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Optimize DDGI probes state data from R16G16B16A16_Float to R8G8B8A8_SNorm

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Wojciech Figat
2022-06-20 09:49:40 +02:00
parent 41a58f3f2c
commit 5239a2b410
5 changed files with 25 additions and 11 deletions
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12
Source/Shaders/GI/DDGI.shader
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@@ -58,7 +58,7 @@ float3 GetProbeRayDirection(DDGIData data, uint rayIndex)
#ifdef _CS_Classify
RWTexture2D<float4> RWProbesState : register(u0);
RWTexture2D<snorm float4> RWProbesState : register(u0);
Texture3D<float> GlobalSDFTex : register(t0);
Texture3D<float> GlobalSDFMip : register(t1);
@@ -79,6 +79,7 @@ void CS_Classify(uint3 DispatchThreadId : SV_DispatchThreadID)
// Load probe state and position
float4 probeState = RWProbesState[probeDataCoords];
probeState.xyz *= probesSpacing; // Probe offset is [-1;1] within probes spacing
float3 probeBasePosition = GetDDGIProbeWorldPosition(DDGI, CascadeIndex, probeCoords);
float3 probePosition = probeBasePosition + probeState.xyz;
probeState.w = DDGI_PROBE_STATE_ACTIVE;
@@ -128,7 +129,8 @@ void CS_Classify(uint3 DispatchThreadId : SV_DispatchThreadID)
probeState.xyz = float3(0, 0, 0);
}
}
probeState.xyz /= probesSpacing;
RWProbesState[probeDataCoords] = probeState;
}
@@ -144,7 +146,7 @@ ByteAddressBuffer GlobalSurfaceAtlasChunks : register(t2);
Buffer<float4> GlobalSurfaceAtlasCulledObjects : register(t3);
Texture2D GlobalSurfaceAtlasDepth : register(t4);
Texture2D GlobalSurfaceAtlasTex : register(t5);
Texture2D<float4> ProbesState : register(t6);
Texture2D<snorm float4> ProbesState : register(t6);
TextureCube Skybox : register(t7);
// Compute shader for tracing rays for probes using Global SDF and Global Surface Atlas.
@@ -217,7 +219,7 @@ groupshared float CachedProbesTraceDistance[DDGI_TRACE_RAYS_LIMIT];
groupshared float3 CachedProbesTraceDirection[DDGI_TRACE_RAYS_LIMIT];
RWTexture2D<float4> RWOutput : register(u0);
Texture2D<float4> ProbesState : register(t0);
Texture2D<snorm float4> ProbesState : register(t0);
Texture2D<float4> ProbesTrace : register(t1);
// Compute shader for updating probes irradiance or distance texture.
@@ -453,7 +455,7 @@ void CS_UpdateBorders(uint3 DispatchThreadId : SV_DispatchThreadID)
#include "./Flax/Random.hlsl"
#include "./Flax/LightingCommon.hlsl"
Texture2D<float4> ProbesState : register(t4);
Texture2D<snorm float4> ProbesState : register(t4);
Texture2D<float4> ProbesDistance : register(t5);
Texture2D<float4> ProbesIrradiance : register(t6);