/// <inheritdoc />
protected override void PopulateEffectHook(GameTime gameTime, Camera camera, string drawMode)
{
base.PopulateEffectHook(gameTime, camera, drawMode);
NormalMappedEffect nmEffect = XiHelper.Cast<NormalMappedEffect>(Effect);
nmEffect.NormalMap = NormalMap;
nmEffect.NormalMapEnabled = normalMapEnabled;
}
/// <inheritdoc />
protected override void DrawHook(GameTime gameTime, Camera camera, string drawMode)
{
if (drawMode != "Normal") return;
PopulateEffect(camera, drawMode);
// OPTIMIZATION: cache these properties
GraphicsDevice device = Game.GraphicsDevice;
ModelMesh mesh = Mesh;
ModelMeshPart part = Part;
Effect effect = Effect;
BeginRenderState();
effect.Begin();
foreach (EffectPass pass in effect.CurrentTechnique.Passes)
{
pass.Begin();
device.Vertices[0].SetSource(mesh.VertexBuffer, part.StreamOffset, part.VertexStride);
device.Indices = mesh.IndexBuffer;
device.VertexDeclaration = part.VertexDeclaration;
device.DrawIndexedPrimitives(
PrimitiveType.TriangleList,
part.BaseVertex,
0,
part.NumVertices,
part.StartIndex,
part.PrimitiveCount);
pass.End();
}
effect.End();
EndRenderState();
}
/// <inheritdoc />
protected override void PopulateEffectHook(GameTime gameTime, Camera camera, string drawMode)
{
base.PopulateEffectHook(gameTime, camera, drawMode);
ShadowReceiverEffect srEffect = XiHelper.Cast<ShadowReceiverEffect>(Effect);
Matrix worldTransform;
Actor.GetBoneAbsoluteWorld(Mesh.ParentBone.Index, out worldTransform);
srEffect.PopulateShadowing(this, ref worldTransform, Game.Scene.CachedDirectionalLights);
}
private void PopulateEffect(Camera camera, string drawMode)
{
BasicEffect basicEffect = XiHelper.Cast<BasicEffect>(Effect);
basicEffect.TrySetCurrentTechnique("BasicEffect");
PopulateEffectTransform(camera, basicEffect);
PopulateEffectFogging(basicEffect);
PopulateEffectLighting(basicEffect);
}
private static bool IsShadowing(Camera shadowCamera, Surface surface)
{
return
surface.HasDrawProperties(DrawProperties.Shadowing) &&
(
surface.Boundless ||
shadowCamera.Contains(surface.BoundingBox) != ContainmentType.Disjoint
);
}
/// <summary>
/// Populate the transform parameters of a BasicEffect.
/// </summary>
/// <param name="camera">The camera from which to extract the view and projection.</param>
/// <param name="world">The world transform.</param>
/// <param name="effect">The effect to populate.</param>
public static void PopulateTransform(this BasicEffect effect, Camera camera, ref Matrix world)
{
XiHelper.ArgumentNullCheck(camera);
Matrix view;
Matrix projection;
camera.GetView(out view);
camera.GetProjection(out projection);
effect.World = world;
effect.View = view;
effect.Projection = projection;
}
private void PopulateEffectTransform(Camera camera, LightReceiverEffect lrEffect)
{
Matrix worldTransform;
Actor.GetBoneAbsoluteWorld(Mesh.ParentBone.Index, out worldTransform);
lrEffect.PopulateTransform(camera, ref worldTransform);
}
/// <summary>
/// PreDraw the items in the DrawBounds. Must be called once before Draw.
/// </summary>
/// <param name="gameTime">The current game time.</param>
/// <param name="camera">The camera from which the scene is viewed.</param>
/// <remarks>
/// Pre-drawing is done in a different phase than normal drawing. This is because of the
/// following performance constraint -
///
/// Intermixing scene drawing with pre-drawing involves switching render targets while
/// persisting their data. Persisting render target data during render target changes
/// involves copying the render target buffer to temporary texture buffers on the Xbox 360,
/// then copying it back. This is just too slow so long as the Xbox 360 or a device with
/// the same constraint is a deployment target.
///
/// For more info, please read -
/// http://blogs.msdn.com/shawnhar/archive/2007/11/21/rendertarget-changes-in-xna-game-studio-2-0.aspx
///
/// At some point it might make sense to have a PreDrawOrder property so that items can be
/// consistently pre-drawn in a certain order rather than the random order in which they
/// are found in the scene.
/// </remarks>
public void PreDraw(GameTime gameTime, Camera camera)
{
XiHelper.ArgumentNullCheck(gameTime, camera);
CacheActors();
CacheLights();
CacheSurfaces();
DrawShadows(gameTime, camera);
PreDrawSurfaces(gameTime, camera);
}
private void DrawSurfaces(GameTime gameTime, Camera camera, string drawMode)
{
game.SurfaceDrawer3D.DrawSurfaces(gameTime, camera, drawMode, cachedSurfaces);
}
private void PreDrawSurfaces(GameTime gameTime, Camera camera)
{
game.SurfaceDrawer3D.PreDrawSurfaces(gameTime, camera, cachedSurfaces);
}
/// <summary>
/// Draw the shadow map.
/// </summary>
/// <param name="gameTime">The current game time.</param>
/// <param name="camera">The camera from which the scene is viewed.</param>
public void DrawShadow(GameTime gameTime, Camera camera)
{
XiHelper.ArgumentNullCheck(gameTime, camera);
ConfigureShadowCamera(camera);
shadow.Draw(gameTime);
}
/// <summary> /// Handle predrawing the surface. /// </summary> protected abstract void DrawHook(GameTime gameTime, Camera camera, string drawMode);
/// <summary>
/// Draw the surface in a scene using the specified drawing mode.
/// </summary>
/// <param name="gameTime">The current game time.</param>
/// <param name="camera">The camera from which the surface is viewed.</param>
/// <param name="drawMode">The manner in which to draw the surface.</param>
public void Draw(GameTime gameTime, Camera camera, string drawMode)
{
DrawHook(gameTime, camera, drawMode);
}
/// <summary>
/// Populate the View, Projection, ViewProjection, and CameraPosition parameters.
/// </summary>
public void PopulateTransformWorld(Camera camera)
{
XiHelper.ArgumentNullCheck(camera);
View = camera.View;
Projection = camera.Projection;
ViewProjection = camera.ViewProjection;
CameraPosition = camera.Position;
}
/// <summary>
/// Populate the local and world transforms of a BaseEffect.
/// </summary>
public void PopulateTransform(Camera camera, ref Matrix world)
{
XiHelper.ArgumentNullCheck(camera);
PopulateTransformLocal(camera, ref world);
PopulateTransformWorld(camera);
}
private void PopulateEffect(GameTime gameTime, Camera camera, string drawMode)
{
Effect.TrySetCurrentTechnique(drawMode);
PopulateEffectHook(gameTime, camera, drawMode);
}
private void ConfigureShadowCamera(Camera camera)
{
ConfigureShadowCameraView(camera);
}
private Vector3 CalculateShadowCameraPosition(Camera camera)
{
if (!shadowCameraRelativeToViewCamera) return shadowCameraPosition;
Vector3 cameraPosition = camera.Position - direction * shadowCameraOffset;
return shadowCameraSnap != 0 ? cameraPosition.GetSnap(shadowCameraSnap) : cameraPosition;
}
private void ConfigureShadowCameraView(Camera camera)
{
Vector3 position = CalculateShadowCameraPosition(camera), right, up;
direction.GetComplimentaryOrientationVectors(out up, out right);
shadow.Camera.SetTransformByLookForward(position, up, direction);
}
/// <summary>
/// Populate the World, WorldInverse, and WorldViewProjection parameters.
/// </summary>
public void PopulateTransformLocal(Camera camera, ref Matrix world)
{
XiHelper.ArgumentNullCheck(camera);
World = world;
WorldInverse = world.Determinant() != 0 ? Matrix.Invert(world) : Matrix.Identity;
WorldViewProjection = world * camera.ViewProjection;
}
/// <summary>
/// Handle populating the effect's parameters.
/// </summary>
protected virtual void PopulateEffectHook(GameTime gameTime, Camera camera, string drawMode)
{
LightReceiverEffect lrEffect = XiHelper.Cast<LightReceiverEffect>(Effect);
PopulateEffectTransform(camera, lrEffect);
if (drawMode == "Normal")
{
PopulateEffectDiffuseMap(lrEffect);
PopulateEffectFogging(lrEffect);
PopulateEffectLighting(lrEffect);
}
}
/// <summary>
/// PreDraw the surface in a scene. See notes on PreDraw in
/// <see cref="Scene"/>.
/// </summary>
/// <param name="gameTime">The current game time.</param>
/// <param name="camera">The camera from which the surface is viewed.</param>
public void PreDraw(GameTime gameTime, Camera camera)
{
PreDrawHook(gameTime, camera);
}
/// <inheritdoc />
protected override void PreDrawHook(GameTime gameTime, Camera camera) { }
/// <summary> /// Handle predrawing the surface. /// </summary> protected abstract void PreDrawHook(GameTime gameTime, Camera camera);
private void DrawShadows(GameTime gameTime, Camera camera)
{
foreach (DirectionalLight directionalLight in CachedDirectionalLights)
if (directionalLight.Enabled && directionalLight.ShadowEnabled)
directionalLight.DrawShadow(gameTime, camera);
}
/// <summary>
/// Draw the items in the DrawingBounds.
/// </summary>
/// <param name="gameTime">The current game time.</param>
/// <param name="camera">The camera from which the scene is viewed.</param>
/// <param name="drawMode">The manned in which to draw the scene.</param>
public void Draw(GameTime gameTime, Camera camera, string drawMode)
{
DrawSurfaces(gameTime, camera, drawMode);
ClearSurfaces();
ClearLights();
ClearActors();
}
private void PopulateEffectTransform(Camera camera, BasicEffect basicEffect)
{
Matrix worldTransform;
Actor.GetBoneAbsoluteWorld(Mesh.ParentBone.Index, out worldTransform);
basicEffect.PopulateTransform(camera, ref worldTransform);
}
