/// <summary>
/// Creates a default light and enables the active shader
/// </summary>
private void SetupShader(RhGLShaderProgram shader, RMModel model, ViewportInfo viewport)
{
// Check to make sure we actually have an active shader...
if (shader != null)
{
// Enable...
shader.Enable();
// Now setup and initialize frustum and lighting...
int near, far;
viewport.GetScreenPort(out near, out far);
viewport.SetScreenPort((int)Frame.Left, (int)Frame.Right, (int)Frame.Bottom, (int)Frame.Top, near, far);
shader.SetupViewport(viewport);
Rhino.Geometry.Light light = CreateDefaultLight();
shader.SetupLight(light);
light.Dispose();
}
}