public VAO(OpenGL gl, IShaderProgram program, VBO vbo)
{
_gl = gl;
_program = program;
VBO = vbo;
var buffers = new uint[1];
gl.GenVertexArrays(1, buffers);
Handle = buffers[0];
using (new Bind(program))
using (new Bind(this))
using (new Bind(vbo))
{
var stride = Vect3f.SizeInBytes * 2 + Vect4f.SizeInBytes;
gl.EnableVertexAttribArray(0);
gl.VertexAttribPointer(0, 3, OpenGL.GL_FLOAT, true, stride, IntPtr.Zero);
gl.BindAttribLocation(program.Handle, 0, "vert_position");
gl.EnableVertexAttribArray(1);
gl.VertexAttribPointer(1, 3, OpenGL.GL_FLOAT, true, stride, new IntPtr(Vect3f.SizeInBytes));
gl.BindAttribLocation(program.Handle, 1, "vert_normal");
gl.EnableVertexAttribArray(2);
gl.VertexAttribPointer(2, 4, OpenGL.GL_FLOAT, false, stride, new IntPtr(Vect3f.SizeInBytes * 2));
gl.BindAttribLocation(program.Handle, 2, "vert_colour");
}
}