add game&rawdata

gamedata/shaders/r3/fluid_edge_detect.ps

@@ -0,0 +1,70 @@
+#include "fluid_common_render.h"
+
+//////////////////////////////////////////////////////////////////////////////////////////
+//	Pixel
+// A full-screen edge detection pass to locate artifacts
+//	these artifacts are located on a downsized version of the rayDataTexture
+// We use a smaller texture both to accurately find all the depth artifacts 
+//  when raycasting to this smaller size and to save on the cost of this pass
+// Use col.a to find depth edges of objects occluding the smoke
+// Use col.g to find the edges where the camera near plane cuts the smoke volume
+//
+float4 main(VS_OUTPUT_EDGE vIn) : SV_Target
+{
+
+    // We need eight samples (the centre has zero weight in both kernels).
+    float4 col;
+    col = rayDataTexSmall.Sample(samPointClamp, vIn.textureUV00); 
+    float g00 = col.a;
+    if(col.g < 0)
+        g00 *= -1;
+    col = rayDataTexSmall.Sample(samPointClamp, vIn.textureUV01); 
+    float g01 = col.a;
+    if(col.g < 0)
+        g01 *= -1;
+    col = rayDataTexSmall.Sample(samPointClamp, vIn.textureUV02); 
+    float g02 = col.a;
+    if(col.g < 0)
+        g02 *= -1;
+    col = rayDataTexSmall.Sample(samPointClamp, vIn.textureUV10); 
+    float g10 = col.a;
+    if(col.g < 0)
+        g10 *= -1;
+    col = rayDataTexSmall.Sample(samPointClamp, vIn.textureUV12); 
+    float g12 = col.a;
+    if(col.g < 0)
+        g12 *= -1;
+    col = rayDataTexSmall.Sample(samPointClamp, vIn.textureUV20); 
+    float g20 = col.a;
+    if(col.g < 0)
+        g20 *= -1;
+    col = rayDataTexSmall.Sample(samPointClamp, vIn.textureUV21); 
+    float g21 = col.a;
+    if(col.g < 0)
+        g21 *= -1;
+    col = rayDataTexSmall.Sample(samPointClamp, vIn.textureUV22); 
+    float g22 = col.a;
+    if(col.g < 0)
+        g22 *= -1;
+    	
+    // Sobel in horizontal dir.
+    float sx = 0;
+    sx -= g00;
+    sx -= g01 * 2;
+    sx -= g02;
+    sx += g20;
+    sx += g21 * 2;
+    sx += g22;
+    // Sobel in vertical dir - weights are just rotated 90 degrees.
+    float sy = 0;
+    sy -= g00;
+    sy += g02;
+    sy -= g10 * 2;
+    sy += g12 * 2;
+    sy -= g20;
+    sy += g22;
+
+    float e = EdgeDetectScalar(sx, sy, edgeThreshold);
+    return float4(e,e,e,1);
+
+}