Ray query mask type sufficient?

[Lax]

Hello all,

I'm using ray scene query masks intensively in my projects. I know that its possible to have 32 different types.

More precisely setQueryMask takes a 32bit unsigned int, so the values can go up to 1<<31

But I'm now starting to encounter issues, as I'm using query masks for categories, like house, car, object etc. so 32 types are not sufficient.

I wonder, if it would be possible for Ogre2.x to go up using unsigned long (64bit) for masks, so that more different types could be queried.
Or is there another trick, how to pack more types?

What do you think?

Regards
Lax

[hyyou]

Probably not the answer you are looking for ....

I love to query such thing from Physic-specific library e.g. Bullet, instead.
http://bulletphysics.org/mediawiki-1.5. ... ng_RayTest

It is a free library like Ogre and has the feature (>32 ray test) that you want.

[dark_sylinc]

hyyou is probably right. Such detail is asking for a more specialized library.

There is still something you can do though.
SceneQuery::mFirstRq and SceneQuery::mLastRq are public variables and you can modify them. This lets you constrain the search to particular groups of RenderQueues; thus you could use this to extend what the visibility flags mean depending on the render queue you're on.

However altering the RenderQueue in which an object lives affects render order, which may impact performance (either positively, negatively, or the change is negligible) or visual correctness (e.g. transparent objects should be rendered back to front)

[Lax]

Hi,

hm sounds a bit of complicated and hacky for me. I naively thought, that changing the query mask data type from unsigned int to unsigned long would be sufficient...

Regards
Lax