/// <summary>
/// インスタンスを生成します。
/// </summary>
/// <param name="device">デバイス。</param>
/// <param name="shadowMapEffect">シャドウ マップ エフェクト。</param>
public ShadowMap(GraphicsDevice device, ShadowMapEffect shadowMapEffect)
{
if (device == null) throw new ArgumentNullException("device");
GraphicsDevice = device;
this.shadowMapEffect = shadowMapEffect;
}
// コールバック。
void DrawShadowCasters(Matrix eyeView, Matrix eyeProjection, ShadowMapEffect effect)
{
Matrix viewProjection;
Matrix.Multiply(ref eyeView, ref eyeProjection, out viewProjection);
currentFrustum.Matrix = viewProjection;
ContainmentType containment;
currentFrustum.Contains(ref dudeBoxWorld, out containment);
if (containment != ContainmentType.Disjoint)
{
DrawShadowCaster(effect, dudeModel);
}
}
void DrawShadowCaster(ShadowMapEffect effect, Model model)
{
// シャドウ マップ エフェクトの準備。
effect.World = world;
effect.Apply();
foreach (var mesh in model.Meshes)
{
foreach (var meshPart in mesh.MeshParts)
{
GraphicsDevice.SetVertexBuffer(meshPart.VertexBuffer);
GraphicsDevice.Indices = meshPart.IndexBuffer;
GraphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList,
meshPart.VertexOffset, 0, meshPart.NumVertices, meshPart.StartIndex, meshPart.PrimitiveCount);
}
}
}
protected override void LoadContent()
{
shadowMapEffect = new ShadowMapEffect(Content.Load<Effect>("ShadowMap"));
gaussianBlurEffect = Content.Load<Effect>("GaussianBlur");
drawModelEffect = new DrawModelEffect(Content.Load<Effect>("DrawModel"));
drawModelEffect.AmbientColor = new Vector4(0.15f, 0.15f, 0.15f, 1.0f);
drawModelEffect.DepthBias = 0.001f;
drawModelEffect.LightDirection = lightDirection;
drawModelEffect.ShadowColor = new Vector3(0.5f, 0.5f, 0.5f);
spriteBatch = new SpriteBatch(GraphicsDevice);
spriteFont = Content.Load<SpriteFont>("hudFont");
gridModel = Content.Load<Model>("grid");
dudeModel = Content.Load<Model>("dude");
dudeBoxLocal = BoundingBoxHelper.Empty;
foreach (var mesh in dudeModel.Meshes)
{
BoundingBoxHelper.Merge(ref dudeBoxLocal, BoundingBox.CreateFromSphere(mesh.BoundingSphere));
}
for (int i = 0; i < shadowMaps.Length; i++)
{
shadowMaps[i] = new ShadowMap(GraphicsDevice, shadowMapEffect);
}
}