[no bug] Crash on calling IMeshSceneNode::setMesh

[3DModelerMan]

I'm trying to run this code:

Code: Select all

 
irr::scene::IMesh* roomMesh = smgr->getMesh("Debug/room_mesh.b3d");
        if ( !roomMesh )
                return 1;
 
        CGameEntity* room = gameLogic->createEntity();
        Optional<IComponent*> meshComp = gameLogic->getComponentManager()->createComponent(CT_MESH_NODE);
        if ( !meshComp.isValid() )
                return 1;
 
        room->addComponent(meshComp);
        ((CMeshSceneNodeComponent*)meshComp.var)->setMesh(roomMesh);
 

Basically after going through my entity system it all boils down to a call to IMeshSceneNode::setMesh where it crashes. The setMesh function on my component class is basically just a wrapper for setMesh on the mesh scene node. I tried going around my component system and just doing:

Code: Select all

 
IMeshSceneNode* mesh = smgr->createMeshSceneNode(0);
mesh->setMesh(roomNode);
 

But it's still crashing. I think it's a bug in Irrlicht.

[hybrid]

What is createMeshSceneNode? There's no such method in Irrlicht's API. If you use addMeshSceneNode instead, you have to set the boolean flag which ensures that even though the mesh is null, you get a valid scene node. Otherwise the return value is 0, which you obviously don't check for.
As said elsewhere, bugs in these simple and very basic methods are very unlikely. Better check for faults on your side first.

[3DModelerMan]

Oh. I didn't see the flag on the last parameter. Thanks.