private void RenderShadowMap(SpotLight spotLight)
{
this.GraphicsDevice.SetRenderTarget(spotLight.ShadowMap);
this.GraphicsDevice.Clear(Color.Transparent);
this.DepthWriterEffect.Parameters["View"].SetValue(spotLight.ViewMatrix);
this.DepthWriterEffect.Parameters["Projection"].SetValue(spotLight.ProjectionMatrix);
this.DepthWriterEffect.Parameters["LightPosition"].SetValue(spotLight.Position);
this.DepthWriterEffect.Parameters["DepthPrecision"].SetValue(spotLight.FarPlane);
this.RenderSceneForShadows();
}
/// <summary>
/// Parses a <see cref="SpotLight" /> from the given XML node.
/// </summary>
/// <param name="node">The XML node.</param>
/// <returns>A <see cref="SceneNode" /> instance.</returns>
public SceneNode ParseSpotLight(XElement node)
{
SpotLight spotLight = new SpotLight(
this.ParseVector3(node.Element("position")),
Quaternion.Identity,
Vector3.One,
this.ParseVector3(node.Element("direction")),
this.ParseColor(node.Element("color")),
float.Parse(node.Attribute("intensity").Value),
float.Parse(node.Element("clip").Attribute("near").Value),
float.Parse(node.Element("clip").Attribute("far").Value),
float.Parse(node.Element("projection").Attribute("field-of-view").Value),
float.Parse(node.Attribute("bias").Value),
bool.Parse(node.Attribute("cast-shadows").Value),
int.Parse(node.Attribute("resolution").Value));
SceneNode sceneNode = new SceneNode();
sceneNode.AttachEntity(spotLight);
return sceneNode;
}
