public PCZSceneNode( SceneManager creator, string name )
: base( creator, name )
{
homeZone = null;
anchored = false;
allowedToVisit = true;
lastVisibleFrame = 0;
lastVisibleFromCamera = null;
enabled = true;
}
/*
// Recursively walk the zones, adding all visible SceneNodes to the list of visible nodes.
*/
public override void FindVisibleNodes( PCZCamera camera,
ref List<PCZSceneNode> visibleNodeList,
RenderQueue queue,
VisibleObjectsBoundsInfo visibleBounds,
bool onlyShadowCasters,
bool displayNodes,
bool showBoundingBoxes )
{
//return immediately if nothing is in the zone.
if ( mHomeNodeList.Count == 0 &&
mVisitorNodeList.Count == 0 &&
mPortals.Count == 0 )
return;
// Else, the zone is automatically assumed to be visible since either
// it is the camera the zone is in, or it was reached because
// a connecting portal was deemed visible to the camera.
// enable sky if called to do so for this zone
if ( HasSky )
{
// enable sky
mPCZSM.EnableSky( true );
}
// find visible nodes at home in the zone
bool vis;
foreach ( PCZSceneNode pczsn in mHomeNodeList )
{
//PCZSceneNode pczsn = *it;
// if the scene node is already visible, then we can skip it
if ( pczsn.LastVisibleFrame != mLastVisibleFrame ||
pczsn.LastVisibleFromCamera != camera )
{
FrustumPlane fPlane;
// for a scene node, check visibility using AABB
vis = camera.IsObjectVisible( pczsn.WorldAABB, out fPlane );
if ( vis )
{
// add it to the list of visible nodes
visibleNodeList.Add( pczsn );
// add the node to the render queue
pczsn.AddToRenderQueue( camera, queue, onlyShadowCasters, visibleBounds );
// if we are displaying nodes, add the node renderable to the queue
if ( displayNodes )
{
queue.AddRenderable( pczsn.GetDebugRenderable() );
}
// if the scene manager or the node wants the bounding box shown, add it to the queue
if ( pczsn.ShowBoundingBox || showBoundingBoxes )
{
pczsn.AddBoundingBoxToQueue( queue );
}
// flag the node as being visible this frame
pczsn.LastVisibleFrame = mLastVisibleFrame;
pczsn.LastVisibleFromCamera = camera;
}
}
}
// find visible visitor nodes
foreach ( PCZSceneNode pczsn in mVisitorNodeList )
{
// if the scene node is already visible, then we can skip it
if ( pczsn.LastVisibleFrame != mLastVisibleFrame ||
pczsn.LastVisibleFromCamera != camera )
{
FrustumPlane fPlane;
// for a scene node, check visibility using AABB
vis = camera.IsObjectVisible( pczsn.WorldAABB, out fPlane );
if ( vis )
{
// add it to the list of visible nodes
visibleNodeList.Add( pczsn );
// add the node to the render queue
pczsn.AddToRenderQueue( camera, queue, onlyShadowCasters, visibleBounds );
// if we are displaying nodes, add the node renderable to the queue
if ( displayNodes )
{
queue.AddRenderable( pczsn.GetDebugRenderable() );
}
// if the scene manager or the node wants the bounding box shown, add it to the queue
if ( pczsn.ShowBoundingBox || showBoundingBoxes )
{
pczsn.AddBoundingBoxToQueue( queue );
}
// flag the node as being visible this frame
pczsn.LastVisibleFrame = mLastVisibleFrame;
pczsn.LastVisibleFromCamera = camera;
}
}
}
// find visible portals in the zone and recurse into them
foreach ( Portal portal in mPortals )
{
FrustumPlane fPlane;
// for portal, check visibility using world bounding sphere & direction
vis = camera.IsObjectVisible( portal, out fPlane );
if ( vis )
{
// portal is visible. Add the portal as extra culling planes to camera
int planes_added = camera.AddPortalCullingPlanes( portal );
// tell target zone it's visible this frame
portal.getTargetZone().LastVisibleFrame = mLastVisibleFrame;
portal.getTargetZone().LastVisibleFromCamera = camera;
// recurse into the connected zone
portal.getTargetZone().FindVisibleNodes( camera,
ref visibleNodeList,
queue,
visibleBounds,
onlyShadowCasters,
displayNodes,
showBoundingBoxes );
if ( planes_added > 0 )
{
// Then remove the extra culling planes added before going to the next portal in this zone.
camera.RemovePortalCullingPlanes( portal );
}
}
}
}
/** Find and add visible objects to the render queue. @remarks Starts with objects in the zone and proceeds through visible portals This is a recursive call (the main call should be to _findVisibleObjects) */ public abstract void FindVisibleNodes( PCZCamera camera, ref List<PCZSceneNode> visibleNodeList, RenderQueue queue, VisibleObjectsBoundsInfo visibleBounds, bool onlyShadowCasters, bool displayNodes, bool showBoundingBoxes );
/** Find and add visible objects to the render queue.
* @remarks
* Starts with objects in the zone and proceeds through visible portals
* This is a recursive call (the main call should be to _findVisibleObjects)
*/
public abstract void FindVisibleNodes(PCZCamera camera, ref List <PCZSceneNode> visibleNodeList, RenderQueue queue,
VisibleObjectsBoundsInfo visibleBounds, bool onlyShadowCasters,
bool displayNodes, bool showBoundingBoxes);
private void WalkOctree( PCZCamera camera,
ref List<PCZSceneNode> visibleNodeList,
RenderQueue queue,
Octree octant,
VisibleObjectsBoundsInfo visibleBounds,
bool foundvisible,
bool onlyShadowCasters,
bool displayNodes,
bool showBoundingBoxes )
{
//return immediately if nothing is in the node.
if ( octant.NunodeList == 0 )
return;
Visibility v = Visibility.None;
if ( foundvisible )
{
v = Visibility.Full;
}
else if ( octant == rootOctree )
{
v = Visibility.Partial;
}
else
{
AxisAlignedBox box = octant.Box;
v = camera.GetVisibility( box );
}
// if the octant is visible, or if it's the root node...
if ( v != Visibility.None )
{
//Add stuff to be rendered;
bool vis = true;
foreach ( PCZSceneNode sn in octant.NodeList.Values )
{
// if the scene node is already visible, then we can skip it
if ( sn.LastVisibleFrame != mLastVisibleFrame ||
sn.LastVisibleFromCamera != camera )
{
// if this octree is partially visible, manually cull all
// scene nodes attached directly to this level.
if ( v == Visibility.Partial )
{
vis = camera.IsObjectVisible( sn.WorldAABB );
}
if ( vis )
{
// add the node to the render queue
sn.AddToRenderQueue( camera, queue, onlyShadowCasters, visibleBounds );
// add it to the list of visible nodes
visibleNodeList.Add( sn );
// if we are displaying nodes, add the node renderable to the queue
if ( displayNodes )
{
queue.AddRenderable( sn.GetDebugRenderable() );
}
// if the scene manager or the node wants the bounding box shown, add it to the queue
if ( sn.ShowBoundingBox || showBoundingBoxes )
{
sn.AddBoundingBoxToQueue( queue );
}
// flag the node as being visible this frame
sn.LastVisibleFrame = mLastVisibleFrame;
sn.LastVisibleFromCamera = camera;
}
}
}
Octree child;
bool childfoundvisible = ( v == Visibility.Full );
if ( ( child = octant.Children[ 0, 0, 0 ] ) != null )
WalkOctree( camera, ref visibleNodeList, queue, child, visibleBounds, childfoundvisible,
onlyShadowCasters, displayNodes, showBoundingBoxes );
if ( ( child = octant.Children[ 1, 0, 0 ] ) != null )
WalkOctree( camera, ref visibleNodeList, queue, child, visibleBounds, childfoundvisible,
onlyShadowCasters, displayNodes, showBoundingBoxes );
if ( ( child = octant.Children[ 0, 1, 0 ] ) != null )
WalkOctree( camera, ref visibleNodeList, queue, child, visibleBounds, childfoundvisible,
onlyShadowCasters, displayNodes, showBoundingBoxes );
if ( ( child = octant.Children[ 1, 1, 0 ] ) != null )
WalkOctree( camera, ref visibleNodeList, queue, child, visibleBounds, childfoundvisible,
onlyShadowCasters, displayNodes, showBoundingBoxes );
if ( ( child = octant.Children[ 0, 0, 1 ] ) != null )
WalkOctree( camera, ref visibleNodeList, queue, child, visibleBounds, childfoundvisible,
onlyShadowCasters, displayNodes, showBoundingBoxes );
if ( ( child = octant.Children[ 1, 0, 1 ] ) != null )
WalkOctree( camera, ref visibleNodeList, queue, child, visibleBounds, childfoundvisible,
onlyShadowCasters, displayNodes, showBoundingBoxes );
if ( ( child = octant.Children[ 0, 1, 1 ] ) != null )
WalkOctree( camera, ref visibleNodeList, queue, child, visibleBounds, childfoundvisible,
onlyShadowCasters, displayNodes, showBoundingBoxes );
if ( ( child = octant.Children[ 1, 1, 1 ] ) != null )
WalkOctree( camera, ref visibleNodeList, queue, child, visibleBounds, childfoundvisible,
onlyShadowCasters, displayNodes, showBoundingBoxes );
}
}
public override void FindVisibleNodes( PCZCamera camera, ref List<PCZSceneNode> visibleNodeList, RenderQueue queue, VisibleObjectsBoundsInfo visibleBounds, bool onlyShadowCasters, bool displayNodes, bool showBoundingBoxes )
{
//return immediately if nothing is in the zone.
if ( mHomeNodeList.Count == 0 &&
mVisitorNodeList.Count == 0 &&
mPortals.Count == 0 )
return;
// Else, the zone is automatically assumed to be visible since either
// it is the camera the zone is in, or it was reached because
// a connecting portal was deemed visible to the camera.
// enable sky if called to do so for this zone
if ( mHasSky )
{
// enable sky
mPCZSM.EnableSky( true );
}
// Recursively find visible nodes in the zone
WalkOctree( camera,
ref visibleNodeList,
queue,
rootOctree,
visibleBounds,
false,
onlyShadowCasters,
displayNodes,
showBoundingBoxes );
// find visible portals in the zone and recurse into them
bool vis;
foreach ( Portal portal in mPortals )
{
// for portal, check visibility using world bounding sphere & direction
FrustumPlane pl = FrustumPlane.None;
vis = camera.IsObjectVisible( portal, out pl );
if ( vis )
{
// portal is visible. Add the portal as extra culling planes to camera
int planes_added = camera.AddPortalCullingPlanes( portal );
// tell target zone it's visible this frame
portal.getTargetZone().LastVisibleFrame = mLastVisibleFrame;
portal.getTargetZone().LastVisibleFromCamera = camera;
// recurse into the connected zone
portal.getTargetZone().FindVisibleNodes( camera,
ref visibleNodeList,
queue,
visibleBounds,
onlyShadowCasters,
displayNodes,
showBoundingBoxes );
if ( planes_added > 0 )
{
// Then remove the extra culling planes added before going to the next portal in this zone.
camera.RemovePortalCullingPlanes( portal );
}
}
}
}
// Create a camera for the scene
public override Camera CreateCamera( string name )
{
// Check name not used
if ( cameraList.ContainsKey( name ) )
{
throw new AxiomException( "A camera with the name " + name + " already exists. PCZSceneManager.CreateCamera" );
}
Camera c = new PCZCamera( name, this );
cameraList.Add( name, c );
// create visible bounds aab map entry
//TODO: would be very nice to implements shadows processing like ogre does now...
//mCamVisibleObjectsMap[c] = VisibleObjectsBoundsInfo();
// tell all the zones about the new camera
foreach ( PCZone zone in this.zones )
{
zone.NotifyCameraCreated( c );
}
return c;
}
/*
* // Recursively walk the zones, adding all visible SceneNodes to the list of visible nodes.
*/
public override void FindVisibleNodes(PCZCamera camera, ref List <PCZSceneNode> visibleNodeList, RenderQueue queue,
VisibleObjectsBoundsInfo visibleBounds, bool onlyShadowCasters,
bool displayNodes, bool showBoundingBoxes)
{
//return immediately if nothing is in the zone.
if (mHomeNodeList.Count == 0 && mVisitorNodeList.Count == 0 && mPortals.Count == 0)
{
return;
}
// Else, the zone is automatically assumed to be visible since either
// it is the camera the zone is in, or it was reached because
// a connecting portal was deemed visible to the camera.
// enable sky if called to do so for this zone
if (HasSky)
{
// enable sky
mPCZSM.EnableSky(true);
}
// find visible nodes at home in the zone
bool vis;
foreach (PCZSceneNode pczsn in mHomeNodeList)
{
//PCZSceneNode pczsn = *it;
// if the scene node is already visible, then we can skip it
if (pczsn.LastVisibleFrame != mLastVisibleFrame || pczsn.LastVisibleFromCamera != camera)
{
FrustumPlane fPlane;
// for a scene node, check visibility using AABB
vis = camera.IsObjectVisible(pczsn.WorldAABB, out fPlane);
if (vis)
{
// add it to the list of visible nodes
visibleNodeList.Add(pczsn);
// add the node to the render queue
pczsn.AddToRenderQueue(camera, queue, onlyShadowCasters, visibleBounds);
// if we are displaying nodes, add the node renderable to the queue
if (displayNodes)
{
queue.AddRenderable(pczsn.GetDebugRenderable());
}
// if the scene manager or the node wants the bounding box shown, add it to the queue
if (pczsn.ShowBoundingBox || showBoundingBoxes)
{
pczsn.AddBoundingBoxToQueue(queue);
}
// flag the node as being visible this frame
pczsn.LastVisibleFrame = mLastVisibleFrame;
pczsn.LastVisibleFromCamera = camera;
}
}
}
// find visible visitor nodes
foreach (PCZSceneNode pczsn in mVisitorNodeList)
{
// if the scene node is already visible, then we can skip it
if (pczsn.LastVisibleFrame != mLastVisibleFrame || pczsn.LastVisibleFromCamera != camera)
{
FrustumPlane fPlane;
// for a scene node, check visibility using AABB
vis = camera.IsObjectVisible(pczsn.WorldAABB, out fPlane);
if (vis)
{
// add it to the list of visible nodes
visibleNodeList.Add(pczsn);
// add the node to the render queue
pczsn.AddToRenderQueue(camera, queue, onlyShadowCasters, visibleBounds);
// if we are displaying nodes, add the node renderable to the queue
if (displayNodes)
{
queue.AddRenderable(pczsn.GetDebugRenderable());
}
// if the scene manager or the node wants the bounding box shown, add it to the queue
if (pczsn.ShowBoundingBox || showBoundingBoxes)
{
pczsn.AddBoundingBoxToQueue(queue);
}
// flag the node as being visible this frame
pczsn.LastVisibleFrame = mLastVisibleFrame;
pczsn.LastVisibleFromCamera = camera;
}
}
}
// find visible portals in the zone and recurse into them
foreach (Portal portal in mPortals)
{
FrustumPlane fPlane;
// for portal, check visibility using world bounding sphere & direction
vis = camera.IsObjectVisible(portal, out fPlane);
if (vis)
{
// portal is visible. Add the portal as extra culling planes to camera
int planes_added = camera.AddPortalCullingPlanes(portal);
// tell target zone it's visible this frame
portal.getTargetZone().LastVisibleFrame = mLastVisibleFrame;
portal.getTargetZone().LastVisibleFromCamera = camera;
// recurse into the connected zone
portal.getTargetZone().FindVisibleNodes(camera, ref visibleNodeList, queue, visibleBounds, onlyShadowCasters,
displayNodes, showBoundingBoxes);
if (planes_added > 0)
{
// Then remove the extra culling planes added before going to the next portal in this zone.
camera.RemovePortalCullingPlanes(portal);
}
}
}
}
public PCZone( PCZSceneManager creator, string name )
{
mLastVisibleFrame = 0;
mLastVisibleFromCamera = null;
mName = name;
mZoneTypeName = "ZoneType_Undefined";
mEnclosureNode = null;
mPCZSM = creator;
HasSky = false;
}
