Simplify ceiling oclusions

shader/cloud/basic.vert

@@ -1,18 +1,15 @@
 #version 450 core
 layout (location = 0) in vec4 posID;
 layout (location = 1) in vec4 col;
-//layout (location = 2) in vec4 centerSize;
 layout (location = 2) in vec4 controls;
 layout (std140, binding = 0) uniform TheMat { mat4 theMat; } ;
 out vec4 vPosID;
 out vec4 vCol;
-//out vec4 vCenterSize;
 out vec4 vControls;
 void main()
 {
   gl_Position = theMat * vec4(posID.xyz,1);
   vPosID = posID;
   vCol = col;
-  //vCenterSize = centerSize;
   vControls = controls;
 }