public ShadowMapRenderer(string effectName)
{
if (effectName == null)
{
throw new ArgumentNullException("effectName");
}
this.effectName = effectName;
atlases = new FastListStruct <ShadowMapAtlasTexture>(16);
shadowMapTextures = new PoolListStruct <LightShadowMapTexture>(16, CreateLightShadowMapTexture);
LightComponentsWithShadows = new Dictionary <LightComponent, LightShadowMapTexture>(16);
opaqueRenderItems = new RenderItemCollection(512, false);
transparentRenderItems = new RenderItemCollection(512, true);
renderers = new Dictionary <Type, ILightShadowMapRenderer>();
ShadowCamera = new CameraComponent {
UseCustomViewMatrix = true, UseCustomProjectionMatrix = true
};
// Creates a model renderer for the shadows casters
shadowModelComponentRenderer = new ModelComponentRenderer(effectName + ".ShadowMapCaster")
{
CullingMode = CullingMode.None,
Callbacks =
{
UpdateMeshes = FilterCasters,
}
};
shadowCasterParameters = new ParameterCollection();
shadowCasterParameters.Set(ParadoxEffectBaseKeys.ExtensionPostVertexStageShader, ShadowMapCasterExtension);
}
public void Attach(ModelComponentRenderer modelRenderer)
{
// TODO: Add logic to plug shadow mapping into
}
protected override void DrawCore(RenderContext context)
{
modelProcessor = SceneInstance.GetCurrent(context).GetProcessor <ModelProcessor>();
lightProcessor = SceneInstance.GetCurrent(context).GetProcessor <LightProcessor>();
// No light processors means no light in the scene, so we can early exit
if (lightProcessor == null || modelProcessor == null)
{
return;
}
// Not in the context of a SceneCameraRenderer? just exit
sceneCameraRenderer = context.Tags.Get(SceneCameraRenderer.Current);
sceneCamera = context.Tags.Get(CameraComponentRenderer.Current);
if (sceneCameraRenderer == null || sceneCamera == null)
{
return;
}
sceneCullingMask = sceneCameraRenderer.CullingMask;
// Setup the callback on the ModelRenderer and shadow map LightGroupRenderer
if (!isModelComponentRendererSetup)
{
// TODO: Check if we could discover declared renderers in a better way than just hacking the tags of a component
var modelRenderer = ModelComponentRenderer.GetAttached(sceneCameraRenderer);
if (modelRenderer == null)
{
return;
}
modelRenderer.Callbacks.PreRenderModel += PrepareRenderModelForRendering;
modelRenderer.Callbacks.PreRenderMesh += PreRenderMesh;
// TODO: Make this pluggable
// TODO: Shadows should work on mobile platforms
if (context.GraphicsDevice.Features.Profile >= GraphicsProfile.Level_10_0 &&
(Platform.Type == PlatformType.Windows || Platform.Type == PlatformType.WindowsStore || Platform.Type == PlatformType.Windows10))
{
shadowMapRenderer = new ShadowMapRenderer(modelRenderer.EffectName);
shadowMapRenderer.Renderers.Add(typeof(LightDirectional), new LightDirectionalShadowMapRenderer());
shadowMapRenderer.Renderers.Add(typeof(LightSpot), new LightSpotShadowMapRenderer());
}
isModelComponentRendererSetup = true;
}
// Collect all visible lights
CollectVisibleLights();
// Draw shadow maps
if (shadowMapRenderer != null)
{
shadowMapRenderer.Draw(context, visibleLightsWithShadows);
}
// Prepare active renderers in an ordered list (by type and shadow on/off)
CollectActiveLightRenderers(context);
currentModelLightShadersPermutationEntry = null;
currentModelShadersParameters = null;
currentShadowReceiver = true;
// Clear the cache of parameter entries
lightParameterEntries.Clear();
parameterCollectionEntryPool.Clear();
// Clear association between model and lights
modelToLights.Clear();
// Clear all data generated by shader entries
foreach (var shaderEntry in shaderEntries)
{
shaderEntry.Value.ResetGroupDatas();
}
}