You've already forked UnrealEngineUWP
mirror of
https://github.com/izzy2lost/UnrealEngineUWP.git
synced 2026-03-26 18:15:20 -07:00
c5a2f9e0ac
#rb trivial #preflight skip #robomerge FNNC [CL 19106309 by graham wihlidal in ue5-main branch]
80 lines
2.2 KiB
Plaintext
80 lines
2.2 KiB
Plaintext
// Copyright Epic Games, Inc. All Rights Reserved.
|
|
|
|
#include "Common.ush"
|
|
#include "HTileEncoding.ush"
|
|
|
|
// TODO: This shader shouldn't know about Nanite scene vs. material depth (just the HTile bits to visualize)
|
|
#include "./Nanite/NaniteDataDecode.ush"
|
|
|
|
#if PLATFORM_SUPPORTS_HTILE_LOOKUP
|
|
|
|
// TODO: Move some place common
|
|
|
|
uint BitMask(uint Count)
|
|
{
|
|
return (1u << Count) - 1u;
|
|
}
|
|
|
|
int ExtractSigned(uint Bits, uint Offset, uint Count)
|
|
{
|
|
return (Bits >> Offset) & BitMask(Count);
|
|
}
|
|
|
|
uint ExtractUnsigned(uint Bits, uint Offset, uint Count)
|
|
{
|
|
return (Bits >> Offset) & BitMask(Count);
|
|
}
|
|
|
|
float ExtractFloat(uint Bits, uint Offset, uint Count)
|
|
{
|
|
return ExtractUnsigned(Bits, Offset, Count) / (float)BitMask(Count);
|
|
}
|
|
|
|
#endif // PLATFORM_SUPPORTS_HTILE_LOOKUP
|
|
|
|
StructuredBuffer<uint> HTileBuffer;
|
|
RWTexture2D<float4> HTileDisplay;
|
|
uint4 HTileConfig;
|
|
|
|
[numthreads(8, 8, 1)]
|
|
void VisualizeHTile(uint3 PixelPos : SV_DispatchThreadID)
|
|
{
|
|
#if PLATFORM_SUPPORTS_HTILE_LOOKUP
|
|
const uint PlatformConfig = HTileConfig.x;
|
|
const uint PixelsWide = HTileConfig.y;
|
|
const uint VisualizeMode = HTileConfig.z;
|
|
const bool HiStencil = IsHiStencilTileConfig(PlatformConfig);
|
|
const bool CompareMinZ = true;
|
|
|
|
const uint TileIndex = ComputeTileOffset(PixelPos.xy, PixelsWide, PlatformConfig);
|
|
|
|
const uint HTileEnc = HTileBuffer[TileIndex];
|
|
|
|
// 14bit fixed point
|
|
const uint2 TileMinMaxFP = DecodeTileMinMax(HTileEnc, HiStencil, CompareMinZ);
|
|
const float2 TileMinMax = TileMinMaxFP / (float2)((1 << 14) - 1);
|
|
|
|
float Result = 0.0f;
|
|
if (VisualizeMode == NANITE_VISUALIZE_SCENE_Z_MIN || VisualizeMode == NANITE_VISUALIZE_MATERIAL_Z_MIN)
|
|
{
|
|
Result = pow(TileMinMax.x, 0.11f);
|
|
}
|
|
else if (VisualizeMode == NANITE_VISUALIZE_SCENE_Z_MAX || VisualizeMode == NANITE_VISUALIZE_MATERIAL_Z_MAX)
|
|
{
|
|
Result = pow(TileMinMax.y, 0.11f);
|
|
}
|
|
else if (VisualizeMode == NANITE_VISUALIZE_SCENE_Z_DELTA || VisualizeMode == NANITE_VISUALIZE_MATERIAL_Z_DELTA)
|
|
{
|
|
Result = pow(TileMinMax.y - TileMinMax.x, 0.11f);
|
|
}
|
|
/*else if (VisualizeMode == NANITE_VISUALIZE_SCENE_Z_MASK || VisualizeMode == NANITE_VISUALIZE_MATERIAL_Z_MASK)
|
|
{
|
|
Result = ExtractFloat(HTileEnc, 0, 4) / 15.0f;
|
|
}*/
|
|
|
|
HTileDisplay[PixelPos.xy] = float4(Result, 0, 0, 0);
|
|
#else
|
|
HTileDisplay[PixelPos.xy] = float4(0, 0, 0, 0);
|
|
#endif
|
|
}
|