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transparent shadow fix

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Turánszki János
2025-05-22 08:39:07 +02:00
parent c9fcd00f63
commit 843a6ec1af
2 changed files with 22 additions and 3 deletions
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WickedEngine/shaders/shadowHF.hlsli
+1 -1
View File
@@ -14,7 +14,7 @@ inline half3 sample_shadow(float2 uv, float cmp)
Texture2D<half4> texture_shadowatlas_transparent = bindless_textures_half4[descriptor_index(GetFrame().texture_shadowatlas_transparent_index)];
half4 transparent_shadow = texture_shadowatlas_transparent.SampleLevel(sampler_linear_clamp, uv, 0);
#ifdef TRANSPARENT_SHADOWMAP_SECONDARY_DEPTH_CHECK
if (transparent_shadow.a > cmp)
if (transparent_shadow.a < cmp)
#endif // TRANSPARENT_SHADOWMAP_SECONDARY_DEPTH_CHECK
{
shadow *= transparent_shadow.rgb;
WickedEngine/shaders/shadow_filterCS.hlsl
+21 -2
View File
@@ -24,7 +24,7 @@ void main(uint3 DTid : SV_DispatchThreadID)
const float2 bottomright = (filter.rect.xy + filter.rect.zw - border) * filter.atlas_resolution_rcp;
float filtered = 0;
float transparent_filtered = 0;
float4 transparent_filtered = 0;
const float2 spread_offset = filter.atlas_resolution_rcp * (2 + filter.spread * 8);
const uint soft_shadow_sample_count = (uint)lerp(8.0, 128.0, saturate(length(filter.spread)));
@@ -58,7 +58,26 @@ void main(uint3 DTid : SV_DispatchThreadID)
zzzz = saturate(zzzz);
zzzz = exp(exponential_shadow_bias * zzzz);
filtered += bilinear(zzzz, frac(sample_uv * filter.atlas_resolution));
transparent_filtered += shadowAtlas_transparent.SampleLevel(sampler_linear_clamp, sample_uv, 0);
float4 aaaa = shadowAtlas_transparent.GatherAlpha(sampler_linear_clamp, sample_uv);
if (ortho)
{
aaaa = 1 - aaaa;
}
else
{
const float2 origin_uv = inverse_lerp(uv_remap.xy, uv_remap.zw, sample_uv);
aaaa = float4(
distance(filter.eye, reconstruct_position(origin_uv, aaaa.x, filter.inverse_view_projection)),
distance(filter.eye, reconstruct_position(origin_uv, aaaa.y, filter.inverse_view_projection)),
distance(filter.eye, reconstruct_position(origin_uv, aaaa.z, filter.inverse_view_projection)),
distance(filter.eye, reconstruct_position(origin_uv, aaaa.w, filter.inverse_view_projection))
);
aaaa = (aaaa * filter.range_rcp);
}
aaaa = saturate(aaaa);
float a = bilinear(aaaa, frac(sample_uv * filter.atlas_resolution));
transparent_filtered += float4(shadowAtlas_transparent.SampleLevel(sampler_linear_clamp, sample_uv, 0).rgb, a);
}
filtered *= soft_shadow_sample_count_rcp;
transparent_filtered *= soft_shadow_sample_count_rcp;