/// <summary>
/// Draws the node.
/// </summary>
/// <param name="time">Time snapshot</param>
/// <param name="renderer">The renderer that draws the node.</param>
internal void DoDraw(GameTime time, SceneRenderer renderer)
{
foreach (var comp in this.Components)
{
if (comp.Enabled)
{
comp.PreRender(time, renderer);
}
}
foreach (var comp in this.Components)
{
if (comp.Enabled)
{
comp.Render(time, renderer);
}
}
// Pass the draw call to all children.
foreach (var child in this.Children)
{
child.DoDraw(time, renderer);
}
foreach (var comp in this.Components)
{
if (comp.Enabled)
{
comp.PostRender(time, renderer);
}
}
}
internal void PostRender(GameTime time, SceneRenderer renderer)
{
if (!this.Enabled)
{
return;
}
this.OnPostRender(time, renderer);
}
/// <summary>
/// Renders the scene node.
/// </summary>
/// <param name="time">Time snapshot</param>
/// <param name="renderer">The renderer that is used for drawing.</param>
protected override void OnRender(GameTime time, SceneRenderer renderer)
{
if (this.Model == null)
{
return;
}
renderer.Draw(this.Model, this.Node.Transform.WorldTransform, this.Node.Material);
}
/// <summary>
/// Draws the sky.
/// </summary>
/// <param name="renderer"></param>
/// <param name="camera"></param>
public override void Draw(SceneRenderer renderer, Camera camera)
{
GL.ClearColor(
this.Color.R,
this.Color.G,
this.Color.B,
this.Color.A);
GL.Clear(ClearBufferMask.ColorBufferBit);
}
/// <summary>
/// Draws the whole scene.
/// </summary>
/// <param name="camera">The camera setting for the scene.</param>
/// <param name="renderer">The renderer that draws the the scene.</param>
/// <param name="time">Time snapshot</param>
public void Draw(Camera camera, SceneRenderer renderer, GameTime time)
{
if (camera == null)
{
throw new ArgumentNullException("camera");
}
if (renderer == null)
{
throw new ArgumentNullException("renderer");
}
renderer.Begin();
this.root.DoDraw(time, renderer);
renderer.End(this, camera);
}
/// <summary>
/// Instantiates a new scene.
/// </summary>
/// <param name="flags">Specifies the behaviour of the world.</param>
public Scene(SceneCreationFlags flags)
{
this.root = SceneNode.CreateRoot(this);
this.defaultRenderer = new SimpleRenderer();
if (flags.HasFlag(SceneCreationFlags.EnablePhysics))
{
this.CollisionConfiguration = new DefaultCollisionConfiguration();
this.Dispatcher = new CollisionDispatcher(this.CollisionConfiguration);
this.Broadphase = new DbvtBroadphase();
this.Broadphase.OverlappingPairCache.SetInternalGhostPairCallback(new GhostPairCallback());
this.world = new DiscreteDynamicsWorld(this.Dispatcher, this.Broadphase, null, this.CollisionConfiguration);
// Register physics handler
Game.Current.UpdateNonScene += this.UpdatePhysics;
}
Game.Current.Disposing += this.Dispose;
}
/// <summary> /// Draws the sky. /// </summary> /// <param name="renderer">The renderer that is drawing the sky.</param> /// <param name="camera">The camera that shows the sky.</param> public abstract void Draw(SceneRenderer renderer, Camera camera);
/// <summary>
/// Postprocesses rendering of the scene node.
/// </summary>
/// <param name="time">Time snapshot</param>
/// <param name="renderer">The renderer that is used for drawing.</param>
protected virtual void OnPostRender(GameTime time, SceneRenderer renderer)
{
}
/// <summary>
/// Renders the scene node.
/// </summary>
/// <param name="time">Time snapshot</param>
/// <param name="renderer">The renderer that is used for drawing.</param>
protected override void OnRender(GameTime time, SceneRenderer renderer)
{
renderer.Light(this.Node.Transform.WorldPosition, this);
}
internal SceneNodeDrawEventArgs(GameTime time, SceneRenderer renderer)
{
this.time = time;
this.renderer = renderer;
}