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

shaders/final.fsh

@@ -0,0 +1,14 @@
+// MinecraftPT — final.fsh
+// Final pass: copies the tonemapped result (colortex0, written by composite80)
+// to the screen.
+
+#version 430 compatibility
+
+uniform sampler2D colortex0;
+
+void main(){
+	vec2 coord = gl_FragCoord.xy / vec2(viewWidth, viewHeight);
+	vec3 color = textureLod(colortex0, coord, 0.0).rgb;
+
+	gl_FragColor = vec4(color, 1.0);
+}