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Working on visibility pass

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This commit is contained in:
Dynamitos
2024-06-07 09:19:47 +02:00
parent ad00e16cf9
commit cb21e8a85a
24 changed files with 450 additions and 373 deletions
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res/shaders/VisibilityCompute.slang
+8 -28
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@@ -8,35 +8,15 @@ struct VisibilityCullingData
};
ParameterBlock<VisibilityCullingData> pVisibilityParams;
groupshared MeshletCullingInfo cullInfo;
[numthreads(BLOCK_SIZE, 1, 1)]
[numthreads(BLOCK_SIZE, BLOCK_SIZE, 1)]
[shader("compute")]
void computeMain(
uint threadID: SV_GroupIndex,
uint groupID: SV_GroupID,
uint3 dispatchThreadID: SV_DispatchThreadID,
){
if (threadID < MAX_PRIMITIVES / 32)
{
cullInfo.visible[threadID] = 0;
}
GroupMemoryBarrierWithGroupSync();
for (uint y = 0; y < pViewParams.screenDimensions.y; y++)
{
for (uint x = threadID; x < pViewParams.screenDimensions.x; x += BLOCK_SIZE)
{
int3 texCoords = int3(x, y, 0);
uint encoded = pVisibilityParams.visibilityTexture.Load(texCoords).r;
uint2 decoded = decodePrimitive(encoded);
uint base = decoded.y == groupID ? 1 : 0;
uint arrIdx = decoded.x / 32;
uint bit = decoded.x % 32;
cullInfo.visible[arrIdx] |= (base << bit);
}
}
GroupMemoryBarrierWithGroupSync();
if (threadID < MAX_PRIMITIVES / 32)
{
pVisibilityParams.cullingInfos[groupID].visible[threadID] = cullInfo.visible[threadID];
}
int3 texCoords = int3(dispatchThreadID.xy, 0);
uint encoded = pVisibilityParams.visibilityTexture.Load(texCoords).r;
uint2 decoded = decodePrimitive(encoded);
uint arrIdx = decoded.x / 32;
uint bit = decoded.x % 32;
pVisibilityParams.cullingInfos[decoded.y].visible[arrIdx] |= (1 << bit);
}