/// <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)
{
// Call the base.
base.Render(gl, renderMode);
// Begin drawing a NURBS curve.
gl.BeginCurve(nurbsRenderer);
// Draw the curve.
gl.NurbsCurve(nurbsRenderer, // The internal nurbs object.
knots.Length, // Number of knots.
knots, // The knots themselves.
3, // The size of a vertex.
ControlPoints.ToFloatArray(), // The control points.
ControlPoints.Width, // The order, i.e degree + 1.
OpenGL.GL_MAP1_VERTEX_3); // Type of data to generate.
// End the curve.
gl.EndCurve(nurbsRenderer);
// Draw the control points.
ControlPoints.Draw(gl, DrawControlPoints, DrawControlGrid);
}
