port from perforce

hgplus/ShaderMinifier/tests/real/the wind under my wings/f_godrays.cpp

@@ -0,0 +1,229 @@
+#version 110
+#define float4 vec4
+#define float3 vec3
+#define float2 vec2
+#define oUV gl_TexCoord[0]
+#define tex3D texture3D
+#define tex2D texture2D
+#define tex1D texture1D
+
+				uniform sampler2D texture2d_1;
+/*				uniform sampler1D texture_transfer_function;
+				uniform sampler1D texture_palette_function;
+
+					
+				uniform float3 VolumeSize;
+				uniform float3 RelativeSize;
+				uniform float3 Registration_Offset;
+				uniform float pet_alpha_blending;
+				uniform float3 MousePos;
+				uniform int Projection_mode;
+uniform float3 InVolumePosition;
+				uniform float3 Windowing_Levels;
+
+				uniform float isosurface;
+uniform float Sharpening;
+
+*/
+
+				uniform float Limit;
+
+
+
+
+
+
+
+void main (void) 
+{
+
+
+
+
+float v=0.102;
+
+float dss=1.0-pow(length(oUV.xy-float2 (0.5,0.5)),1.0);
+float2 dirr=float2 (0.5,0.5);
+//dss=1;
+//dss*=1.5;
+
+v*=dss*dss;
+//v=0.002;
+float2 MX=float2 (v,0.0);
+float2 MU=float2 (0.0,v);
+dirr.y*=1.0;
+ vec4 cl=float4 (0.0);
+/*
+for (int t=0;t<7;t++) { 
+float ff=float (t)/(20.0f);
+//    cl+=0.11*(1-ff)*tex2D (texture2d_1,ff*dirr+(1-ff)*oUV.st);
+cl+=0.19*(1-ff)*tex2D (texture2d_1,ff*dirr+(1-ff)*oUV.st);
+
+}
+
+0.05,0.1,0.15,0.2,0.25,0.3
+*/
+//float cl=0.3;
+float4 sti=tex2D (texture2d_1,oUV.st);
+cl+=0.191*tex2D (texture2d_1,oUV.st);
+
+cl+=0.191*(0.95)*tex2D (texture2d_1,0.93*0.075*dirr+(1.0-0.93*0.075)*oUV.st);
+cl+=0.191*(0.9)*tex2D (texture2d_1,0.93*0.15*dirr+(1.0-0.93*0.015)*oUV.st);
+cl+=0.191*(0.85)*tex2D (texture2d_1,0.93*0.225*dirr+(1.0-0.93*0.225)*oUV.st);
+
+cl+=0.191*(0.8)*tex2D (texture2d_1,0.93*0.300*dirr+(1.0-0.93*0.300)*oUV.st);
+cl+=0.191*(0.75)*tex2D (texture2d_1,0.93*0.375*dirr+(1.0-0.93*0.375)*oUV.st);
+cl+=0.191*(0.7)*tex2D (texture2d_1,0.93*0.450*dirr+(1.0-0.93*0.450)*oUV.st);
+
+cl=tex2D(texture2d_1,oUV.st)+cl*0.7*float4 (0.4,0.6,1.0,0.0);
+//cl*=dss*sti;
+
+
+
+
+
+
+
+
+
+
+
+//float4 cl;
+//cl=tex2D (texture2d_1,oUV.xy)*1.0*vec4 (0.0,0.0,1.0,0.0);
+cl=vec4 (0.0);
+int count=0;
+float2 DirV=oUV.xy-float2 (0.5,0.5);
+//DirV=-normalize (DirV);
+DirV*=-1.0;
+	for (int x=0;x<18;x++){
+count++;
+
+float2 Dist=DirV*float(x)*0.05;
+float4 res=tex2D(texture2d_1,oUV.xy+Dist);
+res*=res*1.5;
+//res*=1.0+0.5*sin(oUV.x*12.0);
+//res*=1.0+0.7*sin(oUV.y*24.0);
+cl+=res;
+}
+
+cl/=float (count);
+cl=tex2D(texture2d_1,oUV.st)*0.9+cl*3.5;
+//*float4 (0.4,0.6,1.0,0.0);
+//cl*=float4 (1.0,1.0,1.0,1.0);
+
+
+
+/* 
+//Depth blurring
+
+float dpth=0;
+int count=0;
+for (int y=-4;y<5;y++) {
+	for (int x=-4;x<5;x++){
+count++;
+float2 dd=float2 (x,y)*0.7;
+
+//dd=ray.xy*5.0;
+
+float2 Dist=dd*0.0015;
+dpth+=tex2D(texture2d_2,UV.xy+Dist).x;
+}
+}
+dpth/=float (count);
+//dpth=sin(dpth*3.14159);
+dpth+=0.1;
+dpth=pow(dpth,6.0);
+//dpth+=Limit;
+dpth=1.1-dpth;
+//if (dpth<0.7) dpth=0.0;
+count=0;
+cl=vec4(0.0);
+dpth=clamp(dpth,0.0,1.0);
+
+dpth=Limit+((1.0-Limit)-(Limit))*dpth;
+
+if (dpth>0.02) { 
+for (int y=-4;y<5;y++) {
+	for (int x=-4;x<5;x++){
+count++;
+
+float2 dd=float2 (x,y);
+
+//if ( (x)==(y)) {	dd*=120.0;}
+
+float2 Dist=dd*0.0015*dpth;
+cl+=tex2D(texture2d_1,UV.xy+Dist);
+}
+}
+
+cl/=float (count);
+}
+else
+cl=tex2D(texture2d_1,UV.xy);
+
+
+
+*/
+
+
+
+
+
+
+
+
+
+gl_FragData[0]=cl;
+	gl_FragData[1]=cl;
+
+/*
+float3 currentuv;
+
+
+
+if (Projection_mode==0)  {
+currentuv.xy=oUV.st;
+currentuv.z=0.0+InVolumePosition.z;
+}
+else
+if (Projection_mode==1)  {
+currentuv.xz=oUV.st;
+currentuv.y=0.0+InVolumePosition.y;
+}
+else
+if (Projection_mode==2)  {
+currentuv.zy=oUV.ts;
+currentuv.x=0.0+InVolumePosition.x;
+}
+float4 original= tex3D (texture3d,currentuv);
+float divisor=1.0/(Windowing_Levels.y-Windowing_Levels.x);
+
+
+
+
+original-=Windowing_Levels.x*float4 (1,1,1,1);
+original*=divisor;
+
+
+//original.x=max (0.0,min (1.0,original.x));
+
+
+gl_FragColor=currentuv.xyzz;
+//gl_FragColor=float4 (1.0,0.0,0.0,1.0);
+//gl_FragColor*=Sharpening;
+*/
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+