Added bilateral filter

shaders/cBilateral.fx

@@ -0,0 +1,64 @@
+#include "shared/cGraphics.fxh"
+#include "shared/cImageProcessing.fxh"
+
+uniform float _Offset <
+    ui_label = "Sample Offset";
+    ui_type = "drag";
+    ui_min = 0.0;
+> = 0.0;
+
+uniform float _Radius <
+    ui_label = "Radius";
+    ui_type = "drag";
+    ui_min = 0.0;
+> = 16.0;
+
+uniform int _Samples <
+    ui_label = "Sample Count";
+    ui_type = "drag";
+    ui_min = 0;
+> = 16;
+
+CREATE_SAMPLER(SampleTempTex1, TempTex1_RGBA16F, LINEAR, CLAMP)
+
+float4 PS_Bilateral(VS2PS_Quad Input) : SV_TARGET0
+{
+    // Initialize variables we need to accumulate samples and calculate offsets
+    float4 OutputColor = 0.0;
+
+    // Offset and weighting attributes
+    float2 PixelSize = 1.0 / float2(BUFFER_WIDTH, BUFFER_HEIGHT);
+
+    // Get bilateral filter
+    float3 TotalWeight = 0.0;
+    float3 Center = tex2D(CShade_SampleColorTex, Input.Tex0).rgb;
+    for(int i = 0; i < _Samples; i++)
+    {
+        float2 Offset = SampleVogel(i, _Samples) * _Radius;
+        float3 Pixel = tex2D(CShade_SampleColorTex, Input.Tex0 + (Offset * PixelSize)).rgb;
+        float3 Weight = abs(1.0 - abs(Pixel - Center));
+        OutputColor += (Pixel * Weight);
+        TotalWeight += Weight;
+    }
+    OutputColor.rgb /= TotalWeight;
+
+    return OutputColor;
+}
+
+technique CShade_Bilateral
+{
+    pass GenMipLevels
+    {
+        VertexShader = VS_Quad;
+        PixelShader = PS_GenMipLevels;
+        RenderTarget0 = TempTex1_RGBA16F;
+    }
+
+    pass Bilateral
+    {
+        SRGBWriteEnable = WRITE_SRGB;
+
+        VertexShader = VS_Quad;
+        PixelShader = PS_Bilateral;
+    }
+}