marshalTransformFeedbackBufferMode :: TransformFeedbackBufferMode -> GLenum
marshalTransformFeedbackBufferMode x = case x of
   InterleavedAttribs -> gl_INTERLEAVED_ATTRIBS
   SeperateAttribs -> gl_SEPARATE_ATTRIBS
marshalTransformFeedbackBufferMode :: TransformFeedbackBufferMode -> GLenum
marshalTransformFeedbackBufferMode x = case x of
   InterleavedAttribs -> gl_INTERLEAVED_ATTRIBS
   SeperateAttribs -> gl_SEPARATE_ATTRIBS
marshalTransformFeedbackBufferMode x = case x of
   InterleavedAttribs -> gl_INTERLEAVED_ATTRIBS
   SeperateAttribs -> gl_SEPARATE_ATTRIBS