/// <summary>
/// Render to the provided instance of OpenGL.
/// </summary>
/// <param name="gl">The OpenGL instance.</param>
/// <param name="renderMode">The render mode.</param>
public override void Render(OpenGL gl, RenderMode renderMode)
{
base.Render(gl, renderMode);
// Begin drawing a NURBS surface.
gl.BeginSurface(nurbsRenderer);
// Draw the surface.
gl.NurbsSurface(nurbsRenderer, // The internal nurbs object.
sKnots.Length, // Number of s-knots.
sKnots, // The s-knots themselves.
tKnots.Length, // The number of t-knots.
tKnots, // The t-knots themselves.
ControlPoints.Width * 3, // The size of a row of control points.
3, // The size of a control points.
ControlPoints.ToFloatArray(), // The control points.
ControlPoints.Width, // The order, i.e degree + 1.
ControlPoints.Height, // The order, i.e degree + 1.
OpenGL.GL_MAP2_VERTEX_3); // Type of data to generate.
// End the surface.
gl.EndSurface(nurbsRenderer);
// Draw the control points.
ControlPoints.Draw(gl, DrawControlPoints, DrawControlGrid);
}
