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

shaders/Lib/Programs/Gbuffers/Entities_VS.glsl

@@ -0,0 +1,34 @@
+// MinecraftPT — Entities Vertex Shader
+
+#include "/Lib/Settings.glsl"
+#include "/Lib/Utilities.glsl"
+
+out vec2 texcoord;
+out vec3 worldPos;
+out vec3 worldNormal;
+out vec3 vertexNormal;
+out vec4 color;
+out vec2 lightmap;
+flat out int blockId;
+flat out float blockLightLevel;
+
+void main(){
+	vec4 viewPos = gl_ModelViewMatrix * gl_Vertex;
+	vec4 wPos = gbufferModelViewInverse * viewPos;
+	worldPos = wPos.xyz;
+
+	vertexNormal = normalize(gl_NormalMatrix * gl_Normal);
+	worldNormal = normalize(mat3(gbufferModelViewInverse) * vertexNormal);
+
+	lightmap = gl_MultiTexCoord1.xy / 240.0;
+	lightmap = saturate(lightmap);
+
+	blockId = int(mc_Entity.x + 0.5);
+	blockLightLevel = at_midBlock.w;
+
+	texcoord = (gl_TextureMatrix[0] * gl_MultiTexCoord0).xy;
+	color = gl_Color;
+
+	gl_Position = gl_ProjectionMatrix * viewPos;
+	gl_Position.xy += taaJitter * gl_Position.w;
+}