func FeedbackBuffer(size int32, xtype uint32, buffer *float32) {
	C.glowFeedbackBuffer(gpFeedbackBuffer, (C.GLsizei)(size), (C.GLenum)(xtype), (*C.GLfloat)(unsafe.Pointer(buffer)))
}
func FeedbackBuffer(size int32, xtype uint32, buffer *float32) {
	C.glowFeedbackBuffer(gpFeedbackBuffer, (C.GLsizei)(size), (C.GLenum)(xtype), (*C.GLfloat)(unsafe.Pointer(buffer)))
}
func FeedbackBuffer ( size int32 , xtype uint32 , buffer * float32 ) { C . glowFeedbackBuffer ( gpFeedbackBuffer , ( C . GLsizei ) ( size ) , ( C . GLenum ) ( xtype ) , ( * C . GLfloat ) ( unsafe . Pointer ( buffer ) ) ) }
// controls feedback mode
controls feedback mode