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Changed the occlusion culling plane model to be on the XZ plane and adjusted the corner point computations

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Doug McDiarmid
2021-06-03 18:40:44 -07:00
parent 792176d764
commit 2449a9322d
4 changed files with 13 additions and 13 deletions
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Gems/Atom/RPI/Code/Source/RPI.Public/Culling.cpp
+5 -5
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@@ -574,18 +574,18 @@ namespace AZ
{
// convert to clip-space
Vector4 projectedBL = view.GetWorldToClipMatrix() * Vector4(occlusionPlane.first.m_cornerBL);
Vector4 projectedBR = view.GetWorldToClipMatrix() * Vector4(occlusionPlane.first.m_cornerBR);
Vector4 projectedTL = view.GetWorldToClipMatrix() * Vector4(occlusionPlane.first.m_cornerTL);
Vector4 projectedTR = view.GetWorldToClipMatrix() * Vector4(occlusionPlane.first.m_cornerTR);
Vector4 projectedBR = view.GetWorldToClipMatrix() * Vector4(occlusionPlane.first.m_cornerBR);
// store to float array
float verts[16];
projectedBL.StoreToFloat4(&verts[0]);
projectedBR.StoreToFloat4(&verts[4]);
projectedTL.StoreToFloat4(&verts[8]);
projectedTR.StoreToFloat4(&verts[12]);
projectedTL.StoreToFloat4(&verts[4]);
projectedTR.StoreToFloat4(&verts[8]);
projectedBR.StoreToFloat4(&verts[12]);
static uint32_t indices[6] = { 0, 2, 1, 2, 3, 1 };
static uint32_t indices[6] = { 0, 1, 2, 2, 3, 0 };
// render into the occlusion buffer, specifying BACKFACE_NONE so it functions as a double-sided occluder
maskedOcclusionCulling->RenderTriangles((float*)verts, indices, 2, nullptr, MaskedOcclusionCulling::BACKFACE_NONE);