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UUSL计算着色器

UUSL supports compute shaders: there are special functions, semantics and parameters for compute shaders. UUSL支持计算着色器:计算着色器具有特殊的功能,语义和参数。

In UNIGINE, compute shaders have a *.comp extension.在Unigine中,计算着色器的扩展名为*.comp

A compute shader is a special part of the graphics pipeline. It allows to execute code on the GPU, read and write buffer data.计算着色器是图形管道的特殊部分。它允许在GPU上执行代码,读取和写入缓冲区数据。

Main Function
主功能#

To start and end the void Main function of the compute shader, use the following instructions:要开始和结束计算着色器的void Main函数,请使用以下指令:

UUSL
#include <core/materials/shaders/render/common.h>

MAIN_COMPUTE_BEGIN(WIDTH_GROUP,HEIGHT_GROUP)
	<your code here>
MAIN_COMPUTE_END

This code is equivalent to:此代码等效于:

Direct3D
#include <core/materials/shaders/render/common.h>

[numthreads(WIDTH_GROUP, HEIGHT_GROUP, 1)]
void main(DISPATCH_INFO dispatch_info) {
	<your code here>
}

Semantics
语义学#

UUSL Direct3D Description
GROUP_ID GROUP_ID SV_GroupID SV_GroupID Contains the index of the workgroup currently being operated on by a compute shader包含当前由计算着色器操作的工作组的索引
GROUP_THREAD_ID GROUP_THREAD_ID SV_GroupThreadID SV_GroupThreadID Contains the index of work item currently being operated on by a compute shader包含计算着色器当前正在操作的工作项的索引
DISPATCH_THREAD_ID DISPATCH_THREAD_ID SV_DispatchThreadID SV_DispatchThreadID Contains the global index of work item currently being operated on by a compute shader包含当前由计算着色器操作的工作项的全局索引
GROUP_INDEX GROUP_INDEX SV_GroupIndex SV_GroupIndex Contains the local linear index of work item currently being operated on by a compute shader包含当前由计算着色器操作的工作项的本地线性索引。

Keywords
关键字#

UUSL Direct3D 描述
SHARED groupshared Mark a variable for thread-group-shared memory for compute shaders为计算着色器标记线程组共享内存的变量
MEMORY_BARRIER_SHARED GroupMemoryBarrier() Blocks execution of all threads in a group until all group shared accesses have been completed阻塞组中所有线程的执行,直到所有组共享访问完成
MEMORY_BARRIER_SHARED_SYNC GroupMemoryBarrierWithGroupSync() Blocks execution of all threads in a group until all group shared accesses have been completed and all threads in the group have reached this call阻塞组中所有线程的执行,直到所有组共享访问完成并且组中的所有线程都到达此调用
最新更新: 2024-08-16
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