0027258: Configuration - generate built-in replacement for mandatory resource files

[occt.git] / src / Shaders / Shaders_RaytraceSmooth_fs.pxx

diff --git a/src/Shaders/Shaders_RaytraceSmooth_fs.pxx b/src/Shaders/Shaders_RaytraceSmooth_fs.pxx
new file mode 100644 (file)
index 0000000..d263f0f
--- /dev/null
+++ b/src/Shaders/Shaders_RaytraceSmooth_fs.pxx
@@ -0,0 +1,83 @@
+// This file has been automatically generated from resource file src/Shaders/RaytraceSmooth.fs
+
+static const char Shaders_RaytraceSmooth_fs[] =
+  "//! Input ray-traced image.\n"
+  "uniform sampler2D uFSAAInputTexture;\n"
+  "\n"
+  "//! Number of accumulated FSAA samples.\n"
+  "uniform int uSamples;\n"
+  "\n"
+  "//! Output pixel color.\n"
+  "out vec4 OutColor;\n"
+  "\n"
+  "#define LUM_DIFFERENCE 0.085f\n"
+  "\n"
+  "// =======================================================================\n"
+  "// function : main\n"
+  "// purpose  :\n"
+  "// =======================================================================\n"
+  "void main (void)\n"
+  "{\n"
+  "#ifndef PATH_TRACING\n"
+  "\n"
+  "  int aPixelX = int (gl_FragCoord.x);\n"
+  "  int aPixelY = int (gl_FragCoord.y);\n"
+  "\n"
+  "  // Adjust FLIPTRI pattern used for adaptive FSAA\n"
+  "  float anOffsetX = mix (uOffsetX, -uOffsetX, float (aPixelX % 2));\n"
+  "  float anOffsetY = mix (uOffsetY, -uOffsetY, float (aPixelY % 2));\n"
+  "\n"
+  "  vec4 aClr0 = texelFetch (uFSAAInputTexture, ivec2 (aPixelX + 0, aPixelY + 0), 0);\n"
+  "  vec4 aClr1 = texelFetch (uFSAAInputTexture, ivec2 (aPixelX + 0, aPixelY - 1), 0);\n"
+  "  vec4 aClr2 = texelFetch (uFSAAInputTexture, ivec2 (aPixelX + 0, aPixelY + 1), 0);\n"
+  "\n"
+  "  vec4 aClr3 = texelFetch (uFSAAInputTexture, ivec2 (aPixelX + 1, aPixelY + 0), 0);\n"
+  "  vec4 aClr4 = texelFetch (uFSAAInputTexture, ivec2 (aPixelX + 1, aPixelY - 1), 0);\n"
+  "  vec4 aClr5 = texelFetch (uFSAAInputTexture, ivec2 (aPixelX + 1, aPixelY + 1), 0);\n"
+  "\n"
+  "  vec4 aClr6 = texelFetch (uFSAAInputTexture, ivec2 (aPixelX - 1, aPixelY + 0), 0);\n"
+  "  vec4 aClr7 = texelFetch (uFSAAInputTexture, ivec2 (aPixelX - 1, aPixelY - 1), 0);\n"
+  "  vec4 aClr8 = texelFetch (uFSAAInputTexture, ivec2 (aPixelX - 1, aPixelY + 1), 0);\n"
+  "\n"
+  "  float aLum = dot (LUMA, aClr0.xyz);\n"
+  "\n"
+  "  bool aRender = abs (aClr1.w - aClr0.w) > LUM_DIFFERENCE ||\n"
+  "                 abs (aClr2.w - aClr0.w) > LUM_DIFFERENCE ||\n"
+  "                 abs (aClr3.w - aClr0.w) > LUM_DIFFERENCE ||\n"
+  "                 abs (aClr4.w - aClr0.w) > LUM_DIFFERENCE ||\n"
+  "                 abs (aClr5.w - aClr0.w) > LUM_DIFFERENCE ||\n"
+  "                 abs (aClr6.w - aClr0.w) > LUM_DIFFERENCE ||\n"
+  "                 abs (aClr7.w - aClr0.w) > LUM_DIFFERENCE ||\n"
+  "                 abs (aClr8.w - aClr0.w) > LUM_DIFFERENCE;\n"
+  "\n"
+  "  if (!aRender)\n"
+  "  {\n"
+  "    aRender = abs (dot (LUMA, aClr1.xyz) - aLum) > LUM_DIFFERENCE ||\n"
+  "              abs (dot (LUMA, aClr2.xyz) - aLum) > LUM_DIFFERENCE ||\n"
+  "              abs (dot (LUMA, aClr3.xyz) - aLum) > LUM_DIFFERENCE ||\n"
+  "              abs (dot (LUMA, aClr4.xyz) - aLum) > LUM_DIFFERENCE ||\n"
+  "              abs (dot (LUMA, aClr5.xyz) - aLum) > LUM_DIFFERENCE ||\n"
+  "              abs (dot (LUMA, aClr6.xyz) - aLum) > LUM_DIFFERENCE ||\n"
+  "              abs (dot (LUMA, aClr7.xyz) - aLum) > LUM_DIFFERENCE ||\n"
+  "              abs (dot (LUMA, aClr8.xyz) - aLum) > LUM_DIFFERENCE;\n"
+  "  }\n"
+  "\n"
+  "  vec4 aColor = aClr0;\n"
+  "\n"
+  "  if (aRender)\n"
+  "  {\n"
+  "    SRay aRay = GenerateRay (vPixel + vec2 (anOffsetX, anOffsetY));\n"
+  "\n"
+  "    vec3 aInvDirect = 1.f / max (abs (aRay.Direct), SMALL);\n"
+  "\n"
+  "    aInvDirect = vec3 (aRay.Direct.x < 0.f ? -aInvDirect.x : aInvDirect.x,\n"
+  "                       aRay.Direct.y < 0.f ? -aInvDirect.y : aInvDirect.y,\n"
+  "                       aRay.Direct.z < 0.f ? -aInvDirect.z : aInvDirect.z);\n"
+  "\n"
+  "    aColor = mix (aClr0, clamp (Radiance (aRay, aInvDirect), 0.f, 1.f), 1.f / uSamples);\n"
+  "  }\n"
+  "\n"
+  "  OutColor = aColor;\n"
+  "\n"
+  "#endif\n"
+  "}\n";