Cleanup shaders

shader/texture/bloomBlur.vert

@@ -1,10 +1,8 @@
 #version 450 core
-layout (location = 0) in vec2 pos;
-layout (location = 1) in vec2 texPos;
-uniform vec2 winSize;
+layout (std140, binding = 2) uniform PosTex { vec4 posTex[6]; };
 out vec2 vTexPos;
 void main()
 {
-  gl_Position = vec4(pos,0,1);
-  vTexPos = texPos;
+  gl_Position = vec4(posTex[gl_VertexID].xy,0,1);
+  vTexPos = posTex[gl_VertexID].zw;
 }