scaled node collision problem

jidijaat · Post by **jidijaat** » Tue Mar 31, 2009 7:38 pm

i am getting selected scenenode from this function..

selectedSceneNode = smgr->getSceneCollisionManager()->getSceneNodeFromCameraBB(cam);

//for testing i am setting light off
if ( selectedSceneNode )
{
selectedSceneNode->setMaterialFlag(video::EMF_LIGHTING, false);
}

but when i scale my nodes like
node->setScale(vector3df(10,10,10));
this function does not detect this node.

what to do.....

hybrid · Post by **hybrid** » Tue Mar 31, 2009 8:47 pm

I guess you should use selectedSceneNode

Nox · Post by **Nox** » Tue Mar 31, 2009 9:14 pm

jidijaat how do you create your node? Is it a AnimatedMeshSceneNode or a MeshSceneNode? Maybe you have to update the boundingbox after scaling your node.

hybrid · Post by **hybrid** » Tue Mar 31, 2009 11:19 pm

No, bbox is automatically scaled. Only vertex changes would require a manual update.

jidijaat · Post by **jidijaat** » Wed Apr 01, 2009 3:36 am

i am using meshscenenode. bounding box is showing properly in debugdraw.
but collision is not happning. it happens sometime when i go inside the mesh, but not everytimes. when i stopped scaling the mesh i do properly

Nox · Post by **Nox** » Wed Apr 01, 2009 9:40 am

jidijaat can you create a very small test.cpp which can be directly compiled? I want to take a closer look at this phenomen.

darkunderlord · Post by **darkunderlord** » Wed Apr 22, 2009 8:00 pm

anyone figure this out? I'm seeing the same thing with my scaled nodes. They sort of work but there's also problems with the floor planes I have below causing bounding box problems or something.

Others have said something similar to what I've seen and different SVN's aren't helping me. I'm trying the triangleselector way now, but these objects are stationary. It's a kind of chess game where you click on the piece and then the square you want to move to.

ugh. Irrlicht rocks though!

JP · Post by JP » Thu Apr 23, 2009 6:59 am

hybrid wrote:No, bbox is automatically scaled. Only vertex changes would require a manual update.

Is the bbox scaled as soon as node->setScale is called? Or is it scaled when the node is next updated? I've certainly had issues where I'd have to call node->OnAnimate(0) or node->updatedAbsolutePosition() in order to then get the correct bbox back from a node directly after scaling.