You've already forked UnrealEngineUWP
mirror of
https://github.com/izzy2lost/UnrealEngineUWP.git
synced 2026-03-26 18:15:20 -07:00
f94472aea1
* First all cards are allocated to a temporary atlas of fixed size set by r.LumenScene.CardCaptureAtlasFactor * After cards are captured into temporary atlas, they are compressed into final BC compressed atlas. Compression can be disabled with r.LumenScene.SurfaceCache.Compress * Atlas clears were also converted to support clearing compressed surfaces * Atlas capture operations work on uploaded rect list, instead of a GPU generated card list * Renamed r.LumenSurfaceCache.* to r.LumenScene.SurfaceCache.* * Renamed LumenSceneLighting.usf to LumenSurfaceCache.usf * Renamed LumenScenePrefilter.cpp to LumenSurfaceCache.cpp Cuts down VRAM memory usage by 160mb Compression performance on console: ~0.18ms for 1M texels (~0.9ms with UAV aliasing path, which is currently disabled due to missing pieces in RHI) [CL 16160800 by Krzysztof Narkowicz in ue5-main branch]
43 lines
1.2 KiB
Plaintext
43 lines
1.2 KiB
Plaintext
// Copyright Epic Games, Inc. All Rights Reserved.
|
|
|
|
/*=============================================================================
|
|
RenderGraphUtilities.usf
|
|
=============================================================================*/
|
|
|
|
#include "Common.ush"
|
|
|
|
Buffer<uint4> RectCoordBuffer; // [MinX, MinY, MaxX, MaxY]
|
|
Buffer<uint4> RectUVBuffer;
|
|
|
|
float DownsampleFactor;
|
|
float2 InvViewSize;
|
|
float2 InvTextureSize;
|
|
|
|
bool2 VertMax(uint VertexId)
|
|
{
|
|
bool2 bVertMax;
|
|
bVertMax.x = VertexId == 1 || VertexId == 2 || VertexId == 4;
|
|
bVertMax.y = VertexId == 2 || VertexId == 4 || VertexId == 5;
|
|
return bVertMax;
|
|
}
|
|
|
|
void RasterizeToRectsVS(
|
|
in uint InstanceId : SV_InstanceID,
|
|
in uint VertexId : SV_VertexID,
|
|
out float4 OutPosition : SV_POSITION,
|
|
out float2 OutUV : TEXCOORD0)
|
|
{
|
|
uint4 RectCoord = RectCoordBuffer[InstanceId] * DownsampleFactor;
|
|
uint2 VertexCoord = VertMax(VertexId) ? RectCoord.zw : RectCoord.xy;
|
|
|
|
float4 RectUV = RectCoord * InvViewSize.xyxy;
|
|
#if RECT_UV
|
|
{
|
|
RectUV = RectUVBuffer[InstanceId] * DownsampleFactor * InvTextureSize.xyxy;
|
|
}
|
|
#endif
|
|
float2 VertexUV = VertMax(VertexId) ? RectUV.zw : RectUV.xy;
|
|
|
|
OutPosition = float4(float2(VertexCoord) * InvViewSize * float2(2.0f, -2.0f) + float2(-1.0, 1.0f), 0.0f, 1.0f);
|
|
OutUV = VertexUV;
|
|
} |