// ColorSlice uses glColorPointer to bind an element of the currently // bound buffer at the given index. See VertexAttribSlice for more details. // // Precondition: VBO bound to ARRAY_BUFFER target containing data of array type dummy func ColorSlice(dummy interface{}, dummy_index int) error { data, err := sliceAttrib(dummy, dummy_index) if err != nil { return err } C.glColorPointer(C.GLint(data.Elements), C.GLenum(data.Gltype), C.GLsizei(data.Stride), unsafe.Pointer(data.Offset)) return nil }