Initial commit: Minecraft 光追着色器包（从零实现的 path tracing）

shaders/Lib/IndividualFunctions/WaterFog.glsl

@@ -0,0 +1,15 @@
+// MinecraftPT — Water Fog
+// Underwater volumetric fog with scattering colors.
+
+#ifndef WATER_FOG_GLSL
+#define WATER_FOG_GLSL
+
+vec3 GetWaterFogColor(vec3 worldPos){
+	return vec3(WATER_SCATTERING_R, WATER_SCATTERING_G, WATER_SCATTERING_B) * WATER_SCATTERING_DENSITY;
+}
+
+float GetWaterFogDensity(vec3 worldPos){
+	return WATER_SCATTERING_DENSITY;
+}
+
+#endif