Less messy code in cube.py

Author: einarf

demosys/opengl/geometry/cube.py

@@ -133,15 +133,19 @@ def cube(width, height, depth, normals=True, uvs=True):
         ], dtype=numpy.float32))
 
     vao = VAO("geometry:cube")
+    # Add buffers
     vao.add_array_buffer(GL.GL_FLOAT, pos)
     if normals:
         vao.add_array_buffer(GL.GL_FLOAT, normals)
     if uvs:
         vao.add_array_buffer(GL.GL_FLOAT, uvs)
+
+    # Map buffers
     vao.map_buffer(pos, "in_position", 3)
     if normals:
         vao.map_buffer(normals, "in_normal", 3)
     if uvs:
         vao.map_buffer(uvs, "in_uv", 2)
+
     vao.build()
     return vao