void DrawShadowMap()
{
Instrument.Begin(InstrumentDrawShadowMap);
//----------------------------------------------------------------
// 準備
ShadowMap.Prepare(activeCamera);
//----------------------------------------------------------------
// 投影オブジェクトを収集
for (int i = 0; i < shadowCasters.Count; i++)
{
ShadowMap.TryAddShadowCaster(shadowCasters[i]);
}
//----------------------------------------------------------------
// シャドウ マップを描画
var lightDirection = activeDirectionalLight.Direction;
ShadowMap.Draw(ref lightDirection);
Instrument.End();
}
public Sssm(SpriteBatch spriteBatch, ShadowMap.Settings shadowMapSettings, Settings sssmSettings,
Effect shadowSceneEffect, Effect sssmEffect, Effect blurEffect)
: base(spriteBatch)
{
if (shadowMapSettings == null) throw new ArgumentNullException("shadowMapSettings");
if (sssmSettings == null) throw new ArgumentNullException("sssmSettings");
if (shadowSceneEffect == null) throw new ArgumentNullException("shadowSceneEffect");
if (sssmEffect == null) throw new ArgumentNullException("sssmEffect");
if (blurEffect == null) throw new ArgumentNullException("blurEffect");
this.shadowMapSettings = shadowMapSettings;
this.sssmSettings = sssmSettings;
this.sssmEffect = sssmEffect;
//================================================================
// シャドウ シーン
//----------------------------------------------------------------
// エフェクト
this.shadowSceneEffect = new ShadowSceneEffect(shadowSceneEffect);
this.shadowSceneEffect.DepthBias = shadowMapSettings.DepthBias;
this.shadowSceneEffect.SplitCount = shadowMapSettings.SplitCount;
this.shadowSceneEffect.ShadowMapSize = shadowMapSettings.Size;
this.shadowSceneEffect.ShadowMapTechnique = shadowMapSettings.Technique;
//----------------------------------------------------------------
// レンダ ターゲット
var pp = GraphicsDevice.PresentationParameters;
var width = (int) (pp.BackBufferWidth * sssmSettings.MapScale);
var height = (int) (pp.BackBufferHeight * sssmSettings.MapScale);
// メモ: ブラーをかける場合があるので RenderTargetUsage.PreserveContents で作成。
shadowSceneMap = new RenderTarget2D(GraphicsDevice, width, height,
false, SurfaceFormat.Color, DepthFormat.Depth24, 0, RenderTargetUsage.PreserveContents);
//================================================================
// スクリーン スペース シャドウ マッピング
//----------------------------------------------------------------
// エフェクト
shadowColorParameter = sssmEffect.Parameters["ShadowColor"];
shadowSceneMapParameter = sssmEffect.Parameters["ShadowSceneMap"];
currentPass = sssmEffect.CurrentTechnique.Passes[0];
//----------------------------------------------------------------
// ブラー
if (sssmSettings.BlurEnabled)
{
var blurSettings = sssmSettings.Blur;
blur = new GaussianBlur(blurEffect, spriteBatch, width, height, SurfaceFormat.Vector2,
blurSettings.Radius, blurSettings.Amount);
}
}
void DrawScene(ShadowMap shadowMap)
{
Instrument.Begin(InstrumentDrawScene);
GraphicsDevice.DepthStencilState = DepthStencilState.Default;
GraphicsDevice.SetRenderTarget(RenderTarget);
GraphicsDevice.Clear(new Color(BackgroundColor));
//================================================================
//
// オクルージョン クエリ
//
Instrument.Begin(InstrumentOcclusionQuery);
GraphicsDevice.BlendState = colorWriteDisable;
for (int i = 0; i < opaqueObjects.Count; i++)
{
opaqueObjects[i].UpdateOcclusion();
}
//for (int i = 0; i < translucentObjects.Count; i++)
// translucentObjects[i].UpdateOcclusion();
Instrument.End();
//================================================================
//
// 描画
//
Instrument.Begin(InstrumentDrawSceneObjects);
//----------------------------------------------------------------
// 不透明オブジェクト
GraphicsDevice.BlendState = BlendState.Opaque;
for (int i = 0; i < opaqueObjects.Count; i++)
{
var opaque = opaqueObjects[i];
if (opaque.Occluded)
{
OccludedSceneObjectCount++;
continue;
}
opaque.Draw();
}
//----------------------------------------------------------------
// 半透明オブジェクト
GraphicsDevice.BlendState = BlendState.AlphaBlend;
for (int i = 0; i < translucentObjects.Count; i++)
{
var translucent = translucentObjects[i];
if (translucent.Occluded)
{
OccludedSceneObjectCount++;
continue;
}
translucent.Draw();
}
//----------------------------------------------------------------
// スカイ スフィア
foreach (var obj in skySphereNode.Objects)
{
if (obj.Visible)
{
obj.Draw();
}
}
//if (skySphere != null && skySphere.Visible)
// skySphere.Draw();
Instrument.End();
GraphicsDevice.SetRenderTarget(null);
Instrument.End();
}