/// <summary>
/// Static constructor.
/// </summary>
static SceneObject()
{
// Static initialization
SceneGraph.Touch();
SceneObjectCamera.Touch();
SceneObjectGeometry.Touch();
SceneObjectLight.Touch();
SceneObjectLightZone.Touch();
}
private void PostObject(GraphicsContext ctx, SceneGraphContext ctxScene, SceneObjectLightZone sceneObject)
{
if (sceneObject == null)
{
throw new ArgumentNullException("sceneObject");
}
_LightState.Pop();
ctxScene.GraphicsStateStack.Current.DefineState(CurrentZone);
}
private void ManageObject(GraphicsContext ctx, SceneGraphContext ctxScene, SceneObjectLightZone sceneObject)
{
if (sceneObject == null)
{
throw new ArgumentNullException("sceneObject");
}
if (_LightState.Count == 1)
{
ShadowLights.Clear();
}
_LightState.Push(new State.LightsState());
ctxScene.GraphicsStateStack.Current.DefineState(CurrentZone);
}
/// <summary>
/// Traverse delegate for collecting geometries to be drawn.
/// </summary>
/// <param name="ctx">
/// The <see cref="GraphicsContext"/> used for drawing.
/// </param>
/// <param name="ctxScene"></param>
/// <param name="sceneObject"></param>
/// <param name="data"></param>
/// <returns></returns>
private static bool GraphDrawDelegate(GraphicsContext ctx, SceneGraphContext ctxScene, SceneObject sceneObject, object data)
{
ObjectBatchContext objectBatchContext = (ObjectBatchContext)data;
if (sceneObject.ObjectType == SceneObjectGeometry.ClassObjectType)
{
SceneObjectGeometry sceneGeometry = (SceneObjectGeometry)sceneObject;
GraphicsStateSet sceneGeometryState = ctxScene.GraphicsStateStack.Current;
TransformStateBase sceneGeometryModel = (TransformStateBase)sceneGeometryState[TransformStateBase.StateSetIndex];
IEnumerable <SceneObjectBatch> geometries;
if ((ctxScene.Scene.SceneFlags & SceneGraphFlags.CullingViewFrustum) != 0)
{
// View-frustum culling
geometries = sceneGeometry.GetGeometries(sceneGeometryState, objectBatchContext.ViewFrustumPlanes, sceneGeometryModel.ModelView);
}
else
{
// All geometries
geometries = sceneGeometry.GetGeometries(sceneGeometryState);
}
objectBatchContext.Objects.AddRange(geometries);
// Bounding volumes
if ((ctxScene.Scene.SceneFlags & SceneGraphFlags.BoundingVolumes) != 0)
{
}
}
else if (sceneObject.ObjectType == SceneObjectLightZone.ClassObjectType)
{
SceneObjectLightZone sceneObjectLightZone = (SceneObjectLightZone)sceneObject;
// TODO: Push instead of Clear to support stacked zones
objectBatchContext.Lights.Clear();
objectBatchContext.LightZone = sceneObjectLightZone;
}
else if (sceneObject.ObjectType == SceneObjectLight.ClassObjectType)
{
objectBatchContext.Lights.Add((SceneObjectLight)sceneObject);
}
return(true);
}
private static bool GraphDrawPostDelegate(GraphicsContext ctx, SceneGraphContext ctxScene, SceneObject sceneObject, object data)
{
ObjectBatchContext objectBatchContext = (ObjectBatchContext)data;
if (sceneObject.ObjectType == SceneObjectLightZone.ClassObjectType)
{
SceneObjectLightZone sceneObjectLightZone = (SceneObjectLightZone)sceneObject;
sceneObjectLightZone.ResetLights(ctxScene, objectBatchContext.Lights);
// TODO: Pop instead of Clear to support stacked zones
objectBatchContext.Lights.Clear();
}
// Restore previous state
ctxScene.GraphicsStateStack.Pop();
return(true);
}
