Pre-multiply V and P matrices

floor-vert.glsl

@@ -3,8 +3,7 @@
 layout(location = 0) out vec3 frag_normal;
 
 layout(push_constant) uniform vp_t {
-	mat4 view;
-	mat4 proj;
+	mat4 transform;
 } vp;
 
 vec2 vertices[4] = vec2[](
@@ -16,6 +15,6 @@ vec2 vertices[4] = vec2[](
 
 void main() {
 	const vec2 pos = 3 * vertices[gl_VertexIndex];
-	gl_Position = vp.proj * vp.view * vec4(pos.x, 0, pos.y, 1); 
+	gl_Position = vp.transform * vec4(pos.x, 0, pos.y, 1);
 	frag_normal = vec3(0, 1, 0);
 }