39 lines
1.1 KiB
Plaintext
39 lines
1.1 KiB
Plaintext
import Common;
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import Scene;
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groupshared MeshPayload p;
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groupshared uint head;
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groupshared MeshData mesh;
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[numthreads(TASK_GROUP_SIZE, 1, 1)]
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[shader("amplification")]
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void taskMain(
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uint threadID: SV_GroupThreadID,
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uint groupID: SV_GroupID, )
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{
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if (threadID == 0)
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{
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head = 0;
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mesh = pScene.meshData[pOffsets.instanceOffset + groupID];
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p.instanceId = pOffsets.instanceOffset + groupID;
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p.meshletOffset = mesh.meshletOffset;
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p.cullingOffset = pScene.cullingOffsets[p.instanceId];
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}
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GroupMemoryBarrierWithGroupSync();
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for (uint i = threadID; i < mesh.numMeshlets; i += TASK_GROUP_SIZE)
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{
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uint m = p.meshletOffset + i;
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uint cull = p.cullingOffset + i;
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MeshletDescription meshlet = pScene.meshletInfos[m];
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MeshletCullingInfo culling = pScene.cullingInfos[cull];
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if(culling.wasVisible())
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{
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uint index;
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InterlockedAdd(head, 1, index);
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p.culledMeshlets[index] = i;
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}
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}
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GroupMemoryBarrierWithGroupSync();
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DispatchMesh(head, 1, 1, p);
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}
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