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Fix Global SDF objects culling into chunks to correctly match world geometry

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This commit is contained in:
Wojtek Figat
2023-02-18 23:15:50 +01:00
parent fe97429df8
commit 7a5d84a216
3 changed files with 10 additions and 10 deletions
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Content/Shaders/GI/DDGI.flax (Stored with Git LFS)
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Content/Shaders/GlobalSignDistanceField.flax (Stored with Git LFS)
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12
Source/Engine/Renderer/GlobalSignDistanceFieldPass.cpp
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@@ -549,8 +549,8 @@ bool GlobalSignDistanceFieldPass::Render(RenderContext& renderContext, GPUContex
_cascadeIndex = cascadeIndex;
_sdfData = &sdfData;
const float objectMargin = _voxelSize * GLOBAL_SDF_RASTERIZE_CHUNK_MARGIN;
_sdfDataOriginMax = sdfData.Origin - objectMargin;
_sdfDataOriginMax = sdfData.Origin + objectMargin;
_sdfDataOriginMin = -sdfData.Origin - objectMargin;
_sdfDataOriginMax = -sdfData.Origin + objectMargin;
{
PROFILE_CPU_NAMED("Draw");
BoundingBox cascadeBoundsWorld = cascadeBounds.MakeOffsetted(sdfData.Origin);
@@ -958,9 +958,9 @@ void GlobalSignDistanceFieldPass::RasterizeModelSDF(Actor* actor, const ModelBas
{
// Setup object data
BoundingBox objectBoundsCascade;
Vector3::Clamp(objectBounds.Minimum - _sdfDataOriginMin, _cascadeBounds.Minimum, _cascadeBounds.Maximum, objectBoundsCascade.Minimum);
Vector3::Clamp(objectBounds.Minimum + _sdfDataOriginMin, _cascadeBounds.Minimum, _cascadeBounds.Maximum, objectBoundsCascade.Minimum);
Vector3::Subtract(objectBoundsCascade.Minimum, _cascadeBounds.Minimum, objectBoundsCascade.Minimum);
Vector3::Clamp(objectBounds.Maximum - _sdfDataOriginMax, _cascadeBounds.Minimum, _cascadeBounds.Maximum, objectBoundsCascade.Maximum);
Vector3::Clamp(objectBounds.Maximum + _sdfDataOriginMax, _cascadeBounds.Minimum, _cascadeBounds.Maximum, objectBoundsCascade.Maximum);
Vector3::Subtract(objectBoundsCascade.Maximum, _cascadeBounds.Minimum, objectBoundsCascade.Maximum);
const Int3 objectChunkMin(objectBoundsCascade.Minimum / _chunkSize);
const Int3 objectChunkMax(objectBoundsCascade.Maximum / _chunkSize);
@@ -1019,9 +1019,9 @@ void GlobalSignDistanceFieldPass::RasterizeHeightfield(Actor* actor, GPUTexture*
{
// Setup object data
BoundingBox objectBoundsCascade;
Vector3::Clamp(objectBounds.Minimum - _sdfDataOriginMin, _cascadeBounds.Minimum, _cascadeBounds.Maximum, objectBoundsCascade.Minimum);
Vector3::Clamp(objectBounds.Minimum + _sdfDataOriginMin, _cascadeBounds.Minimum, _cascadeBounds.Maximum, objectBoundsCascade.Minimum);
Vector3::Subtract(objectBoundsCascade.Minimum, _cascadeBounds.Minimum, objectBoundsCascade.Minimum);
Vector3::Clamp(objectBounds.Maximum - _sdfDataOriginMax, _cascadeBounds.Minimum, _cascadeBounds.Maximum, objectBoundsCascade.Maximum);
Vector3::Clamp(objectBounds.Maximum + _sdfDataOriginMax, _cascadeBounds.Minimum, _cascadeBounds.Maximum, objectBoundsCascade.Maximum);
Vector3::Subtract(objectBoundsCascade.Maximum, _cascadeBounds.Minimum, objectBoundsCascade.Maximum);
const Int3 objectChunkMin(objectBoundsCascade.Minimum / _chunkSize);
const Int3 objectChunkMax(objectBoundsCascade.Maximum / _chunkSize);