User:Eric B. and Rakim/vertex arrays

In OpenGL terminology, a vertex array is a list of vertices that form a number of polygons that can be drawn at once. The relevant GL commands are:

• void glDrawArrays(GLenum mode, GLint first, GLsizei count)
• void glVertexPointer(GLint sizei, GLenum type, GLsizei stride, const GLvoid * pointer)
• void glTexCoordPointer(GLint size, GLenum type,

GLsizei stride, const GLvoid * pointer)

• void glDrawElements(GLenum 'size, GLenum type, GLsizei stride, const GLvoid * pointer)
• void glEnable/glDisable(GLenum cap)
• void glEnableClientState/glDisableClientState(GLenum cap)

Using these commands, the drawing efficiency can more than double compared to using slower glBegin/glEnd sequences.

External links

• 2.8 Vertex Arrays
• Vertex Arrays