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Fixed meshlet culling

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Dynamitos
2024-03-31 10:21:09 +02:00
parent 82baf898a6
commit 578320cf07
16 changed files with 160 additions and 67 deletions
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res/shaders/MeshletBasePass.slang
+14 -15
View File
@@ -12,7 +12,7 @@ struct MeshPayload
groupshared MeshPayload p;
groupshared uint head;
groupshared float4x4 localToClip;
groupshared float4x4 localToView;
groupshared Frustum viewFrustum;
[numthreads(TASK_GROUP_SIZE, 1, 1)]
@@ -26,19 +26,18 @@ void taskMain(
if(threadID == 0)
{
head = 0;
localToClip = mul(pViewParams.projectionMatrix, mul(pViewParams.viewMatrix, instance.transformMatrix));
// Left
viewFrustum.sides[0].n = float3(1, 0, 0);
viewFrustum.sides[0].d = -1;
// Right
viewFrustum.sides[1].n = float3(-1, 0, 0);
viewFrustum.sides[1].d = -1;
// Top
viewFrustum.sides[2].n = float3(0, -1, 0);
viewFrustum.sides[2].d = -1;
// Bottom
viewFrustum.sides[3].n = float3(0, 1, 0);
viewFrustum.sides[3].d = -1;
localToView = mul(pViewParams.viewMatrix, instance.transformMatrix);
float3 origin = float3(0, 0, 0);
float3 corners[4] = {
screenToView(float4(pViewParams.screenDimensions, -1.0f, 1.0f)).xyz,
screenToView(float4(pViewParams.screenDimensions, -1.0f, 1.0f)).xyz,
screenToView(float4(pViewParams.screenDimensions, -1.0f, 1.0f)).xyz,
screenToView(float4(pViewParams.screenDimensions, -1.0f, 1.0f)).xyz
};
viewFrustum.sides[0] = computePlane(origin, corners[2], corners[0]);
viewFrustum.sides[1] = computePlane(origin, corners[1], corners[3]);
viewFrustum.sides[2] = computePlane(origin, corners[0], corners[1]);
viewFrustum.sides[3] = computePlane(origin, corners[3], corners[2]);
}
GroupMemoryBarrierWithGroupSync();
MeshData mesh = pScene.meshData[groupID];
@@ -48,7 +47,7 @@ void taskMain(
{
uint m = mesh.meshletOffset + i;
MeshletDescription meshlet = pScene.meshletInfos[m];
//if(meshlet.boundingBox.insideFrustum(localToClip, viewFrustum))
if(meshlet.bounding.insideFrustum(localToView, viewFrustum))
{
uint index;
InterlockedAdd(head, 1, index);