/// <summary>
/// update cameras.
/// </summary>
public void Update(GameTime gameTime)
{
// Update the current camera
ViewCamera viewCamera = CurrentCamera;
for (int i = 0; i < viewCamera.Count; i++)
{
CameraBase camera = viewCamera.GetCamera(i);
camera.Update(gameTime);
}
// Update scene models in the render context
renderContext.Update(gameTime);
}
/// <summary>
/// draws every scene node which is attached to the scene node.
/// Draws in order of 3D scene node, 2D scene node, and overlay text.
/// When there are more than one view cameras that have registered
/// to the 3D scene, Viewport is applied to the 3D scene node,
/// which is drawn as many as the number of the view camera.
/// When render event handler has been registered, it is called
/// before or after drawing.
/// </summary>
public override void Draw(GameTime gameTime)
{
// Set to render information
renderTracer.Device = FrameworkCore.Game.GraphicsDevice;
renderTracer.GameTime = gameTime;
renderTracer.SpriteBatch = SpriteBatch;
renderTracer.Fog = FrameworkCore.Viewer.BasicFog;
renderTracer.Lighting = FrameworkCore.Viewer.BasicLighting;
ClearBackBuffer();
if (RenderingPreDrawScene != null)
{
RenderingPreDrawScene(this, EventArgs.Empty);
}
// 3D Render
{
if (RenderingPreDraw3D != null)
{
RenderingPreDraw3D(this, EventArgs.Empty);
}
// process multiple camera
for (int i = 0; i < FrameworkCore.CurrentCamera.Count; i++)
{
ViewCamera viewCamera = FrameworkCore.Viewer.CurrentCamera;
CameraBase camera = viewCamera.GetCamera(i);
renderTracer.View = camera.ViewMatrix;
renderTracer.ViewInvert = Matrix.Invert(camera.ViewMatrix);
renderTracer.Projection = camera.ProjectionMatrix;
// Update frustum
UpdateFrustum(camera.ViewMatrix, camera.ProjectionMatrix);
renderTracer.Frustum = this.Frustum;
// Set to each viewport
ApplyViewport(viewCamera.GetViewport(i));
// Render the 3D scene
Draw3D(renderTracer);
}
// restore to default viewport
ApplyViewport(FrameworkCore.DefaultViewport);
if (RenderingPostDraw3D != null)
{
RenderingPostDraw3D(this, EventArgs.Empty);
}
}
// 2D Render
{
if (RenderingPreDraw2D != null)
{
RenderingPreDraw2D(this, EventArgs.Empty);
}
// Render the 2D scene
Draw2D(renderTracer);
if (RenderingPostDraw2D != null)
{
RenderingPostDraw2D(this, EventArgs.Empty);
}
}
if (RenderingPostDrawScene != null)
{
RenderingPostDrawScene(this, EventArgs.Empty);
}
// Display overlaped texts or others
DrawOverlayText(gameTime);
// Draw other components
base.Draw(gameTime);
}