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Fix invalid border corner pixel copy in probe image

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This commit is contained in:
Wojciech Figat
2022-05-25 10:39:24 +02:00
parent 89ac470733
commit e6a06832bf
1 changed files with 10 additions and 5 deletions
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15
Source/Shaders/GI/DDGI.shader
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@@ -347,6 +347,9 @@ META_PERMUTATION_2(DDGI_PROBE_UPDATE_MODE=1, BORDER_ROW=0)
[numthreads(DDGI_PROBE_UPDATE_BORDERS_GROUP_SIZE, DDGI_PROBE_UPDATE_BORDERS_GROUP_SIZE, 1)]
void CS_UpdateBorders(uint3 DispatchThreadId : SV_DispatchThreadID)
{
#define COPY_PIXEL RWOutput[threadCoordinates] = RWOutput[copyCoordinates]
#define COPY_PIXEL_DEBUG RWOutput[threadCoordinates] = float4(5, 0, 0, 1)
uint probeSideLength = DDGI_PROBE_RESOLUTION + 2;
uint probeSideLengthMinusOne = probeSideLength - 1;
uint2 copyCoordinates = uint2(0, 0);
@@ -363,13 +366,13 @@ void CS_UpdateBorders(uint3 DispatchThreadId : SV_DispatchThreadID)
#if !BORDER_ROW
// Left corner
copyCoordinates.x = threadCoordinates.x + DDGI_PROBE_RESOLUTION;
copyCoordinates.y = threadCoordinates.y - sign(corner - 1) * DDGI_PROBE_RESOLUTION;
RWOutput[threadCoordinates] = RWOutput[copyCoordinates];
copyCoordinates.y = threadCoordinates.y - sign((int)corner - 1) * DDGI_PROBE_RESOLUTION;
COPY_PIXEL;
// Right corner
threadCoordinates.x += probeSideLengthMinusOne;
copyCoordinates.x = threadCoordinates.x - DDGI_PROBE_RESOLUTION;
RWOutput[threadCoordinates] = RWOutput[copyCoordinates];
COPY_PIXEL;
#endif
return;
}
@@ -385,7 +388,7 @@ void CS_UpdateBorders(uint3 DispatchThreadId : SV_DispatchThreadID)
uint offset = probeSideLengthMinusOne - (threadCoordinates.y % probeSideLength);
copyCoordinates = uint2(threadCoordinates.x + 1, probeStart + offset);
#endif
RWOutput[threadCoordinates] = RWOutput[copyCoordinates];
COPY_PIXEL;
#if BORDER_ROW
// Bottom row
@@ -396,7 +399,9 @@ void CS_UpdateBorders(uint3 DispatchThreadId : SV_DispatchThreadID)
threadCoordinates.x += probeSideLengthMinusOne;
copyCoordinates = uint2(threadCoordinates.x - 1, probeStart + offset);
#endif
RWOutput[threadCoordinates] = RWOutput[copyCoordinates];
COPY_PIXEL;
#undef COPY_PIXEL
#undef COPY_PIXEL_DEBUG
}
#endif