///// <summary>
///// Occurs before this object and all of its children's rendering.
///// </summary>
//public event EventHandler BeforeRendering;
///// <summary>
///// Occurs before this object and all of its children's rendering.
///// </summary>
//internal void DoBeforeRendering()
//{
// EventHandler handler = this.BeforeRendering;
// if (handler != null)
// {
// handler(this, new EventArgs());
// }
//}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
public void Render(RenderEventArgs arg)
{
RendererBase renderer = this.Renderer;
if (renderer != null)
{
renderer.Render(arg);
}
}
/// <summary>
/// Render something.
/// </summary>
/// <param name="arg"></param>
protected virtual void DoRender(RenderEventArgs arg)
{
if (this.locationUpdated)
{
this.viewportState.X = this.Location.X;
this.viewportState.Y = this.Location.Y;
this.scissorTestState.X = this.Location.X;
this.scissorTestState.Y = this.Location.Y;
this.locationUpdated = false;
}
if (this.sizeUpdated)
{
this.viewportState.Width = this.Size.Width;
this.viewportState.Height = this.Size.Height;
this.scissorTestState.Width = this.Size.Width;
this.scissorTestState.Height = this.Size.Height;
this.sizeUpdated = false;
}
this.viewportState.On();
this.scissorTestState.On();
int count = this.stateList.Count;
for (int i = 0; i < count; i++)
{
this.stateList[i].On();
}
if (this.ClearDepthBuffer)
{
// 把所有在此之前渲染的内容都推到最远。
// Push all rendered stuff to farest position.
OpenGL.Clear(OpenGL.GL_DEPTH_BUFFER_BIT);
}
RendererBase renderer = this.Renderer;
if (renderer != null)
{
renderer.Render(arg);
}
for (int i = count - 1; i >= 0; i--)
{
this.stateList[i].Off();
}
this.scissorTestState.Off();
this.viewportState.Off();
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
protected override void DoRender(RenderEventArgs arg)
{
this.viewportSwitch.X = this.Location.X;
this.viewportSwitch.Y = this.Location.Y;
this.viewportSwitch.Width = this.Size.Width;
this.viewportSwitch.Height = this.Size.Height;
this.scissorTestSwitch.X = this.Location.X;
this.scissorTestSwitch.Y = this.Location.Y;
this.scissorTestSwitch.Width = this.Size.Width;
this.scissorTestSwitch.Height = this.Size.Height;
this.viewportSwitch.On();
this.scissorTestSwitch.On();
int count = this.switchList.Count;
for (int i = 0; i < count; i++)
{
this.switchList[i].On();
}
// 把所有在此之前渲染的内容都推到最远。
// Push all rendered stuff to farest position.
OpenGL.Clear(OpenGL.GL_DEPTH_BUFFER_BIT);
RendererBase renderer = this.Renderer;
if (renderer != null)
{
renderer.Render(arg);
}
for (int i = count - 1; i >= 0; i--)
{
this.switchList[i].Off();
}
this.scissorTestSwitch.Off();
this.viewportSwitch.Off();
}