watch the video 🙂

[north helm]

i have it now

looks funny

[merry laurel]

And about the blog about my nanite thingy. First I will write it in english to get input from you frogs and then translate it to czech to give to my hs

[paper ore]

?

[merry laurel]

😉

[paper ore]

ah i didnt see that

[north helm]

and to french to be a chad ☝️ 🤓 🇫🇷

[merry laurel]

no you get it google translated

[north helm]

😔

is your thing more advanced than jglrxavpok's blog ?

[merry laurel]

hmmm, same-ish level or more

But I will yap about it more

[north helm]

have u tried nanite rt ?

[merry laurel]

I have async loading and texture and mesh streaming

[merry laurel]

I will after final exams

I not doing any rendering until then

[north helm]

cant wait to read your thing

[merry laurel]

I will do some small amount to be gltf compliant

[paper ore]

all you nanite guys should write one comprehensive guide on nanite, for the graphics programming blorg

[merry laurel]

I have to do one

[north helm]

lets get you invited to siggraph

[merry laurel]

to graduate XD

[merry laurel]

Idk about that but free 5090 would be nice

Acerola was given 4090 for free from Nvidia

[north helm]

you presenting nanite with your brother screaming behin you 💀

[merry laurel]

Already fixed with new microphone

[north helm]

oh lets go

[merry laurel]

I have studio microphone

With the new setup

[merry laurel]

About that 100%. Everybody does it differently little bit. Mr. SparkyPotato has fancy bvh culling, Jasmine fancy meshlet lods, me I think fastest rendering(I hope so because I got rid of indirection).

Other than that we should have same-ish impl

Also not to forget lpotrick for fancy geometry pipeline and hiz generation. LVSTRI for being first frog working on nanite

[paper ore]

exactly

i dont want android device level fragmentation

[merry laurel]

[small osprey]

what indirection did you get rid of

[merry laurel]

how do you get your meshlet instance data to fetch other data to render?

through indirection like a queue which has indices to a some buffer?

or pointers?

[small osprey]

i store instance, meshlet byte offset pair

so it loads the instance data and then offsets the mesh data pointer with the meshlet byte offset

only three indirections

id -> queue -> instance -> meshlet

[merry laurel]

I directly get the instance

[small osprey]

how

[merry laurel]

I write out instances into a buffer and in rendering just shrimple index to it to get it back

payload.index is group id

@small osprey are you here? 😄

[small osprey]

where does the payload come from

[merry laurel]

task shader

but you could think of it as group index

nothing special

[small osprey]

i think we do the same thing?

your MeshletData is what i store in my queues

[merry laurel]

heh then I missunderstood your code

Its quite hard to read

[small osprey]

idk myshrelf how it works anymore

[merry laurel]

I dont wonder why

[small osprey]

it's basically

let ptr = queue.get(tid);
let instance = push.instances[ptr.instance];
let meshlet = instance.mesh[ptr.meshlet];

where mesh and instances are ptrs

oh and queue

[merry laurel]

I do

let instance push.instances[tid];
let mesh = push.meshes[instance.mesh_index];
let meshlet = mesh.meshlet[instance.meshlet_index];

I immediately get the instance without getting the index/ptr from queue

So I dont wait for the index then instance and then other data

I get the instance and then I load other data

[small osprey]

what's push.instances

equivalent to my queue?

[merry laurel]

nope

thats your instances

[small osprey]

my instances stores transform, mesh pointer, and etc

[merry laurel]

yep same

[small osprey]

what's your mesh then

[small osprey]

is push.instances a ptr to MeshletData

[merry laurel]

yes

[small osprey]

so we do the same thing lol

my Instance stores the transform data and mesh data in it

[merry laurel]

then whats the queue thing

[small osprey]

the queue stores (instance id, meshlet id)

two u32s

[merry laurel]

stupidly confused

[small osprey]

lol

i store

struct NodePointer {
    u32 instance;
    u32 node_offset;
}

in my queue

struct Instance<U : Uniformity = Uniform> {
    Transform transform;
    Transform last_updated_transform;
    Aabb aabb;
    u64 update_frame;
    u8* mesh;
    Vertex* raw_mesh;
    Material<U>* material;
    u32 raw_vertex_count;
    u32 raw_tri_count;
}

and this is my instance

[merry laurel]

So my mesh is your instance, node pointer is my meshlet data

Sort of

[small osprey]

yea

[merry laurel]

So confusing

Everybody does it differently me, you, jasmine, lvstri and lpotrick

[small osprey]

lol

yup

[merry laurel]

https://tenor.com/view/honestly-quite-incredible-drinking-water-underwater-cool-gif-22285702

honestly I will go around the code base rename stuff

because MeshletData sounds stupid also

should be MeshletInstanceData

Rest should be fine

[paper ore]

https://tenor.com/view/reaction-my-honest-reaction-benjammins-mid-thats-mid-gif-12941560756537883316

[merry laurel]

anyway eepy time. My sleep schedule in shambles. Yesterday 4.5h sleep hopefully today 6h of sleep

With actual work/job I would have more free time than school

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

[small osprey]

me when i ignore both school and work to write renderer

[merry laurel]

https://file.io/LqalmofHeWXE

[merry laurel]

@small osprey maybe this will have fixed materials for you

[paper ore]

https://tenor.com/view/doubt-press-x-la-noire-meme-x-button-gif-19259237

[merry laurel]

I worked 9-5 at summer

[paper ore]

yeah, as a kid

[merry laurel]

I am adult

Worked as programmer

[paper ore]

you young whippersnappers have a bit more energy then us old farts

[merry laurel]

then yeah

[paper ore]

you will be tired after your 9-5 soon 😄

[merry laurel]

I would rather be stuck in meeting 9-5 than in school

[small osprey]

lemme try

[paper ore]

that will change too 😛

[merry laurel]

I guess that will change, I will complain but I will have money

[paper ore]

true

thats the only upside

[merry laurel]

with school 8 hours of bs, study after school for week and get nothing

[small osprey]

yeah that works, thanks

[merry laurel]

nice

I stole it year ago here

[small osprey]

lol

[merry laurel]

only thing the textures are 1k

but that wont kill you?

at least I think they are 1k

[summer sigil]

I have a blog already 😛

[summer sigil]

Ok I've though bvh stuff over

Conclusion: bvh nodes need to be the meshlet groups we use for simplification. But, the list of meshlets they contain need to be the newly created meshlets post simplification.

So you have 8 meshlets. You group them, and get error = 0.2. then you split into 4 new meshlets.

Your bvh node is the 4 new meshlets with an error of 0.2, and an initial parent error of infinity

And then when you build the next group out of the 4 new meshlets, you simplify again and get error = 0.4

And so the node's parent error becomes 0.4

Although hmm, each new meshlets could be put in a different group, which leads to different parent errors

So uhh maybe it needs to be the max of the new groups?

I'm lost again ahhhh

Group 8 meshlets, simplify into 4 with error 0.1

Group 4 meshlets into 2 groups of 2 each, with errors of 0.2 and 0.3

So you want 3 bvh nodes, but what happens to the parent error of the first group, hmm

[summer sigil]

I guess to specify the problem, groups have multiple different parents, which means multiple parent errors.

And I guess you just use the max? Idk

I guess for the bvh it doesn't particularly matter, you'll eventually get down to individual meshlets and test self error anyways

Oh wait, I see

8 meshlets simplify into 4

8 meshlets are the parents

And the 4 are the leaves

So parent error here refers to just the simplification error when going from 8 -> 4

Maybe?

Nanite slides are a little vague ugh

[small osprey]

each meshlet stores it's own error, which is the error of the simplification that generated it

meshlets are then grouped, and that group's parent error is the simplification error. the group stores the meshlets pre-simplification

BVH nodes are built from these groups as the leaves

[summer sigil]

I think that all makes sense

[small osprey]

lol

[summer sigil]

I'm trying to remember which I call parents

Ok yeah parents are more simplified

[small osprey]

correct

[summer sigil]

So an unsimplified group stores the patent error, i.e. simplification error it used to make new meshlets

Cool, this shouldn't be hard to implement then

[small osprey]

yeah then you just yeet that into a normal BVH that also stores the max of parent error

and you're done

[summer sigil]

Idk why I had it so tangled up, this seems easy and sensible

Yeah

[small osprey]

oh and merged lod bounds

[summer sigil]

Yep yep

[small osprey]

the nanite presentation is vague and makes you think it's super complex

they probably did something super complex idk

I just did the most straightforward thing and it seemed to work

[summer sigil]

No it makes sense to me

Once I get this setup then it's runtime part

I'm praying 10+ dependent dispatches aren't super slow

[small osprey]

they're fine

atleast on ada

[summer sigil]

Cpu binding validation might get rough on wgpu, we'll see

[small osprey]

I only spend about 0.6 ms on culling a million lucies

[summer sigil]

I might have to use 1-2 buffers and just swap between them using push constants to avoid rebinding

[small osprey]

yeah I use 3 buffers total

read, write, and late pass

[summer sigil]

Much better than 1.27ms on this 😛 https://jms55.github.io/posts/2024-11-14-virtual-geometry-bevy-0-15/#gpu-timings

[small osprey]

yup

and about 2000x the geometric complexity

28 trillion tris vs about 2 billion

[merry laurel]

Spent 0.8ms on 125 bistros

[small osprey]

how many tris is a bistro

[merry laurel]

3.3m

[small osprey]

oh

only?

[merry laurel]

but I think a lot more meshlets are visible than your lucy scene

leaves are so bad

[small osprey]

oh yeah for sure

[small osprey]

leaves suck

[merry laurel]

My bad 2.8m

I have 1 sponza there also

[small osprey]

lol

sponza is also similar right

[merry laurel]

the old one

not intel one

[small osprey]

oh

that's like 3 trognles

[merry laurel]

thats 300k

I thinkl

[small osprey]

import intel sponza now

or deccer will appear in your walls

[merry laurel]

https://tenor.com/view/how-about-no-sloth-chill-nope-no-gif-6121955

When I look upwards angle on my scene of 125 bistros and 1 poor crytek sponza. It around 2.2 million meshlets

being rendered

[small osprey]

wtf

[merry laurel]

So removed the indirection in rendering gave me 0.4ms

[small osprey]

that's a lot

[merry laurel]

yeah whole scene 11.2m meshlets

Its a lot

[small osprey]

your culling might be cooked

[merry laurel]

I dont think so

[small osprey]

there's no reason to be rendering 2.2 * 128 million tringles

[merry laurel]

2.2m * 64

[small osprey]

still

even at 8k that's too much

[summer sigil]

What indirection?

[merry laurel]

I had a index list of visible meshlets produced by culling shader

then I used that index to get the meshlet instance data

[summer sigil]

Ah yes

[merry laurel]

Culling looks to be working fine

Argument could be made about hiz

but Idk I want to go crazy about as lpotrick to sample 3-4 grid

to cull

I didnt make any optimization in ways of subgroup/wave intrics, or playing with threadgroup size yet

[paper ore]

no space, jaker is taking too much space already

[merry laurel]

https://tenor.com/view/im-in-your-walls-gif-25753367

[summer sigil]

@small osprey one more question, do you build the BVH as you go, or at the end?

Like do I keep my existing DAG code where I store parent error and lod bounds and take the max etc, and then build the BVH at the end, or?

[small osprey]

i generate a Vec<MeshletGroup> for every lod level and generate the lod-bvh from that every simplify loop

and then merge them at the end

you still have to store parent error and lod bounds (in the group) and then max them in the BVH build

[summer sigil]

ugh ok

[merry laurel]

I figured out live++. Only thing I need to patch every library

[merry laurel]

only simdjson to fight

a lot of changes

[paper ore]

you are one of those people who have a project folder on the desktop 🙂

[merry laurel]

yeah

its based

rn I have like 14

why is simdjson such pain

fastgltf also

[paper ore]

@upbeat ether lukas said fastgltf sucks

[merry laurel]

snitching huh

[paper ore]

: >

[merry laurel]

there is cmake shenanigans going on

simdjson is refusing to be linked with functionadmin

[upbeat ether]

skill issue

[merry laurel]

https://tenor.com/view/run-chase-soldier-poor-horror-gif-25128796

I think the vcpkg I'd refusing to use the port

[merry laurel]

It's working

[proud marten]

hot

[merry laurel]

Gotta appreciate windows being terrible for not killing processes which eat all of ram, refuses to be closed and lagging whole desktop to the point where task manager says not responding

[merry laurel]

@north helm Update on small city. It causes device loss

[north helm]

😳

[merry laurel]

I fixed all issues but no clue what is going on gpu

[merry laurel]

this is such cope

[paper ore]

requires another lib to get rid of that 🙂

whatever comes after ECS

[merry laurel]

No idea why flecs behaves like this it moves only half of the bistro

[merry laurel]

Fixed but still hate it

Finally fixed my terrible cpu perf

[paper ore]

what did you do? replaced entt with flecs?

[merry laurel]

I had a dirty flag as a bool inside the component. Now its a "component" or flecs flag and I request only those entites which have it

[paper ore]

ah

[merry laurel]

It was painful to change it

I hit some weird UB

[paper ore]

you mean it hit you 🙂

[merry laurel]

It just broke

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

[paper ore]

Star Trek 7 🙂

[merry laurel]

I love this shit code to make it work

[paper ore]

replace is not working?

[merry laurel]

this is flecs entity being used there and somehow doing this makes it work normally

[paper ore]

ah, sneaky

[merry laurel]

This forces query to not be stupid

[small osprey]

maybe you should try to fix the actual UB

[paper ore]

https://tenor.com/view/richard-attenborough-whip-whipped-whiplash-whiplashed-gif-16685949900343051341

[merry laurel]

not gonna happen

[merry laurel]

Working on ms paint clone for school

https://tenor.com/view/sad-cement-seal-java-programming-gif-24524699

[paper ore]

it almost looks alright

the buttons could do with some margin

4px

[merry laurel]

UI was interesting to do... File menu is shrimple but About and Exit buttons werent. You have to create label and bind a action to it and override the graphics of the menu in order to make it work because simple menu.setOnAction isnt working

zoom feature is even worse

I removed it because its inherently broken because you dont have access to the image data

[paper ore]

jabafx?

[merry laurel]

yeah...

[paper ore]

their naming of things is very weird

it is what it is

[merry laurel]

so you zoom out and in order to write into new texture you have to draw the image into it and you loose quality and its also get moved into corner because even tho its size is 200px but it still calculates as it was full size

[merry laurel]

I am not touching ever again. for my sanity

Also inteljs maven packaging was broken. I had write some maven stuff to make it work

[paper ore]

: D

[merry laurel]

Also this is team project of 4 people feature branches are zip files sent to me and I had to stitch it up. I hope college isnt like this

I have college entrance exams in 10 days

[paper ore]

man

why is this still happening

ah just ordinary skool

[merry laurel]

yeah the best one in the region

teacher for this subject is showing us how to brew our own beer while we are "working" project for 4 months "very diligently"

[small osprey]

https://tenor.com/bSx3t.gif

[merry laurel]

Also did invidia just dropped raytracing for meshlets

[north helm]

is that a sort of vulkan extension ?

[merry laurel]

rn listening to some talk and looks like NV API has to be used 💀

so it wont come for some time

[north helm]

https://tenor.com/view/mengsedih-gif-23325538

[merry laurel]

https://www.youtube.com/watch?v=5KRxyvdjpVU

I love it wont be dx12 and then after 4 years it comes to vk

[north helm]

mega geom will come to vulkan you said ?

[merry laurel]

maybe

oh no

6 million objects

[north helm]

what is that model ?

[merry laurel]

intel dropped new one

[north helm]

oh

Jungle Ruins ?

[merry laurel]

yes

[north helm]

usd 😔

you are exporting it to gltf ?

[merry laurel]

trying to

it runs like 1 frame per minute

because blender sucks ass

[north helm]

lets use an online converter x)

[merry laurel]

its 4GB

it will choke on it real fast

giving up

[north helm]

https://tenor.com/view/tran-dan-dọa-pointig-gun-gif-15406186

test nanite performance on it

[small osprey]

hey SER came to vk pretty nicely iirc

[merry laurel]

SER?

[small osprey]

shader execution reordering

[merry laurel]

thats shader thing but this is api thing

[small osprey]

yeah but it needs a SPV extension

[merry laurel]

I think it will take much longer

[small osprey]

and a vk extension i think

[merry laurel]

we will see

[small osprey]

i wonder if this is just displacement micromaps

the API just does tri <-> micromap conversion

[merry laurel]

I think it's something more

[summer sigil]

Wait, when?

[summer sigil]

No it's specifically about bvh rebuilds. Displacement maps don't work for all forms of geometry, you need actual triangles.

Or some other form of encoding topology

And remember there's a big CPU cost to bvh builds as well

[small osprey]

https://registry.khronos.org/vulkan/specs/latest/man/html/VK_NV_ray_tracing_invocation_reorder.html

[summer sigil]

I don't know what the api will actually be though, they're not entirely clear how it works

[small osprey]

we can only wait

[summer sigil]

Oh, so it's an NV extension still, neat though.

Well I guess it wouldn't have made sense if it were a khr extension given it's 1 vendor only

[small osprey]

yeah

[summer sigil]

Reallllly hoping mega geometry gets pushed to directx/vk

[small osprey]

NV is apparently trying to get into mainline dx

so it should come as a VK_EXT soon™️

[summer sigil]

Where did you see that?

I only saw that DX is upstreaming neural shaders (which are also neat,but much more niche due to training costs)

[supple cliff]

i dont think they were clear on that

[summer sigil]

The bvh rebuilds part yeah, but it can't be displacement maps

You can't encode arbitrary geometry

See the nanite slides

[supple cliff]

do they have a technical overvciew for it already

[supple cliff]

did they say it can?

[summer sigil]

They did show a straw hat with gaps between the straw, you can't encode that with displacement

So I don't think it's displacement maps

[summer sigil]

Nah best I've found is digital foundry's video of Nvidia's ces demo booth

[supple cliff]

hmm that video made it looks a lot like heightfield ish tech imo. The base geo was detailed enough to capture all bending and convaveness i think

ill rewatch it

[summer sigil]

Look at the part specifically where they zoom in on the man's hat

[small osprey]

i think the DF video

[summer sigil]

They also showed deformable objects (the dragon moving), so not exactly sure what they're doing

[supple cliff]

that part doesnt really show the topology changing

[summer sigil]

I don't remember that part, but maybe I'm forgetting. At work, so can't check.

[summer sigil]

Don't they zoom out after and show tracing against it still?

[supple cliff]

i assume green is base geo

that has enough info for all topology

[summer sigil]

Green is current geo no?

They're showing the wireframe of what you're viewing in assume

[supple cliff]

they said the green is the base geo that is then improved with mega geo

[summer sigil]

I could be totally interpreting this all wrong though, they don't really say

Oh I see

So, could be displacement maps then your right

But some kind of LOD'd displacement maps? Idk

[small osprey]

could also be opacity mm + displacement mm

[supple cliff]

so i think this is totally doable with heightfields translated to triangles. I kinda think this is what it is. Streaming the heightfield in and based on that construct triangles just in time for the hw to intersect

[summer sigil]

That's so boring if true :/

[supple cliff]

really cool for sure but only usable for extreme geo density really

[small osprey]

nanite ftw

[summer sigil]

But I'll take any kind of thing that lets you build bvhs cheaper

[supple cliff]

yea i think people hype it a bit much

[small osprey]

you never know, it could just be nanite-handled-by-driver too

[supple cliff]

it will for sure make these ultra poly scenes much faster

similar to how omms make foliage way way faster

[summer sigil]

I was more hoping for meshlet based BVH partial rebuilds

[small osprey]

waiting for the day amd actually has useful new rt tech

[summer sigil]

They're working on a combined upscaled + denoiser like dlss/rr

[supple cliff]

ps5 has good rt now but no execution reorder 😦

[summer sigil]

And RT compression stuff

[small osprey]

maybe they'll finally have hw tri intersection and full traversal in the new arch?

[summer sigil]

But nothing about partial rebuilds that they've published

[small osprey]

how far behind intel is it?

[supple cliff]

well no reorder at all, so any shading and recursion is a lot worse i think

[summer sigil]

Consoles you also get to prebuild your bvhs and just load from disk iirc

[small osprey]

well, SER is quite expensive so i doubt that

[supple cliff]

true that is a massive advantage if you can afford that disk space. Optimizing BVHs is really big. Can easily get >2x improvements spending ages optimizing

[small osprey]

or do you mean basic reorder

hey, you can do it on load on pc too

fill up appdata/temp

[supple cliff]

no i think no reorder at all

[small osprey]

even intel can do reorder can't they

[supple cliff]

but really strong tracing perf and hw for for at least stack operations

[summer sigil]

I think only if you use RT pipelines?

[supple cliff]

yea intel is full pwoer rt with all the things

[summer sigil]

Which, who would want it to do that :p

[small osprey]

that's a req for everyone

[supple cliff]

yea rt pipeline only

[small osprey]

there's no way ray query can reorder lol

[summer sigil]

That's what SER let's you do iirc, no?

[small osprey]

no

rt pipe only

[summer sigil]

You just specify a reorder hash key before calling trace rays i thhugh

[small osprey]

trace rays is an rt pipe call

[supple cliff]

ser makes it user controlled within rt pipelines. Instead of only letting driver reorder based on what shader executes you give the hw a key that it uses to reorder

[small osprey]

ray q is tracerayinline

[small osprey]

it also does a full gpu-wide reorder

spilling everything to main mem and reloading etc

NV only uses it for very specific rays in the UE PT

[supple cliff]

inline traces are kinda unusable ish cause they are really slow on nv and intel compared to rt pipelines. Not sure why seems like it should be fast. I guess the hw can reserve more special space for hwrt in rt pipelines

[small osprey]

and all the manual compaction ofc

[supple cliff]

ofc doesnt matter anyway cause you need anyhit shaders

[summer sigil]

They are? Ugh

[supple cliff]

so tracing outside of rt pipelins will always suck mega

[summer sigil]

Guess I need to get wgpu to add rt pipelines then...

[small osprey]

my pathtracer halved frametimes or so when switching to rt pipe lol

or 60-70%

[summer sigil]

The shader binding table stuff is garbage though

I don't want to do that

[supple cliff]

you are doing something wrong my guy

[supple cliff]

oh yea i hate it too

it makes sense after a while tho

[small osprey]

i did change some other shtuff so uh

maybe

[supple cliff]

hmm

[small osprey]

can't check now tho because my code doesn't build

i'm rewriting my asset system

[supple cliff]

king shit

[small osprey]

and rewriting my gpuscene

[supple cliff]

Still very intresting to see all the advancements in hwrt with all the extensions coming

just sad to see that nvidia does it all

and the others always play catchup

tho intel does really well. AMD i can honeslty just not understand

[small osprey]

amd is busy playing catchup so they can't work on new things

catch 22

with dlss 4 they're finally competing with dlss 2/3

[supple cliff]

making 50000 frames from 1

[small osprey]

those are the frames my brain generated because i needed lsd to be able look at fsr

[supple cliff]

i have bad eyes i dont need TAA i already have it

[small osprey]

i wear glasses that are always smudged up, i get free fxaa everywhere

[merry laurel]

Working on general features, I got mouse picking in and imguizmo that one was painful because I have reverse infinite perspetive matrix it rendered fine but when I tried to move it. It gave me just bunch of NaNs

[small osprey]

highlight time

[merry laurel]

Next weekend

I have 5 exams again this week

And the college entrance exams

[small osprey]

[merry laurel]

They said the second half of the school year will be relaxed

Like I am still waiting

I hope the one exam gets moved to be on tuesday and not tomorrow

[paper ore]

just focus on school

graphics programming is not running away

[merry laurel]

thats why I said weekend because thats after the grades are locked so we can get report card. This weekend I only worked on those features. Spent 3 hours to add them and rest was school

[merry laurel]

Exam was moved 🥳

[merry laurel]

Exam and 11 hours long shift done. Now study for other exams. God I love this so much

[upbeat ether]

https://tenor.com/view/monke-monkey-dream-swim-gif-21857563

[merry laurel]

https://tenor.com/view/jake-peralta-i-wish-brooklyn99-b99jake-gif-23668724

[north helm]

Wake up ! New nanite raytracing extensions just dropped 🥵🗣️

https://github.com/nvpro-samples/vk_lod_clusters

This is mega geometry for vulkan with cluster based acceleration structures (CLAS)

https://github.com/nvpro-samples/vk_partitioned_tlas

And there is a new type of TLAS called PLAS to handle huge Dynamic scenes

[proud marten]

Do you have shadow mapping yet

[summer sigil]

Me? Yes

[merry laurel]

Me? No

I am not touching graphics for some time

I have first round of college entrance exams after me

But other ones are waiting for me

[proud marten]

Oh I see

[proud marten]

I’d like to discuss culling and multiview; is here fine?

[summer sigil]

Sure

[proud marten]

I'm just wondering how it's approached

Do you have any papers I could look at

[summer sigil]

The way nanite does it is that they pass in a list of multiple view textures at once

And then for culling, you basically have a list of (instance, view) tuples

And you can expand that into a list of (instance, view, cluster) ids

And then when you occlusion cull, rasterize, etc, you use the view id to index into the list of view textures and rasterize against that (remember nanite is using atomic R64uint textures for raster)

The reason you do this is that the overhead to do culling early, raster early, culling late, raster late is a lot of you do it per view

The overhead of spawning the passes themselves takes up a good amount of time

So instead you want to do single dispatches to handle every view at once, and avoid the overhead

1 camera + 4 CSM cascades is already 5 views, ignoring any point lights

Although nanite is supposed to be used with VSM, not CSM

Nanite also does screen space shadows to help fill in detail that shadow maps would otherwise miss

Anyways for me personally I think raster shadows are a complete dead end. I support them because bevy already has support for them so it was easy to add, but long term my plan is RT lighting

[proud marten]

if i understand correctly, this would mean 5 threads per meshlet (1 per view)?

[summer sigil]

Yes, basically

Although I don't really think of it like that

I have the concept of a "meshlet" which is the actual asset data

And then a "cluster" which is an instantiated copy of a meshlet

Where each cluster has an asscoiated instance data (transform), material, and view

And your passes just operate on giant flat lists of clusters

[proud marten]

i see

with a per view output?

[small osprey]

you'll need multiple passes for hw raster

another reason sw raster is much faster

[merry laurel]

https://github.com/nvpro-samples/nv_cluster_lod_builder

Huh

[supple cliff]

raytracing nanite

[merry laurel]

gotta love the glVertex3f

[merry laurel]

https://tenor.com/view/kermit-typing-frog-green-templates-gif-11878614

[paper ore]

more like NaNite

[small osprey]

VK_ERROR_DEVICE_LOSTite

[summer sigil]

So fun fact clear_texture in wgpu is slow af for storage textures

[merry laurel]

this article is going to be super long

[proud marten]

what in theee world

[merry laurel]

double it and give it to a next person

[merry laurel]

my notebook has decided to kill itself. BIOS no longer sees windows and HDD might be dead

[paper ore]

check if it flipped to UEFI bios for some reason but your hdd was actually in legacy mode

that can hide bootloaders from the mobo boot

there is also something called CSM, perhaps you can enable that to allow non uefi boots

[merry laurel]

it doesnt appear nowhere in bios even previous linux installation. I managed to live boot linux and hdd just inst there at all

Its 7 year old machine so I happy it even survived for that long

[paper ore]

ah

live linux to the rescue 🙂

[merry laurel]

I will try to get the data from the ssd and maybe hdd to but I doubt it. Then install linux for school. Hopefully in summer replace it for macbook for college and remote to my desktop

M1 costs with my nice discount 700 euro so might snatch it

[paper ore]

there might be good refurbished deals from apple directly

for m1, m2 and m3 even

[merry laurel]

hmmm

m3 air is 829 usd

refurbished

[merry laurel]

In a week I should have article/blog post ready for a review. Its going to be a long since its a thesis going into the details

[upbeat ether]

for most things you dont even need to remote tbh

it's extremely powerful

(unless youre doing VK on it ofc)

however for that if you have a m1/m2 just dual boot with asahi

[merry laurel]

I know the macbook is quite powerful but the reason for remote is to work on my vulkan stuff and some windows only sw that I will have to use for college for sure

[spring sandal]

or just not buy apple shit

[merry laurel]

I need something that survives for long

and not a brick

I am looking into small notebooks and m1 macbook is the cheapest option which is wild

[upbeat ether]

too bad its not shit

[merry laurel]

only painful thing will be getting used to the keyboard

also the os

[spring sandal]

My blood boils every time I see their stupid mouse with usb port on the bottom

[upbeat ether]

fair

[devout niche]

Guys, how’s your experience with slang shader profiling using nsight? Does it work for you, I mean you can stop the warp, execute line by line, see active lanes, etc..

I tried combination of options but it still somehow lacks of debug information level(IL) as nsight says regardless of fat ass .spv(though i think compiling to spirv directly ruins everything maybe idk)

[small osprey]

shader debugging doesn't work, profiling does

[devout niche]

yeah in default gpu trace it works for me as well, but ah ew what a pity we still cant debug fully

[merry laurel]

looks like the HDD is alive but has amnesia

[paper ore]

live linux should see it too?

i never touch any windows tool to rescue any disk this never worked in the past hehe

[merry laurel]

sadly it doesnt

[paper ore]

lsblk is not listing it?

any clues in dmesg?

linux (i mean any distro with that not the kernel itself) doesnt automatically mount drives per se

[merry laurel]

lsblk only sees ssd which survived and the flash disk

I havent tried dmesg

[paper ore]

weird

if windows can see it, then lunix should too

[merry laurel]

yeah my guess the partion table on the hdd was nuked somehow then no sw can figure it out

[paper ore]

what did you do?

[merry laurel]

nothing. I tried some sw but they cant even find the hdd in the first place

[paper ore]

no i mean what did you do with the drive 🙂

[merry laurel]

nothing notebook was lying on the shelf, charged and booted, moved some data and then shutdown. After a hour I tried to boot it again and got sent to bios meaning it cannot boot into windows and was about it. So I took it out connected to my desktop an tried to do something with it and now its lying on the shelf

[paper ore]

strange

it could be a dead ssd too then

especially if it was some cheap noname one, they can degrade as usbsticks or sd cards

[merry laurel]

I just installed windows on that "dead" ssd

[paper ore]

put linux on it then 🙂

[merry laurel]

we finally have our timetable for the final exams and its stretched over 3ish months to just keep you suffering. 7.4 - 6.6.

For now these 2 weeks for 2 college entrance exams

[uncut fulcrum]

good luck!

[proud marten]

Good luck pal

[merry laurel]

I just got results from first college exam. I am in 64.24 percentile which should just barely get me to college. I fucked up critical thinking part of exam where I was in 25 percentile. After 65 minutes of math and english they make you read 15 A5 in 45 minutes and answer not simple questions. The texts are snippets from studies, laws, contracts, etc.. On bright side in math I was 91 percentile and english 87. Tomorrow I have the exact same exam and next week is different one which is only math and its made in the way that you cant finish it. Even completing half gets you in 70-80 percentile. For this college I need 45 percentile

[merry laurel]

I just found out there is one tiny detail to get into computer science you need have 75+ percentile in math from whole college so for me it means I have greater chance to get in

my friend wants to go to same college and computer science and he has 67 percentile in math and 74 percentile overall rip

[uncut fulcrum]

Good work, good luck on the upcoming tests also

[merry laurel]

I just witnessed how templates are slow to compile. My script engine takes 12s to compile

basically 50-70% of compile time

[devout niche]

Yep, as well as growing binary size if you have more of them

[proud marten]

thank goodness i dont use them

[merry laurel]

they are fine in small number but it starts to accumulate it gets slow

also you std::vector is templated 😛

[proud marten]

true

i just dont make my own very often

“very often” implies I have a few times. i dont think i actually ever have (in practice)

[merry laurel]

So some good and bad news. I have pneumonia
The doctor thought this was just cold so he prescribed me weak antibiotics. After the week I went for a check up he said it's okay but to be sure we're gonna do RTG. Next day after 3 hours in schools he told me to get out because I have pneumonia and also to buy stronger antibiotics.

On Saturday I have a college entrance exam marking the 3 exam while being on antibiotics.

[pale vortex]

do you get penicillin shots?

[merry laurel]

The pneumonia is chill. No temperature, no tiredness just coughing

[merry laurel]

Never?

[pale vortex]

you normally get penicillin shots for pneumonia

unless it's caused by fungi

but maybe there are fancier antibiotics now

[merry laurel]

No clue

[pale vortex]

well if you're feeling good then that's good

[merry laurel]

These are some strong ones. Only once a day and some rules to follow

At least I have time to study for the exam

This one is pure math which I excel at

So that's nice

The only thing to keep in mind is some stupid rules and tricks

[merry laurel]

Another college entrance exam done. This one I am feeling I did really well.

Also got a itch to make minecraft clone

[paper ore]

why not a star citizen clone?

[merry laurel]

minecraft clone is easier

[paper ore]

: (

then we dont need the 1290348109809234820942840298432098234094820127839th minecraft clone

[merry laurel]

I see Caio fighting his tessellation thingy

But its on my list

[paper ore]

GTA 5 clone 🙂

Witcher clone

DayZ/ArmA clone

[merry laurel]

https://tenor.com/view/he-cant-keep-getting-away-with-it-gif-19335672

I am torturing my gpu a little bit

64 chunk render distance

[paper ore]

so you are neck deep into this mc clone already

[merry laurel]

this took me 2 hours canibalizing my nanite project and watching a movie

[paper ore]

https://tenor.com/view/dredd-i-knew-youd-say-that-stallone-gif-23229845

[merry laurel]

I will be stuck home for another 6 days

so why not

[paper ore]

yeah

[merry laurel]

also I should be studying and preparing for high schools final exams

[paper ore]

mc 1.24 level functionalities expected within the next 5hrs

[merry laurel]

I have to fix my VRAM usage, multithread it and do gpu driven rendering

frustum + lpotricks scanning visbuffer for culling

[spring sandal]

This one is kinda taken by demon

[paper ore]

fair

[merry laurel]

I hate multithreading so much and std::list

Also I am crashing on push back somehow

got some textures

[upbeat bluff]

i smell a voxel engine

[merry laurel]

not really just satisfy my minecraft clone itch before I can work on nanite again

[upbeat bluff]

join the voxel gang

https://tenor.com/view/we-all-float-down-here-twisted-pennywise-cameo-we-all-are-down-here-floating-down-in-the-sewer-gif-19074639

[merry laurel]

no

triangle gang here

[upbeat bluff]

ye, that's what i mean

dont listen to those weird voxel rt people

rasterization is the way

[north helm]

cope

[merry laurel]

missed the treshold by 4%(basically if I had answered one more question I might had reached it). I had more questions answered and correct and somehow I am 20% less than him(he had same exam different questions month ago)

such bullshit

[paper ore]

that just means more time to code

[merry laurel]

sadly not

I have bunch of stuff to do

preparing for final exams for high school. I need to study how to write essays I really suck at them. Finish the article. Prepare for exams when I return to school and more

[merry laurel]

@summer sigil
This is something that might be interesting to you regarding small meshlets
https://github.com/zeux/meshoptimizer/pull/846

[summer sigil]

Yeah I've seen it. Unfortunately I'm burnt out on virtual geometry atm :/

[merry laurel]

[summer sigil]

I'm also unlikely to touch clustering code atm anyways. It's at least good enough for now after my last PR, I need to focus on the hierchal culling.

I'm tempted to swap to nvidia's library though because they have the BVH building built in

And writing it by hand is making me give up :/

[merry laurel]

feeling same after gradiation I would to spend tiem making my renders beautiful and not just faster. I cheked the nvidias library I dont see bvh mentioned there at all

okay there is some hierarchy going on

but it doesnt look like to me as bvh

alright I am stupid this is bit confusing codebase there is some bvh

going to sleep

they seem to have persistent threads that is something that requires operation Strategic Transfer of Equipment to Alternate Location aka STEAL

[merry laurel]

Today they announced final results and I am in 😈

priority admission to college for the win

In a week or two they should email me about it

Now focus to actually not fail on final exams

[paper ore]

?

why more final exams when you are in already?

or do you mean your actual current school final exams?

[supple cliff]

Congrats!! 🎉

[merry laurel]

Yeah, I mean the current schools final exams.

[north helm]

Gg

[merry laurel]

its going to be like this for 20 minutes

https://tenor.com/view/haath-sekhna-swamod-swatipramod-shorts-break-aag-ki-garmi-lena-aag-mein-hath-sekna-gif-27434104

my cpu

linking failed...

[merry laurel]

I was forced to use vs generator instead of ninja but it finally compiled

[lilac iron]

why are you building llvm 😭

[merry laurel]

evil plans

[small osprey]

llvm builds in like 10 min on my 7900x huh

with ninja

I should buy a 7950x3d for no reason at all

[upbeat ether]

no you shouldnt

theres a 9950X3D after all

[small osprey]

ok I don't have 700 quid to spend on a new CPU

I do have 300 quid to spend on someone else's 7950x3d tho

especially because they're now spending 700 quid on a 9950x3d and want some of that money back

[paper ore]

or just wait till next winter

then use your old cpu to warm the house with compiling llvm

[upbeat ether]

write yourself a kernel that just does while (true) on all cores with no preemptive scheduler

[merry laurel]

What did I start in #bikeshed-😇 😭

[supple cliff]

damn

[merry laurel]

All I wanted to say was that Ubisoft either screwed up something or released buggy mess

Tomorrow morning I will have something to read at the doctor

https://tenor.com/view/michael-jackson-comendo-picoca-gif-9669437860846841235

I saw you saky

[spring sandal]

I know you are busy, but maybe you know how to solve this.
When building network in cisco with multiple vlans and dhcpv6 pools pcs pick up ALL domain names, regardless of vlan they belong to. Second image is ipconfig on any pc in any vlan.
Thanks in advance

[merry laurel]

no clue man, we did NS records a week ago

[spring sandal]

Thanks anyway, I am dead

[merry laurel]

I have been in trenches with NAT past few weeks

Also mail servers and more

[spring sandal]

Luckily this is my final stop(or at least I hope so)

[merry laurel]

we will continue for a month and then final exams 💀

[merry laurel]

It arrived and now wait until I can sign up for the college

[summer sigil]

Another, much smaller update than usual: https://jms55.github.io/posts/2025-03-27-virtual-geometry-bevy-0-16/

[merry laurel]

I am alive but dead inside. This week was extreme. I had the essay where I hope I did well. Also I had pre final exam from math to check if they will even let you do the final exams. Lastly bunch of other exams and presentations 💀

Now I have 4 days of free time which I will spend on writing the thesis finally

[spring sandal]

Drop it here after defence

[merry laurel]

Its in czech

But I have english one also

[spring sandal]

Google translate exists anyway

[merry laurel]

both are in half finished state

I feel really sorry for my opponent

[small osprey]

is your thesis nanite thesis

[merry laurel]

yes 💀

[small osprey]

based

[paper ore]

https://tenor.com/view/flashbang-gif-22572243

[small osprey]

you're 4 years ahead of a lot of people

there's so many nanite bachelor's thesises

[merry laurel]

there was recent master thesis about nanite

[small osprey]

ain't no way 💀

what's the sauce

[merry laurel]

written in rust but it doesnt have even 50% of my stuff

[merry laurel]

#showcase message

[small osprey]

damn they use rust-gpu

[merry laurel]

yeah he only done LODs and some culling.

[small osprey]

no bvh cull

[merry laurel]

I need to still work on my lods

[merry laurel]

I wanted to do bvh culling but no time and essys would be too long 💀

[small osprey]

i'm porting my bvh cull to bevy and losing my mind

[merry laurel]

My TODO list is like 80 items and I have still 2 months of stupid school bs

[small osprey]

i've managed to uncover shader compiler bugs outputting invalid spirv and my buffers randomly change from out under me

very fun would recommend

[merry laurel]

I had my some share of those

nvidia mis compiling if statement and crashing the whole OS

[small osprey]

nvidia drivers are on a roll lately

[merry laurel]

indeed

[small osprey]

i pray that when i'm back home in 2 weeks they will have fixed the gpu crash recovery

[merry laurel]

https://tenor.com/view/doubt-press-x-la-noire-meme-x-button-gif-19259237

they managed to fuck with lpotricks async stuff

[small osprey]

if breaking async compute and overlap is what it takes to recover from crashes, it's worth it

[merry laurel]

😔

[small osprey]

wtf is that

[merry laurel]

I ran out of t3 chat free messages for AI

[small osprey]

💀

[merry laurel]

Its great for yapping

[pale vortex]

should've said "discord update preview"

[merry laurel]

💀

Yesterday discords outage was quite funny. We were playing EFT when it happened. We had to switch to VOIP in the game itself. Problem with it is that other enemy players can hear you. Some russians heard us so we had some nice exchange of words and lead.

[merry laurel]

I am currently on 57 pages... I really feel pity of my opponent

[spring sandal]

"Opponent"? I thought you just defend against jury of professors

[paper ore]

a teenager flex

[merry laurel]

from Saky:

funny how it doesn't translate, but it is a super normal thing here. Every thesis (usually bachelor and diploma though, HS is more rare) has a supervisor and an "independent" opponent

still not done... I have 2 days to finish it so I can have physical that they need. I dont want it be printing it the day I need to submit it next week

this week I have only 2 school days but 4 exams so the my free time will be non existant 💀

[spring sandal]

Cool, I guess

[merry laurel]

2 exams done and another 2 tomorrow.
I am at 62 pages. User guide to this nanite thesis is basically good luck with compiling and if you have bad HW then also good luck. Now to citing the sources

[spring sandal]

Put some work in it, imma implement mine based on it

[merry laurel]

I am almost at the finish line

[merry laurel]

You can already steal my code but you wont have the yapping about it

[spring sandal]

I am mostly interested in yapping(Ill get demotivated half-way into implementation)

[merry laurel]

ehhh

its quite abstract

[merry laurel]

It is done

https://tenor.com/view/ryan-gosling-blade-runner-2049-jonah-gif-15461738203592622393

63 pages, 9500 words, 20 sources(I mentioned frogs from here )

Tomorrow as a reward I will play tarkov until midnigh

[frigid breach]

congrats 🎉

[merry laurel]

I forgor to put image of my program there 💀
It should be fine tho

But damn boy he thicc

No forest was spared for this thesis

[merry laurel]

I love being in the vcs and chats were people are malding over the fact the thesis has to be submitted tomorrow

some people are just finishing their projects

[merry laurel]

https://tenor.com/view/mr-bean-mrbean-bean-mr-bean-holiday-mr-bean-holiday-movie-gif-3228235746377647455

[proud marten]

hows it going lukasino

[merry laurel]

Quite well. I just finished the written final exams so only one left are oral exams. Those will be in a month. Gotta study over 100+ A4 of stuff.

Also yesterday I had interview and they seem to like me. So I just hope they will have budget for me

[proud marten]

i see

[merry laurel]

Good news. I passed the written exams. Now only oral exams and defence of my thesis.
Also officially I have been excused from entrance exams for college so I will need to just sign up and I am in 😈

The email from college had this image in there

[supple cliff]

lol

congrats!

[north helm]

how x)

[merry laurel]

here colleges allow to skip entrance exams when you fulfil some requirements

I am back to kind of working on this project

I dont want to touch rendering for some time. So I am working on asset pipeline to make it much better code, perf and quality wise.

Also I want to add asset editor. Something similar to blender but wont shit the bed when you load 8GB model.

I want to add import for usd and fbx and export ability

so touching blender could be avoided

[spring sandal]

Usd is understandable, but why fbx if it's literally gltf?

[merry laurel]

because there are a lot of fbx models

thats the only reason why

I dont trust blender with fbx -> gltf

something will blow up in process

dealing with usd and fbx is going to be a lot of fun

[spring sandal]

save yourself some headache and don't support fbx

[merry laurel]

it will be the last that I will support

[small osprey]

see you in 20 years

[merry laurel]

😭

it will be simple stuff like change texture

tweak stuff

mainly I need some editor too see model and examine because I had some funsies with certain models

my current asset pipeline is just wing it and hope that 32 threads wont crash at the same time because some bogus that artist made

I had some case where albedo and emissive texture had same underlying image so when I tried to convert the image it exploded because I have different encoding schema for both

[devout niche]

32 threads 💀 bro has 16 core cpu

[merry laurel]

It was cheaper to get 7950X than 7800X3D

[devout niche]

also have you tried loading san miguel? for me there's texture that isn't bound to any material, but I tend to think it's my skill issue, when I parsed from obj/fbx to gltf using blender and then import problems arose

[merry laurel]

I havent tried it

[merry laurel]

I will murder somebody

[upbeat ether]

please do 🙏

[merry laurel]

I wish there would be tool that could find header from where this shit comes from

Its from the logging library

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

[merry laurel]

I am reading through gltf spec

I found out using sRGB format for base color texture is correct for RGB channels but A channel is linear so it will have incorrect alpha value

so you have to un-sRGB A channel or have UNORM format and sRGB the RGB channels

I avoided this bs with my own format that splits A channel into its own texture that is linear

[upbeat ether]

as our local gltf expert, no

The base color texture MUST contain 8-bit values encoded with the sRGB opto-electronic transfer function so RGB values MUST be decoded to real linear values before they are used for any computations.

the second part might suggest this is only RGB

though I only take that as an example

the first part says the entire texture must contain sRGB values, and doesn't differentiate between RGB or A

The base color texture. The first three components (RGB) MUST be encoded with the sRGB transfer function. They specify the base color of the material. If the fourth component (A) is present, it represents the linear alpha coverage of the material.
uh wait what

I would guess that is badly worded, given the first sentence I quoted

the changes proposed here (and ultimately merged) also suggest that all four channels are sRGB encoded, since the diffuseFactor is applied linearly to all four channels:
https://github.com/tsturm/glTF/pull/3/files

tbh it might be worth opening an issue about the wording on the second quote I sent

[merry laurel]

this is regarding some extension not really the core gltf spec

from what I understood

first paragraph that you queted says sRGB applies to RGB channels and leaves the A channel "not defined" but later defined by second paragraph

Okay I checked code of gltf viewer and they transform srgb to linear all channels

so eh.....

[upbeat ether]

no it doesn’t

[upbeat ether]

.

[merry laurel]

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

[merry laurel]

updating to new daxa

https://tenor.com/view/explosive-couch-explosion-l-bozo-gif-25612086

[supple cliff]

nice

[proud marten]

youre on daxa?

i wanna give it a try in my next project

[devout niche]

tbh daxa seems to be best abstraction over vulkan rn.
I looked the way bindless handled and was like "fuck, i need that too", i mean arrays of tlases, storage buffers, etc. so you kind of don't pass bda's into shaders but uint64_t id(id + version)

[vernal blade]

Ids for buffers and tlases will probably removed in favor of bdas

But also nothing stops you from not using ids and passing by bda anyways

[devout niche]

but how would you then define buffer as globallycoherent?

[devout niche]

currently my rhi relies on BDAs only but seems i need to implement storage buffer descriptor array as daxa does

[vernal blade]

Hmmm good point

[devout niche]

tido(timberdoodle) has homebuilt hzb AFAIK, so I don't think you guys really can get rid of buffer ids

[devout niche]

for tlases can agree

[supple cliff]

we never use coherent buffers tho

there is a coherent texture access but not buffer

[devout niche]

then you rely on VMM(vulkan memory model?)

[supple cliff]

no, im saying im not using a buffer for coherent access, i am using a coherent image

i had yo disable vmm, forgot the reason

i think its optional now

[merry laurel]

it broke debug printf in shader for you

[supple cliff]

ah right

[merry laurel]

Defence of my thesis is in a week and oral exams another week after that. Its taking too long 😭
These day I am studying and working on my ui for fun after that. UI is surprisingly not easy thing

Got simple font rendering working with harfbuzz. I will switch later to vector based text rendering with mesh shaders. Also got nice flexbox algo working

[merry laurel]

Defence of my thesis successful got some interesting reactions. I wasnt worried about failing that. Only thing that sucked was being in the full suit in sultry weather

In 8 days I have oral exams back to back from various subjects

After that its finally over

[merry laurel]

Everytime youtube changes the layout I get anurysm

on my 27" QHD I can only see 12 recommended videos

and when I put window to be same size as the half of the screen. It just decides to display next video the same size as the video playing

[north helm]

thesis release when ?

[merry laurel]

I can send you one in czech and you can translate it with google docs
I recommend just reading my code and figure out how this works

[north helm]

imma wait for the en version 😅

[merry laurel]

ITS OVER

No more studying

Got straight As. Questions for oral exams were ciphers and hashing for programming, and the technical subject interupts and DMA. Also I had oral exam from czech and literature that was fine.

This arrived to my mailbox

[north helm]

What does it says ?

[vernal blade]

"Build you future. Block by block. Bit by bit."

[north helm]

Oh and that is his uni ?

[vernal blade]

no clue :D

[upbeat ether]

forgive my ignorance, but is this for a bachelor or masters? do those questions have to be answered in detail? cause that seems fairly trivial to me, or am I misunderstanding this entire thing

i've never looked at how an actual thesis looks like or what is involved before and after that so idk

[frigid breach]

pretty sure it was highschool

[upbeat ether]

a thesis in high school

[merry laurel]

Yep uni

[merry laurel]

This is high school. The questions are not by hard by themselves. In this case they were asking in quite a detail but if you knew some basic stuff you could pass with D. The problem from each subject you have 25 question so it stacks.

All oral exams are back to back in one day with 10 minute pause.

I had 70 questions in total. The stuff that I prepared to study from is about 180 pages of stuff. The hardest thing about all this is just to remember all of it

[upbeat ether]

this stuff in high school is extremely interesting

[merry laurel]

We have "specialized" high schools here. Mine is computer science for example. Also it has other specializations

[upbeat ether]

that's actually very cool

[merry laurel]

Damn I missed first day of REAC

[supple cliff]

was very good

[merry laurel]

I was particullary excitent about meshlet rendering but also GI stuff. Sadly I will have to wait for the videos to be uploaded

[supple cliff]

i missed the last talk

[summer sigil]

Wait I thought it was tm?

Frick did I miss it

Gah what the heck

Is it a different discord than 2024?

[supple cliff]

should be the same

today are more talks

[summer sigil]

Smh I was looking at the siggraph discord this whole time, not the REAC discord 😅

[merry laurel]

@summer sigil I hope you are present for the REAC today

[summer sigil]

yep!

[merry laurel]

I am going for vacation to finally rest and then I can start working on the project again 😈

[merry laurel]

I am coming back on Saturday. The first thing I would like to add is lights finally. Then finally handle masked and alpha blended materials. Alpha blended is going to be handled by WBOIT and Linked List OIT that should be bandwidth friendly . I would love to add animated models it's first time I will be doing it. The last best thing is going to be ViSM

[proud marten]

i can offer some help if youre loading animations from gltf

[merry laurel]

Finally made it home. Tomorrow, the bikeshedding can begin.

[merry laurel]

Lights are in but in somewhat hacked in. I dont want to touch any pbr stuff yet. So it will look like that...

I have to figure out the best way to manage the lights

Tomorrow the materials are next

[merry laurel]

Some silence here. I have gotten myself a job. Its web dev
Currently having a lot fun with server and client rendered pages looking different for some stupid reason

[pale vortex]

Haha enjoy

This is my 6th year and I think it'll be the last, 6 years of that is enough for a lifetime I say

[merry laurel]

I am doing some map stuff. All the libraries are so bad. I found some annoying bug

[pale vortex]

Mapbox?

[merry laurel]

I had to deal with topojson, weird projections and coordinates tomfoolery to get all the stuff nicely displayed

react simple maps

[pale vortex]

O shit react

What an awful and easy to mess up framework

[merry laurel]

what do you use?

dont say angular

that thing is worse

I dont really use react but nextjs 🤓 ☝️

[pale vortex]

I inherited a react project from others right now and it's riddled with bugs that I have to fix

It's really really awful and undebuggable

[merry laurel]

yeah

This makes me want to cry

its so bad

[pale vortex]

Try not to spend too much time in webdev especially since it's your (I assume) first job

Your brain will rot and you will become unhirable in other domains over time

Use the $$$ webdev pays to get your life in order maybe buy an apartment and pay it off

Then get out

[merry laurel]

This is my 4th programming job I already got large ammount of brain damage from one angular job

The DOM was so huge the horizontal slider appeared and you could scroll for some time

this is the only screenshot I have of it(not revealing anything) but OH BOY
My inspector was taking half the the screen so I could debug it 😭

[merry laurel]

That is my plan. I have some C++ job lined up too so I end up crazy

[small osprey]

ensure the place uses perforce instead of git for maximum effectiveness

[merry laurel]

I am building the whole stack
Leaving the with mess 😈

[north helm]

Svelte ☝️ 🤓

[merry laurel]

FINALLY MAN

This shouldnt take this much changes 😭

21 changed files, 4 new files

[pale vortex]

what did you do tho