ComputerShader

基础知识

Shader Model 5 Objects

https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/d3d11-graphics-reference-sm5-objects

System Values

https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/d3d11-graphics-reference-sm5-system-values

原理

SV_GroupID 线程组ID unit(2,1,0)

SV_GroupThreadID 单个线程组里面线程的索引 uint3(7,5,0)

SV_DispatchThreadID 当前正在执行的线程id,他是线程组和线程的复合形式 unit3(27,13,0)

SV_GroupIndex 线程组ID的一维表现形式

https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/sm5-attributes-numthreads

Computer shader 采样贴图

https://docs.unity3d.com/2020.3/Documentation/Manual/class-ComputeShader.html

Using sampler states

https://docs.unity3d.com/2020.3/Documentation/Manual/SL-SamplerStates.html

Unity 官网计算着色器

https://docs.unity3d.com/cn/current/Manual/class-ComputeShader.html

How To: Create a Compute Shader

https://docs.microsoft.com/en-my/windows/win32/direct3d11/direct3d-11-advanced-stages-compute-create

示例