# OpenGL - How Vertex Array Is Associated With the Buffer
## Synopsis
```
void glVertexAttribPointer(
GLuint index,
GLint size,
GLenum type,
GLboolean normalized,
GLsizei stride,
const GLvoid *pointer
);
```
pointer is the offset in basic-machine units (i.e., bytes) from the start of the buffer object currently bound to the `GL_ARRAY_BUFFER` target for the first set of values in the array.