Lmst

Sometimes optimization means carving out all the important work, until there's nothing left and one stands to wonder how the fuck anything is still being made.

#Gamedev #ShaderDebugging #ShaderProgramming #PerformanceOptimization #TheMathPeopleAreNotAllowedToLookAtThis

Stride 3D giới thiệu SDSL - ngôn ngữ lập trình shader kết hợp hệ thống mixin, hỗ trợ ghép nối mô-đun shader tạo hiệu ứng linh hoạt. Đang nâng cấp bộ biên dịch SDSL để chuyển đổi trực tiếp ra SPIR-V thay vì GLSL/HLSL, cải thiện hiệu năng. Bài viết thuộc phần 3 loạt bài phân tích kỹ thuật. #ShaderProgramming #StrideEngine #GameDev #LậpTrìnhShader #CôngNghệTròChơi

https://www.reddit.com/r/programming/comments/1puslz2/sdsl_a_newold_shader_programming_language/

Pixel/Fragment Shaders which run on pixels and fragments (fragment is a chunk of pixels on the screen), these do everything that’s not the geometry data, typically the output of the Geometry/Vertex shader is fed into these shaders.

Read more 👉 https://lttr.ai/APJqp

#gamedev #IndieDeveloper #indiedev #ShaderProgramming #Shaders #YoutubeChannels #ExcitingField

The Rendering Pipeline is the sequence of steps that shaders takes when rendering objects.

Read the full article: The best youtube channels to learn shader programming
▸ https://lttr.ai/AKgdy

#gamedev #IndieDeveloper #indiedev #ShaderProgramming #Shaders #YoutubeChannels #ExcitingField

Holy shit I found it.

So, back in august I already noticed issues with #Intel chips because of their older #GLSL version. The culprit was this bit (simplified):
```
for(int i = 0; i < NUM_SHADOW_CASCADES; i++)
CalculateShadow(_shadowMap[i]);
```
`_shadowMap` is a so-called texture sampler. GLSL 3.30 does not allow indexing texture samplers with non-constant values, so I had to unroll the loop like this:
```
CalculateShadow(_shadowMap[0]);
CalculateShadow(_shadowMap[1]);
CalculateShadow(_shadowMap[2]);
```
And now - as it turns out - this specific driver implementation also doesn't support passing a texture sampler as a function parameter, because it works totally fine when I do this:
```
CalculateShadow_0();
CalculateShadow_1();
CalculateShadow_2();
```
So I had to define three separate copies of the exact same function, just to access the different shadow maps. God fucking dammit Intel. At least TELL ME.

#OpenGL #GameDevelopment #Programming #GameProgramming #ShaderProgramming #Shaders #GPU #Drivers #Windows #GameDev

The best youtube channels to learn shader programming – Render Pipeline

#ShaderProgramming

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