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Reduce shadow atlas fragmentation to favor bigger tile sizes

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This commit is contained in:
Wojtek Figat
2024-08-07 17:14:31 +02:00
parent 15d6f9861c
commit 28ce224caa
1 changed files with 4 additions and 4 deletions
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8
Source/Engine/Renderer/ShadowsPass.cpp
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@@ -22,7 +22,7 @@
#define SHADOWS_POSITION_ERROR METERS_TO_UNITS(0.1f) #define SHADOWS_POSITION_ERROR METERS_TO_UNITS(0.1f)
#define SHADOWS_ROTATION_ERROR 0.9999f #define SHADOWS_ROTATION_ERROR 0.9999f
#define SHADOWS_MAX_TILES 6 #define SHADOWS_MAX_TILES 6
#define SHADOWS_MIN_RESOLUTION 16 #define SHADOWS_MIN_RESOLUTION 32
#define SHADOWS_MAX_STATIC_ATLAS_CAPACITY_TO_DEFRAG 0.7f #define SHADOWS_MAX_STATIC_ATLAS_CAPACITY_TO_DEFRAG 0.7f
#define SHADOWS_BASE_LIGHT_RESOLUTION(atlasResolution) atlasResolution / MAX_CSM_CASCADES // Allow to store 4 CSM cascades in a single row in all cases #define SHADOWS_BASE_LIGHT_RESOLUTION(atlasResolution) atlasResolution / MAX_CSM_CASCADES // Allow to store 4 CSM cascades in a single row in all cases
#define NormalOffsetScaleTweak METERS_TO_UNITS(1) #define NormalOffsetScaleTweak METERS_TO_UNITS(1)
@@ -55,11 +55,11 @@ struct ShadowsAtlasRectTile : RectPackNode<uint16>
uint16 QuantizeResolution(float input) uint16 QuantizeResolution(float input)
{ {
uint16 output = Math::FloorToInt(input); uint16 output = Math::FloorToInt(input);
uint16 alignment = 16; uint16 alignment = 32;
if (output >= 512) if (output >= 512)
alignment = 64; alignment = 128;
else if (output >= 256) else if (output >= 256)
alignment = 32; alignment = 64;
output = Math::AlignDown<uint16>(output, alignment); output = Math::AlignDown<uint16>(output, alignment);
return output; return output;
} }