public void Draw(DrawState state)
{
SetupShadowShader(state);
//set render mode to shadow map
state.PushDrawFlag(new ModelInstance.ShaderProviderFlag(this.shaderProvider));
state.PushDrawFlag(TutorialRenderMode.DrawShadow);
//Push the shadow map camera as a post-culler.
//This way, anything not within the frustum of the shadow map
//camera will not be drawn with the shadow shader
state.PushPostCuller(this.shadowMapTarget.Camera);
//set an additive blending mode
state.PushRenderState();
state.RenderState.AlphaBlend = AlphaBlendState.Additive;
state.RenderState.DepthColourCull.DepthWriteEnabled = false;
//draw the shadowed scene
scene.Draw(state);
state.PopRenderState();
state.PopPostCuller();
state.PopDrawFlag <TutorialRenderMode>();
state.PopDrawFlag <ModelInstance.ShaderProviderFlag>();
}
public void Draw(DrawState state)
{
//set the draw flags up, which will control rendering
//this will make the models render depth
state.PushDrawFlag(new ModelInstance.ShaderProviderFlag(this.shaderProvider));
state.PushDrawFlag(TutorialRenderMode.DepthOutput);
//draw the scene
scene.Draw(state);
//reset the flags
state.PopDrawFlag <ModelInstance.ShaderProviderFlag>();
state.PopDrawFlag <TutorialRenderMode>();
}
protected override void Draw(DrawState state)
{
//draw the shadow map texture first,
drawShadowDepth.Draw(state);
//apply the blur filter to the shadow texture
shadowDepthBlurFilter.Draw(state);
//set a global light collection (that all models will use)
state.PushDrawFlag(new MaterialLightCollection.LightCollectionFlag(ambientLight));
//draw the scene to the screen
drawToScreen.Draw(state);
//reset the flag
state.PopDrawFlag <MaterialLightCollection.LightCollectionFlag>();
}
