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升级6.4.升级水，升级天气

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This commit is contained in:
Bob.Song
2026-04-05 00:26:54 +08:00
parent 63bc9b5536
commit 5f7cbfb713
635 changed files with 34718 additions and 22567 deletions
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149
Packages/com.waveharmonic.crest/Runtime/Shaders/Library/Helpers.hlsl
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@@ -36,6 +36,29 @@ m_Blend(float2)
m_Blend(float3)
m_Blend(float4)
// Enforces casting hygiene.
uint ComputeSlice(uint slice, int offset, uint maximum)
{
// We cast to int since offset can be negative.
// We must cast all parameters otherwise problems occur.
return clamp((int)slice + offset, 0, (int)maximum);
}
float PositionToSliceNumber
(
const float2 i_PositionXZ,
const float i_MinimumSlice,
const float i_MaximumSlice,
const float i_WaterScale0
)
{
const float2 offset = abs(i_PositionXZ - g_Crest_WaterCenter.xz);
const float taxicab = max(offset.x, offset.y);
const float radius0 = i_WaterScale0;
const float slice = log2(max(taxicab / radius0, 1.0));
return clamp(slice, i_MinimumSlice, i_MaximumSlice);
}
uint PositionToSliceIndex
(
const float2 i_PositionXZ,
@@ -43,50 +66,106 @@ uint PositionToSliceIndex
const float i_WaterScale0
)
{
const float2 offsetFromCenter = abs(i_PositionXZ - g_Crest_WaterCenter.xz);
const float taxicab = max(offsetFromCenter.x, offsetFromCenter.y);
const float radius0 = i_WaterScale0;
float sliceNumber = log2(max(taxicab / radius0, 1.0));
// Don't use last slice - this is a "transition" slice used to cross fade waves
// between LOD resolutions to avoid pops.
sliceNumber = clamp(sliceNumber, i_MinimumSlice, g_Crest_LodCount - 2.0);
return floor(sliceNumber);
const float slice = PositionToSliceNumber
(
i_PositionXZ,
i_MinimumSlice,
g_Crest_LodCount - 2,
i_WaterScale0
);
return floor(slice);
}
void PosToSliceIndices
void PositionToSliceIndices
(
const float2 worldXZ,
const float minSlice,
const float maxSlice,
const float waterScale0,
out uint slice0,
out uint slice1,
out float lodAlpha
const float2 i_PositionXZ,
const uint i_MinimumSlice,
const uint i_MaximumSlice,
const float i_WaterScale0,
out uint o_Slice0,
out uint o_Slice1,
out float o_LodAlpha
)
{
const float2 offsetFromCenter = abs(worldXZ - g_Crest_WaterCenter.xz);
const float taxicab = max(offsetFromCenter.x, offsetFromCenter.y);
const float radius0 = waterScale0;
float sliceNumber = log2( max( taxicab / radius0, 1.0 ) );
sliceNumber = clamp( sliceNumber, minSlice, maxSlice );
const float slice = PositionToSliceNumber
(
i_PositionXZ,
i_MinimumSlice,
i_MaximumSlice,
i_WaterScale0
);
lodAlpha = frac(sliceNumber);
o_LodAlpha = frac(slice);
// Fixes artefact with DX12 & Vulkan. Likely a compiler bug.
// Sampling result appears to be all over the place.
slice0 = floor(sliceNumber) + 0.01;
slice1 = slice0 + 1;
o_Slice0 = floor(slice) + 0.01;
o_Slice1 = o_Slice0 + 1;
// lod alpha is remapped to ensure patches weld together properly. patches can vary significantly in shape (with
// strips added and removed), and this variance depends on the base density of the mesh, as this defines the strip width.
// using .15 as black and .85 as white should work for base mesh density as low as 16.
const float BLACK_POINT = 0.15, WHITE_POINT = 0.85;
lodAlpha = saturate((lodAlpha - BLACK_POINT) / (WHITE_POINT - BLACK_POINT));
o_LodAlpha = saturate((o_LodAlpha - BLACK_POINT) / (WHITE_POINT - BLACK_POINT));
if (slice0 == 0)
if (o_Slice0 == 0)
{
// blend out lod0 when viewpoint gains altitude. we're using the global g_Crest_MeshScaleLerp so check for LOD0 is necessary
lodAlpha = min(lodAlpha + g_Crest_MeshScaleLerp, 1.0);
o_LodAlpha = min(o_LodAlpha + g_Crest_MeshScaleLerp, 1.0);
}
}
// Use this when rendering a quad as the surface.
void MeshPositionToSliceIndices
(
const float2 i_PositionXZ,
const float i_MinimumSlice,
const float i_MaximumSlice,
const float i_WaterScale0,
out uint o_Slice0,
out uint o_Slice1,
out float o_LodAlpha
)
{
float slice = PositionToSliceNumber
(
i_PositionXZ,
i_MinimumSlice,
i_MaximumSlice + 1,
i_WaterScale0
);
o_LodAlpha = frac(slice);
uint extent = floor(slice);
slice = min(slice, i_MaximumSlice);
// Fixes artefact with DX12 & Vulkan. Likely a compiler bug.
// Sampling result appears to be all over the place.
o_Slice0 = floor(slice) + 0.01;
o_Slice1 = o_Slice0 + 1;
// lod alpha is remapped to ensure patches weld together properly. patches can vary significantly in shape (with
// strips added and removed), and this variance depends on the base density of the mesh, as this defines the strip width.
// using .15 as black and .85 as white should work for base mesh density as low as 16.
const float BLACK_POINT = 0.15, WHITE_POINT = 0.85;
o_LodAlpha = saturate((o_LodAlpha - BLACK_POINT) / (WHITE_POINT - BLACK_POINT));
if (o_Slice0 == 0)
{
// blend out lod0 when viewpoint gains altitude. we're using the global g_Crest_MeshScaleLerp so check for LOD0 is necessary
o_LodAlpha = min(o_LodAlpha + g_Crest_MeshScaleLerp, 1.0);
}
// Matches mesh solution.
// Comparing to maxSlice + 1 can make any maxSlice work, but no point.
if (extent == g_Crest_LodCount)
{
o_LodAlpha = 1.0;
}
}
@@ -115,11 +194,21 @@ bool IsUnderWater(const bool i_FrontFace, const int i_ForceUnderwater)
float FeatherWeightFromUV(const float2 i_uv, const half i_featherWidth)
{
float2 offset = abs(i_uv - 0.5);
float r_l1 = max(offset.x, offset.y) - (0.5 - i_featherWidth);
if (i_featherWidth > 0.0) r_l1 /= i_featherWidth;
float weight = saturate(1.0 - r_l1);
return weight;
const float2 offset = abs(i_uv - 0.5);
const float largest = max(offset.x, offset.y);
// Early exit (also handles zero feather).
if (largest > 0.5)
{
return 0.0;
}
else
{
float r_l1 = max(offset.x, offset.y) - (0.5 - i_featherWidth);
if (i_featherWidth > 0.0) r_l1 /= i_featherWidth;
float weight = saturate(1.0 - r_l1);
return weight;
}
}
bool WithinUV(const float2 i_UV)