Variable fog of war

resources/shaders/fog.vs

@@ -0,0 +1,16 @@
+#version 330
+in vec3 vertexPosition;
+in vec2 vertexTexCoord;
+
+uniform mat4 matModel, matView, matProjection;
+
+out vec3 vWorldPos;
+out vec2 vTexCoord;
+
+void main()
+{
+    vec4 world = matModel * vec4(vertexPosition, 1.0);
+    vWorldPos = world.xyz;
+    vTexCoord = vertexTexCoord;
+    gl_Position = matProjection * matView * world;
+}