crash while using two treeloader3D with the same .mesh

Hello all,

we use PagedGeometry 1.1.0 for a game that contains a few aggregations of the same object.
For every aggregation (forest, group of trees and so on) a new treeloader3D is created.
Unfortunately, the game crashes every time a treeloader3D-instance is deleted and an
object attached to another treeloader3D-instance comes in the range of view. Because it is the same .mesh,
i suppose the PagedGeometry-Engine deletes ressources (impostors) that are needed
by other treeloader3D-instances.

For treeloader2D, everything works fine, but i cannot imagine that it is not possible to have
more than one treeloader3D for the same .mesh.

Has anyone the same problem or can help us?
Thank you

Hm, it seems that you all use the PagedGeometry-Plugin only for static worlds.
I'm a little bit suprised - but can at least one reproduce the problem?
It's quite easy: two loaders with the same mesh, and then delete one...

Thank you

It's possible that could happen although I've never tried it. Can you clone the entity ( mEntity-clone(); )and pass it to your second TreeLoader?


- Fish

Yes that is possible but it crashes also
I even have cloned every single mesh that is passed to the addTree-Function, but the
effect is always the same:
After destructing the first treeloader, i can walk around a little bit. The nearest trees
of the second treeloader are shown, but after a second or two there is the crash.
If i do not look at the trees of the second treeloader, everything works ...

Do you have a stack trace?

- Fish

Yes, i have a little bit:

> Randwelt.exe!Forests::ImpostorBatch::setAngle(float pitchDeg=-1.9049083, float yawDeg=-17.267252) Line 285 + 0x3d bytes C++
Randwelt.exe!Forests::ImpostorPage::update() Line 171 C++
Randwelt.exe!Forests::GeometryPageManager::update(unsigned long deltaTime=16, Ogre::Vector3 & camPos={...}, Ogre::Vector3 & camSpeed={...}, bool & enableCache=true, Forests::GeometryPageManager * prevManager=0x02d5a328) Line 677 + 0x15 bytes C++
Randwelt.exe!Forests::PagedGeometry::update() Line 242 C++

I could not solve the problem with PagedGeometry, but avoiding the problem is actually quite simple: we just don't work with the original mesh but with a copied file for every TreeLoader. The copy is created at runtime and deleted with the TreeLoader. This works and may perhaps help any people who have the same problem.