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Improve Global SDF static chunks cache to track SDF textures streaming

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This commit is contained in:
Wojciech Figat
2022-04-21 12:40:23 +02:00
parent b3d18f3b0e
commit ca935f4f08
2 changed files with 33 additions and 0 deletions
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32
Source/Engine/Renderer/GlobalSignDistanceFieldPass.cpp
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@@ -164,8 +164,32 @@ class GlobalSignDistanceFieldCustomBuffer : public RenderBuffers::CustomBuffer,
public:
CascadeData Cascades[4];
HashSet<ScriptingTypeHandle> ObjectTypes;
HashSet<GPUTexture*> SDFTextures;
GlobalSignDistanceFieldPass::BindingData Result;
void OnSDFTextureDeleted(ScriptingObject* object)
{
auto* texture = (GPUTexture*)object;
if (SDFTextures.Remove(texture))
{
texture->Deleted.Unbind<GlobalSignDistanceFieldCustomBuffer, &GlobalSignDistanceFieldCustomBuffer::OnSDFTextureDeleted>(this);
texture->ResidentMipsChanged.Unbind<GlobalSignDistanceFieldCustomBuffer, &GlobalSignDistanceFieldCustomBuffer::OnSDFTextureResidentMipsChanged>(this);
}
}
void OnSDFTextureResidentMipsChanged(GPUTexture* texture)
{
// Stop tracking texture streaming once it gets fully loaded
if (texture->ResidentMipLevels() == texture->MipLevels())
{
OnSDFTextureDeleted(texture);
// Clear static chunks cache
for (auto& cascade : Cascades)
cascade.StaticChunks.Clear();
}
}
FORCE_INLINE void OnSceneRenderingDirty(const BoundingBox& objectBounds)
{
for (auto& cascade : Cascades)
@@ -763,4 +787,12 @@ void GlobalSignDistanceFieldPass::RasterizeModelSDF(Actor* actor, const ModelBas
}
}
}
// Track streaming for SDF textures used in static chunks to invalidate cache
if (!dynamic && sdf.Texture->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);
_sdfData->SDFTextures.Add(sdf.Texture);
}
}

1
Source/Engine/Renderer/GlobalSurfaceAtlasPass.cpp
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@@ -371,6 +371,7 @@ bool GlobalSurfaceAtlasPass::Render(RenderContext& renderContext, GPUContext* co
const float distanceScalingStart = 2000.0f; // Distance from camera at which the tiles resolution starts to be scaled down
const float distanceScalingEnd = 5000.0f; // Distance from camera at which the tiles resolution end to be scaled down
const float distanceScaling = 0.1f; // The scale for tiles at distanceScalingEnd and further away
// TODO: add DetailsScale param to adjust quality of scene details in Global Surface Atlas
static_assert(GLOBAL_SURFACE_ATLAS_TILE_PADDING < minTileResolution, "Invalid tile size configuration.");
for (auto* scene : renderContext.List->Scenes)
{