/**
* @brief
* Draws recursive
*/
void SRPVolume::DrawRec(Renderer &cRenderer, const SQCull &cCullQuery)
{
// Set the new scissor rectangle
const VisContainer &cVisContainer = cCullQuery.GetVisContainer();
cRenderer.SetScissorRect(&cVisContainer.GetProjection().cRectangle);
// Render all visible scene nodes of this scene container
Iterator<VisNode*> cIterator = (GetFlags() & DrawOrderFrontToBack) ? cVisContainer.GetVisNodes().GetIterator() : cVisContainer.GetVisNodes().GetEndIterator();
while ((GetFlags() & DrawOrderFrontToBack) ? cIterator.HasNext() : cIterator.HasPrevious()) {
// Get visibility node and scene node
const VisNode *pVisNode = (GetFlags() & DrawOrderFrontToBack) ? cIterator.Next() : cIterator.Previous();
SceneNode *pSceneNode = pVisNode->GetSceneNode();
if (pSceneNode) {
// Is this scene node a portal?
if (pVisNode->IsPortal()) {
// Get the target cell visibility container
const VisContainer *pVisCell = static_cast<const VisPortal*>(pVisNode)->GetTargetVisContainer();
if (pVisCell && pVisCell->GetCullQuery()) {
// Draw the target cell
DrawRec(cRenderer, *pVisCell->GetCullQuery());
// Set the previous scissor rectangle
cRenderer.SetScissorRect(&cVisContainer.GetProjection().cRectangle);
}
// Is this scene node a container? We do not need to check for cells because we will
// NEVER receive cells from SQCull directly, they are ONLY visible through portals! (see above)
} else if (pVisNode->IsContainer()) {
// Draw this container without special processing
if (static_cast<const VisContainer*>(pVisNode)->GetCullQuery()) {
DrawRec(cRenderer, *static_cast<const VisContainer*>(pVisNode)->GetCullQuery());
// Set the previous scissor rectangle
cRenderer.SetScissorRect(&cVisContainer.GetProjection().cRectangle);
}
// This must just be a quite boring scene node :)
} else {
// Do only take "PLVolume::SNVolume"-instances into account in here
const static Class *pSNVolumeClass = ClassManager::GetInstance()->GetClass("PLVolume::SNVolume");
if (pSceneNode->GetClass() == pSNVolumeClass)
DrawVolumeSceneNode(cRenderer, cCullQuery, *pVisNode);
}
}
}
}
