Prevent artifacts in Global Surface Atlas when close to its capacity

mafiesto4 · mafiesto4 · commit 3b797ab1dc60 · 2023-02-19T17:36:44.000+01:00
diff --git a/Source/Engine/Renderer/GI/GlobalSurfaceAtlasPass.cpp b/Source/Engine/Renderer/GI/GlobalSurfaceAtlasPass.cpp
@@ -718,7 +718,7 @@ bool GlobalSurfaceAtlasPass::Render(RenderContext& renderContext, GPUContext* co
         }
 
         // Allocate buffer for culled objects (estimated size)
-        objectsBufferCapacity = Math::Min(Math::AlignUp<uint32>(objectsBufferCapacity * sizeof(uint32), 4096u), (uint32)MAX_int32);
+        objectsBufferCapacity = Math::Min(Math::AlignUp<uint32>(objectsBufferCapacity * sizeof(uint32) * 2, 4096u), (uint32)MAX_int32);
         if (!surfaceAtlasData.CulledObjectsBuffer)
             surfaceAtlasData.CulledObjectsBuffer = GPUDevice::Instance->CreateBuffer(TEXT("GlobalSurfaceAtlas.CulledObjectsBuffer"));
         if (surfaceAtlasData.CulledObjectsBuffer->GetSize() < objectsBufferCapacity)

Original file line number	Diff line number	Diff line change
`@@ -718,7 +718,7 @@ bool GlobalSurfaceAtlasPass::Render(RenderContext& renderContext, GPUContext* co`
`718`	`718`	`}`
`719`	`719`
`720`	`720`	`// Allocate buffer for culled objects (estimated size)`
`721`		`- objectsBufferCapacity = Math::Min(Math::AlignUp<uint32>(objectsBufferCapacity * sizeof(uint32), 4096u), (uint32)MAX_int32);`
	`721`	`+ objectsBufferCapacity = Math::Min(Math::AlignUp<uint32>(objectsBufferCapacity * sizeof(uint32) * 2, 4096u), (uint32)MAX_int32);`
`722`	`722`	`if (!surfaceAtlasData.CulledObjectsBuffer)`
`723`	`723`	`surfaceAtlasData.CulledObjectsBuffer = GPUDevice::Instance->CreateBuffer(TEXT("GlobalSurfaceAtlas.CulledObjectsBuffer"));`
`724`	`724`	`if (surfaceAtlasData.CulledObjectsBuffer->GetSize() < objectsBufferCapacity)`