vertexAttribIPointer method
Implementation
void vertexAttribIPointer(int index, int size, int type, int stride, int pointer){
startCheck('vertexAttribIPointer');
var _pointer = calloc<Int32>();
_pointer.value = pointer;
gl.glVertexAttribIPointer(index, size, type, stride, _pointer.cast<Void>());
calloc.free(_pointer);
checkError('vertexAttribIPointer');
}