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Optimize GlobalSDF actors drawing CPU perf

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This commit is contained in:
Wojtek Figat
2022-11-06 20:38:16 +01:00
parent 9c7da16c1a
commit f2170a09cd
2 changed files with 22 additions and 17 deletions
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34
Source/Engine/Renderer/GlobalSignDistanceFieldPass.cpp
View File

@@ -539,11 +539,15 @@ bool GlobalSignDistanceFieldPass::Render(RenderContext& renderContext, GPUContex
// Draw all objects from all scenes into the cascade
_objectsBufferCount = 0;
_voxelSize = cascadeVoxelSize;
_chunkSize = _voxelSize * GLOBAL_SDF_RASTERIZE_CHUNK_SIZE;
_cascadeBounds = cascadeBounds;
_cascadeBounds.Minimum += 0.1f; // Adjust to prevent overflowing chunk keys (cascade bounds are used for clamping object bounds)
_cascadeBounds.Maximum -= 0.1f; // Adjust to prevent overflowing chunk keys (cascade bounds are used for clamping object bounds)
_cascadeIndex = cascadeIndex;
_sdfData = &sdfData;
const float objectMargin = _voxelSize * GLOBAL_SDF_RASTERIZE_CHUNK_MARGIN;
_sdfDataOriginMax = sdfData.Origin - objectMargin;
_sdfDataOriginMax = sdfData.Origin + objectMargin;
{
PROFILE_CPU_NAMED("Draw");
BoundingBox cascadeBoundsWorld = cascadeBounds.MakeOffsetted(sdfData.Origin);
@@ -945,18 +949,17 @@ void GlobalSignDistanceFieldPass::RasterizeModelSDF(Actor* actor, const ModelBas
if (!sdf.Texture)
return;
const bool dynamic = !GLOBAL_SDF_ACTOR_IS_STATIC(actor);
if (sdf.Texture->ResidentMipLevels() != 0)
const int32 residentMipLevels = sdf.Texture->ResidentMipLevels();
if (residentMipLevels != 0)
{
// Setup object data
BoundingBox objectBoundsCascade;
const float objectMargin = _voxelSize * GLOBAL_SDF_RASTERIZE_CHUNK_MARGIN;
Vector3::Clamp(objectBounds.Minimum - _sdfData->Origin - objectMargin, _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 - _sdfData->Origin + objectMargin, _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 float chunkSize = _voxelSize * GLOBAL_SDF_RASTERIZE_CHUNK_SIZE;
const Int3 objectChunkMin(objectBoundsCascade.Minimum / chunkSize);
const Int3 objectChunkMax(objectBoundsCascade.Maximum / chunkSize);
const Int3 objectChunkMin(objectBoundsCascade.Minimum / _chunkSize);
const Int3 objectChunkMax(objectBoundsCascade.Maximum / _chunkSize);
// Add object data
const uint16 dataIndex = RasterizeObjectsCache.Count();
@@ -994,7 +997,7 @@ void GlobalSignDistanceFieldPass::RasterizeModelSDF(Actor* actor, const ModelBas
}
// Track streaming for textures used in static chunks to invalidate cache
if (!dynamic && sdf.Texture->ResidentMipLevels() != sdf.Texture->MipLevels() && !_sdfData->SDFTextures.Contains(sdf.Texture))
if (!dynamic && residentMipLevels != sdf.Texture->MipLevels() && !_sdfData->SDFTextures.Contains(sdf.Texture))
{
sdf.Texture->Deleted.Bind<GlobalSignDistanceFieldCustomBuffer, &GlobalSignDistanceFieldCustomBuffer::OnSDFTextureDeleted>(_sdfData);
sdf.Texture->ResidentMipsChanged.Bind<GlobalSignDistanceFieldCustomBuffer, &GlobalSignDistanceFieldCustomBuffer::OnSDFTextureResidentMipsChanged>(_sdfData);
@@ -1007,18 +1010,17 @@ void GlobalSignDistanceFieldPass::RasterizeHeightfield(Actor* actor, GPUTexture*
if (!heightfield)
return;
const bool dynamic = !GLOBAL_SDF_ACTOR_IS_STATIC(actor);
if (heightfield->ResidentMipLevels() != 0)
const int32 residentMipLevels = heightfield->ResidentMipLevels();
if (residentMipLevels != 0)
{
// Setup object data
BoundingBox objectBoundsCascade;
const float objectMargin = _voxelSize * GLOBAL_SDF_RASTERIZE_CHUNK_MARGIN;
Vector3::Clamp(objectBounds.Minimum - _sdfData->Origin - objectMargin, _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 - _sdfData->Origin + objectMargin, _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 float chunkSize = _voxelSize * GLOBAL_SDF_RASTERIZE_CHUNK_SIZE;
const Int3 objectChunkMin(objectBoundsCascade.Minimum / chunkSize);
const Int3 objectChunkMax(objectBoundsCascade.Maximum / chunkSize);
const Int3 objectChunkMin(objectBoundsCascade.Minimum / _chunkSize);
const Int3 objectChunkMax(objectBoundsCascade.Maximum / _chunkSize);
// Add object data
const uint16 dataIndex = RasterizeObjectsCache.Count();
@@ -1057,7 +1059,7 @@ void GlobalSignDistanceFieldPass::RasterizeHeightfield(Actor* actor, GPUTexture*
}
// Track streaming for textures used in static chunks to invalidate cache
if (!dynamic && heightfield->ResidentMipLevels() != heightfield->MipLevels() && !_sdfData->SDFTextures.Contains(heightfield))
if (!dynamic && residentMipLevels != heightfield->MipLevels() && !_sdfData->SDFTextures.Contains(heightfield))
{
heightfield->Deleted.Bind<GlobalSignDistanceFieldCustomBuffer, &GlobalSignDistanceFieldCustomBuffer::OnSDFTextureDeleted>(_sdfData);
heightfield->ResidentMipsChanged.Bind<GlobalSignDistanceFieldCustomBuffer, &GlobalSignDistanceFieldCustomBuffer::OnSDFTextureResidentMipsChanged>(_sdfData);

5
Source/Engine/Renderer/GlobalSignDistanceFieldPass.h
View File

@@ -3,6 +3,7 @@
#pragma once
#include "RendererPass.h"
#include "Engine/Core/Math/Vector3.h"
/// <summary>
/// Global Sign Distance Field (SDF) rendering pass. Composites scene geometry into series of 3D volume textures that cover the world around the camera for global distance field sampling.
@@ -45,10 +46,12 @@ private:
Array<GPUTextureView*> _objectsTextures;
uint16 _objectsBufferCount;
int32 _cascadeIndex;
float _voxelSize;
float _voxelSize, _chunkSize;
BoundingBox _cascadeBounds;
BoundingBox _cascadeCullingBounds;
class GlobalSignDistanceFieldCustomBuffer* _sdfData;
Vector3 _sdfDataOriginMin;
Vector3 _sdfDataOriginMax;
public:
/// <summary>