Crash in QBoundingVolume::updateImplicitBounds

Hi,

I'm getting some crashiness in QBoundingVolume::updateImplicitBounds() after manually calling renderer->updateImplicitBounds() due to raycasting not working for some imported assets.

In core/jobs/calcboundingvolumejob.cpp -> BoundingVolumeComputeData::fromView -> findBoundingVolumeComputeData

you are returning BoundingVolumeComputeResult::provider as a nullptr here -> return { nullptr, nullptr, positionAttribute, indexAttribute, drawVertexCount };

a bit later you are using it in data.compute -> provider -> view() -> primitiveRestartEnabled()

Any other way to nudge QT3d to provide bbox information?

For another time: It would be good to have bounding values for 2.5D objects like planes and patchgrids too.