Problem with the Ocean example

I downloaded the Ocean example from Ofusion website.
Then, I loaded it in Ogre. But I find that the ocean disapears when I
rotate the camera. So I modified my code:

Ogre::AxisAlignedBox AABInf;
AABInf.setInfinite();
mSceneMgr->getEntity("WaterPlane")->getMesh()->_setBounds(AABInf);

But it takes no effect, and the problem remains.
What should I do to solve this problem.

You are updating the aabb of the mesh (that will be used when you create a new entity based on that mesh), you need th update the aabb of the entity (it has its own bounding box)

You are updating the aabb of the mesh (that will be used when you create a new entity based on that mesh), you need th update the aabb of the entity (it has its own bounding box)

I revise my code to the following:

AxisAlignedBox AAB = mSceneMgr->getEntity("WaterPlane")->getChildObjectsBoundingBox();
AAB.setInfinite();

But it still has no effect?

Because you are working on a copy of the aabb object (and because that method is not for the entity aabb)

As in the latest Ogre versions, the entity (movable object) aabb methods are const you cant change it by directly using the aabb

Use this:

Create a 'manual object' (from the scene manager)
set the aabb of this object to INFINITE
attach this object to the parent scene node of the water plane

I create a 'manual object' (from the scene manager).
But it seems that I cant find a method of Ogre::MovableObject that I can used to set the aabb of this 'manual object' to INFINITE ?

Use 'ManualObject::setBoundingBox' method

The problem is solved. Thanks!

There is still a question:Does the INFINITE 'manual object' affect the AABB of the child scene node's AABB? What's the AxisAlignedBox relationship between parent scenenode and child scenenode. And what's the AxisAlignedBox relationship between Entiy and the scenenode which the entity attaches to?
I lookup the OGRE documentation, but not find the answer!

Nobody knows the answer of my question?

Scene nodes do not have a defined AABB, it is recalculated every time a change is made in its attached objects (see the _update method of the scene node), its AABB is the result of the merge of all of the bounding boxes of the attached objects, and child nodes (and their attached objects AABB)

A bounding box of a entitiy (or manual object) do not affect other's AABB, the parent scene node just merges this with the other attahced objects when the needed to mantain a 'Scene Node AABB'

I get it. Thanks a lot.