/* /// <summary>
* /// Render 2D scene
* /// </summary>
* /// <param name="tree">BSP tree</param>
* /// <param name="camera">Camera</param>
* /// <param name="frustum">View frustum</param>
* /// <param name="depthPlanes">Depth planes</param>
* private void Render2D( BSPTree tree, IList<IBSPItem> items, Point3D cameraPos, Matrix3D displayMatrix, Frustum frustum, DepthPlanes depthPlanes )
* {
* int index = 0;
* bool clipFade = ClipFade;
*
* foreach ( BSPCube cube in items )
* {
* ContainmentType type = frustum.Contains( cube.Bounds );
*
* if ( type != ContainmentType.Disjoint
* && ( clipFade || type != ContainmentType.Intersects )
* && depthPlanes.Includes( cube.Position ) )
* {
* Sphere sphere;
*
* if ( index < canvas.Children.Count ) sphere = canvas.Children[ index ] as Sphere;
* else canvas.Children.Add( sphere = new Sphere() );
*
* sphere.Visibility = Visibility.Visible;
* sphere.RenderTransform = new MatrixTransform( cube.SphereMatrix( cameraPos, displayMatrix ) );
* sphere.Brush = ( cube.MaterialOffset >= 0.5 ) ? SphereBrush : SelectedSphereBrush;
* sphere.Opacity = Math.Abs( 0.5 - cube.MaterialOffset ) * 2;
*
* if ( type == ContainmentType.Intersects ) sphere.Opacity *= 0.2;
*
++index;
* }
* }
*
* while ( index < canvas.Children.Count ) canvas.Children[ index++ ].Visibility = Visibility.Hidden;
* }
*/
/// <summary>
/// Recursively render tree
/// </summary>
/// <param name="tree">Tree node</param>
private void RenderTree(BSPTree tree, IList <IBSPItem> items, Point3D cameraPos, Frustum frustum, DepthPlanes depthPlanes)
{
bool limitDepth = LimitDepth;
if (tree != null && frustum.Contains(tree.Bounds) != ContainmentType.Disjoint &&
(!limitDepth || depthPlanes.Includes(tree.Bounds)))
{
Halfspace halfspace = tree.Partition.Classify(cameraPos);
if (halfspace == Halfspace.Negative)
{
if (tree.Front != null)
{
RenderTree(tree.Front, items, cameraPos, frustum, depthPlanes);
}
}
else if (tree.Back != null)
{
RenderTree(tree.Back, items, cameraPos, frustum, depthPlanes);
}
foreach (IBSPItem item in tree.Items)
{
items.Add(item);
}
if (halfspace == Halfspace.Negative)
{
if (tree.Back != null)
{
RenderTree(tree.Back, items, cameraPos, frustum, depthPlanes);
}
}
else if (tree.Front != null)
{
RenderTree(tree.Front, items, cameraPos, frustum, depthPlanes);
}
}
}
/// <summary>
/// Render 3D scene
/// </summary>
/// <param name="tree">BSP tree</param>
/// <param name="camera">Camera</param>
/// <param name="frustum">View frustum</param>
/// <param name="depthPlanes">Depth planes</param>
private void Render3D(BSPTree tree, IList <IBSPItem> items, Point3D cameraPos, Matrix3D displayMatrix, Frustum frustum, DepthPlanes depthPlanes)
{
bool clipFade = ClipFade;
bool showCubes = ShowCubes;
bool limitDepth = LimitDepth;
MeshGeometry3D thumbnailMesh = new MeshGeometry3D();
MeshGeometry3D mesh = new MeshGeometry3D();
//MeshGeometry3D flatMesh = new MeshGeometry3D();
// List<BSPCube> renderItems = new List<BSPCube>();
foreach (BSPCube cube in items)
{
ContainmentType type = frustum.Contains(cube.Bounds);
if (type != ContainmentType.Disjoint &&
(clipFade || type != ContainmentType.Intersects) &&
(!limitDepth || depthPlanes.Includes(cube.Position)))
{
double alpha = (type == ContainmentType.Intersects) ? 0.2 : 1.0;
if (!string.IsNullOrEmpty(cube.Url) || EmptyImages)
{
cube.RenderThumbnail(thumbnailMesh, cameraPos, alpha, displayMatrix, thumbnails);
}
if (showCubes)
{
cube.Render(mesh, cameraPos, alpha);
}
//cube.RenderFlat( flatMesh, cameraPos, displayMatrix, new Rect( 0, 0, 0.5, 1 ) );
}
}
geometry.Geometry = mesh;
thumbnailGeometry.Geometry = thumbnailMesh;
//flatGeometry.Geometry = flatMesh;
}
/// <summary>
/// Rendering
/// </summary>
/// <param name="sender">Sender</param>
/// <param name="e">Event arguments</param>
void CompositionTarget_Rendering(object sender, EventArgs e)
{
Quaternion q = Quaternion.Identity;
if (Keyboard.IsKeyDown(Key.Left))
{
q *= new Quaternion(new Vector3D(0, 3, 0), 5);
}
if (Keyboard.IsKeyDown(Key.Right))
{
q *= new Quaternion(new Vector3D(0, 3, 0), -5);
}
if (Keyboard.IsKeyDown(Key.Up))
{
q *= new Quaternion(new Vector3D(3, 0, 0), 5);
}
;
if (Keyboard.IsKeyDown(Key.Down))
{
q *= new Quaternion(new Vector3D(3, 0, 0), -5);
}
/*
*
* Vector3D l = camera.Transform.Transform( camera.LookDirection );
* Matrix3D rotateLeft = new Matrix3D();
* rotateLeft.Rotate( new Quaternion( new Vector3D( 0, 3, 0 ), 90 ) );
*
* if ( Keyboard.IsKeyDown( Key.Up ) ) FPSCamera( l * 0.05 );
* if ( Keyboard.IsKeyDown( Key.Down ) ) FPSCamera( -l * 0.05 );
* if ( Keyboard.IsKeyDown( Key.Left ) ) FPSCamera( rotateLeft.Transform( l ) * 0.05 );
* if ( Keyboard.IsKeyDown( Key.Right ) ) FPSCamera( -rotateLeft.Transform( l ) * 0.05 );
*/
if (!q.IsIdentity)
{
AxisAngleRotation3D rotation = trackball.Rotation;
Quaternion newQ = new Quaternion(rotation.Axis, rotation.Angle) * q;
rotation.Axis = newQ.Axis;
rotation.Angle = newQ.Angle;
}
if (cameraChanged && tree != null)
{
cameraChanged = false;
MatrixCamera matrixCamera = FactCubeCamera.CreateMatrixCamera(camera, ActualWidth, ActualHeight, 0.01, 3);
Matrix3D viewProjectionMatrix = matrixCamera.ViewMatrix * matrixCamera.ProjectionMatrix;
Frustum frustum = new Frustum(viewProjectionMatrix, true);
DepthPlanes depthPlanes = new DepthPlanes(camera, tree.Bounds, 1d / (dimensionSize - 1));
Point3D cameraPos = camera.Transform.Transform(camera.Position);
List <IBSPItem> items = new List <IBSPItem>();
RenderTree(tree, items, cameraPos, frustum, depthPlanes);
Matrix3D displayMatrix = viewProjectionMatrix
* FactCubeCamera.GetHomogeneousToViewportTransform3D(ActualWidth, ActualHeight);
//canvas.Children.Clear();
Render3D(tree, items, cameraPos, displayMatrix, frustum, depthPlanes);
}
}
/* /// <summary>
/// Render 2D scene
/// </summary>
/// <param name="tree">BSP tree</param>
/// <param name="camera">Camera</param>
/// <param name="frustum">View frustum</param>
/// <param name="depthPlanes">Depth planes</param>
private void Render2D( BSPTree tree, IList<IBSPItem> items, Point3D cameraPos, Matrix3D displayMatrix, Frustum frustum, DepthPlanes depthPlanes )
{
int index = 0;
bool clipFade = ClipFade;
foreach ( BSPCube cube in items )
{
ContainmentType type = frustum.Contains( cube.Bounds );
if ( type != ContainmentType.Disjoint
&& ( clipFade || type != ContainmentType.Intersects )
&& depthPlanes.Includes( cube.Position ) )
{
Sphere sphere;
if ( index < canvas.Children.Count ) sphere = canvas.Children[ index ] as Sphere;
else canvas.Children.Add( sphere = new Sphere() );
sphere.Visibility = Visibility.Visible;
sphere.RenderTransform = new MatrixTransform( cube.SphereMatrix( cameraPos, displayMatrix ) );
sphere.Brush = ( cube.MaterialOffset >= 0.5 ) ? SphereBrush : SelectedSphereBrush;
sphere.Opacity = Math.Abs( 0.5 - cube.MaterialOffset ) * 2;
if ( type == ContainmentType.Intersects ) sphere.Opacity *= 0.2;
++index;
}
}
while ( index < canvas.Children.Count ) canvas.Children[ index++ ].Visibility = Visibility.Hidden;
}
*/
/// <summary>
/// Recursively render tree
/// </summary>
/// <param name="tree">Tree node</param>
private void RenderTree( BSPTree tree, IList<IBSPItem> items, Point3D cameraPos, Frustum frustum, DepthPlanes depthPlanes )
{
bool limitDepth = LimitDepth;
if ( tree != null && frustum.Contains( tree.Bounds ) != ContainmentType.Disjoint
&& ( !limitDepth || depthPlanes.Includes( tree.Bounds ) ) )
{
Halfspace halfspace = tree.Partition.Classify( cameraPos );
if ( halfspace == Halfspace.Negative ) { if ( tree.Front != null ) RenderTree( tree.Front, items, cameraPos, frustum, depthPlanes ); }
else if ( tree.Back != null ) RenderTree( tree.Back, items, cameraPos, frustum, depthPlanes );
foreach ( IBSPItem item in tree.Items ) items.Add( item );
if ( halfspace == Halfspace.Negative ) { if ( tree.Back != null ) RenderTree( tree.Back, items, cameraPos, frustum, depthPlanes ); }
else if ( tree.Front != null ) RenderTree( tree.Front, items, cameraPos, frustum, depthPlanes );
}
}
/// <summary>
/// Render 3D scene
/// </summary>
/// <param name="tree">BSP tree</param>
/// <param name="camera">Camera</param>
/// <param name="frustum">View frustum</param>
/// <param name="depthPlanes">Depth planes</param>
private void Render3D( BSPTree tree, IList<IBSPItem> items, Point3D cameraPos, Matrix3D displayMatrix, Frustum frustum, DepthPlanes depthPlanes )
{
bool clipFade = ClipFade;
bool showCubes = ShowCubes;
bool limitDepth = LimitDepth;
MeshGeometry3D thumbnailMesh = new MeshGeometry3D();
MeshGeometry3D mesh = new MeshGeometry3D();
//MeshGeometry3D flatMesh = new MeshGeometry3D();
// List<BSPCube> renderItems = new List<BSPCube>();
foreach ( BSPCube cube in items )
{
ContainmentType type = frustum.Contains( cube.Bounds );
if ( type != ContainmentType.Disjoint
&& ( clipFade || type != ContainmentType.Intersects )
&& ( !limitDepth || depthPlanes.Includes( cube.Position ) ) )
{
double alpha = ( type == ContainmentType.Intersects ) ? 0.2 : 1.0;
if ( !string.IsNullOrEmpty( cube.Url ) || EmptyImages )
{
cube.RenderThumbnail( thumbnailMesh, cameraPos, alpha, displayMatrix, thumbnails );
}
if ( showCubes ) cube.Render( mesh, cameraPos, alpha );
//cube.RenderFlat( flatMesh, cameraPos, displayMatrix, new Rect( 0, 0, 0.5, 1 ) );
}
}
geometry.Geometry = mesh;
thumbnailGeometry.Geometry = thumbnailMesh;
//flatGeometry.Geometry = flatMesh;
}
/// <summary>
/// Rendering
/// </summary>
/// <param name="sender">Sender</param>
/// <param name="e">Event arguments</param>
void CompositionTarget_Rendering( object sender, EventArgs e )
{
Quaternion q = Quaternion.Identity;
if ( Keyboard.IsKeyDown( Key.Left ) ) q *= new Quaternion( new Vector3D( 0, 3, 0 ), 5 );
if ( Keyboard.IsKeyDown( Key.Right ) ) q *= new Quaternion( new Vector3D( 0, 3, 0 ), -5 );
if ( Keyboard.IsKeyDown( Key.Up ) ) q *= new Quaternion( new Vector3D( 3, 0, 0 ), 5 ); ;
if ( Keyboard.IsKeyDown( Key.Down ) ) q *= new Quaternion( new Vector3D( 3, 0, 0 ), -5 );
/*
Vector3D l = camera.Transform.Transform( camera.LookDirection );
Matrix3D rotateLeft = new Matrix3D();
rotateLeft.Rotate( new Quaternion( new Vector3D( 0, 3, 0 ), 90 ) );
if ( Keyboard.IsKeyDown( Key.Up ) ) FPSCamera( l * 0.05 );
if ( Keyboard.IsKeyDown( Key.Down ) ) FPSCamera( -l * 0.05 );
if ( Keyboard.IsKeyDown( Key.Left ) ) FPSCamera( rotateLeft.Transform( l ) * 0.05 );
if ( Keyboard.IsKeyDown( Key.Right ) ) FPSCamera( -rotateLeft.Transform( l ) * 0.05 );
*/
if ( !q.IsIdentity )
{
AxisAngleRotation3D rotation = trackball.Rotation;
Quaternion newQ = new Quaternion( rotation.Axis, rotation.Angle ) * q;
rotation.Axis = newQ.Axis;
rotation.Angle = newQ.Angle;
}
if ( cameraChanged && tree != null )
{
cameraChanged = false;
MatrixCamera matrixCamera = FactCubeCamera.CreateMatrixCamera( camera, ActualWidth, ActualHeight, 0.01, 3 );
Matrix3D viewProjectionMatrix = matrixCamera.ViewMatrix * matrixCamera.ProjectionMatrix;
Frustum frustum = new Frustum( viewProjectionMatrix, true );
DepthPlanes depthPlanes = new DepthPlanes( camera, tree.Bounds, 1d / ( dimensionSize - 1 ) );
Point3D cameraPos = camera.Transform.Transform( camera.Position );
List<IBSPItem> items = new List<IBSPItem>();
RenderTree( tree, items, cameraPos, frustum, depthPlanes );
Matrix3D displayMatrix = viewProjectionMatrix
* FactCubeCamera.GetHomogeneousToViewportTransform3D( ActualWidth, ActualHeight );
//canvas.Children.Clear();
Render3D( tree, items, cameraPos, displayMatrix, frustum, depthPlanes );
}
}
