stochastic transparency improvement

WickedEngine/shaders/globals.hlsli

@@ -85,6 +85,10 @@ inline float4 blue_noise(uint2 pixel)
 {
 	return frac(texture_bluenoise[pixel % 128].rgba + g_xFrame_BlueNoisePhase);
 }
+inline float4 blue_noise(uint2 pixel, float depth)
+{
+	return frac(texture_bluenoise[pixel % 128].rgba + g_xFrame_BlueNoisePhase * depth);
+}
 
 // Helpers:
 

WickedEngine/shaders/hairparticlePS_prepass.hlsl

@@ -5,6 +5,8 @@ TEXTURE2D(texture_color, float4, TEXSLOT_ONDEMAND0);
 
 float2 main(VertexToPixel input) : SV_TARGET
 {
+	const float lineardepth = input.pos.w;
+
 	clip(dither(input.pos.xy + GetTemporalAASampleRotation()) - input.fade);
 
 	float4 color = texture_color.Sample(sampler_linear_clamp,input.tex);
@@ -12,7 +14,7 @@ float2 main(VertexToPixel input) : SV_TARGET
 	float alphatest = g_xMaterial.alphaTest;
 	if (g_xFrame_Options & OPTION_BIT_TEMPORALAA_ENABLED)
 	{
-		alphatest = clamp(blue_noise(input.pos.xy).r, 0, 0.99);
+		alphatest = clamp(blue_noise(input.pos.xy, lineardepth).r, 0, 0.99);
 	}
 	clip(color.a - alphatest);
 

WickedEngine/shaders/objectHF.hlsli

@@ -1373,7 +1373,7 @@ float4 main(PixelInput input, in bool is_frontface : SV_IsFrontFace) : SV_TARGET
 	float alphatest = GetMaterial().alphaTest;
 	if (g_xFrame_Options & OPTION_BIT_TEMPORALAA_ENABLED)
 	{
-		alphatest = clamp(blue_noise(pixel).r, 0, 0.99);
+		alphatest = clamp(blue_noise(pixel, lineardepth).r, 0, 0.99);
 	}
 	clip(color.a - alphatest);
 #endif // DISABLE_ALPHATEST

WickedEngine/wiVersion.cpp

@@ -9,7 +9,7 @@ namespace wiVersion
 	// minor features, major updates, breaking compatibility changes
 	const int minor = 56;
 	// minor bug fixes, alterations, refactors, updates
-	const int revision = 56;
+	const int revision = 57;
 
 	const std::string version_string = std::to_string(major) + "." + std::to_string(minor) + "." + std::to_string(revision);