[ODE] How to perform efficient ray-space collision detection?

[Maciej Sawitus]

Hi,

That's very interesting. I've read here and there that a space is treated  
as geometry in ODE, but haven't found any information on how to retrieve  
geom id from the space id before.
The reinterpret_cast possibility from geom id to space id was not  
mentioned anywhere in the docs of ODE, so it looks like a little hack -  
assumes that such a cast succeeds.

I'll try that,
Thanks!

Maciej Sawitus

Dnia Mon, 10 Apr 2006 10:43:15 +0200, Patrick McColgan  
<patrick at torcinteractive.com> napisał:

>  From the docs:
>
> dSpaceCollide2() determines which geoms from one space may potentially
> intersect with geoms from
> another space, and calls a callback function with each candidate pair.*
> It can also test a single nonspace
> geom against a space*.
>
> Have a look at that, off the top of my head you may have to use
> "reinterpret_cast<dGeomID>(mdSpaceID)" on the space id.
>
> Maciej Sawitus wrote:
>> Hi everyone,
>>
>> How would you implement ray-space collision detection?
>> I expected there would be
>> dCollide(dSpaceID, dGeomID, ...) method
>> but there's not.
>>
>>
>>
>
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