// main visibility determination & render queue filling routine
// over-ridden from base/default scene manager. This is *the*
// main call.
void PCZSceneManager::_findVisibleObjects(Camera* cam,
VisibleObjectsBoundsInfo* visibleBounds,
bool onlyShadowCasters)
{
// clear the render queue
getRenderQueue()->clear();
// if we are re-rendering the scene again with the same camera, we can just use the cache.
// this helps post processing compositors.
unsigned long frameCount = Root::getSingleton().getNextFrameNumber();
if (mLastActiveCamera == cam && mFrameCount == frameCount)
{
RenderQueue* queue = getRenderQueue();
size_t count = mVisible.size();
for (size_t i = 0; i < count; ++i)
{
((PCZSceneNode*)mVisible[i])->_addToRenderQueue(
cam, queue, onlyShadowCasters, visibleBounds);
}
return;
}
// increment the visibility frame counter
mFrameCount = frameCount;
mLastActiveCamera = cam;
// clear the list of visible nodes
mVisible.clear();
// turn off sky
enableSky(false);
// remove all extra culling planes
((PCZCamera*)cam)->removeAllExtraCullingPlanes();
// update the camera
((PCZCamera*)cam)->update();
// get the home zone of the camera
PCZone* cameraHomeZone = ((PCZSceneNode*)(cam->getParentSceneNode()))->getHomeZone();
// walk the zones, starting from the camera home zone,
// adding all visible scene nodes to the mVisibles list
cameraHomeZone->setLastVisibleFrame(mFrameCount);
cameraHomeZone->findVisibleNodes((PCZCamera*)cam,
mVisible,
getRenderQueue(),
visibleBounds,
onlyShadowCasters,
mDisplayNodes,
mShowBoundingBoxes);
}
