[ODE] collision matrix

[STenyaK (Bruno Gonzalez)]

I've updated the matrix by manually checking what functions there are in  
the code (trunk). I've also added the convex hull collision row/col, since  
it's present in the code.
Regarding plane-plane collision, there's not dCollidePlanePlane, however  
there's some internal function that checks whether a plane collides with a  
plane. It's probably easy to code that collision, maybe someone knows how  
to? Although i doubt many people will use it.. but just for the sake of  
filling the matrix with "yes" O:-)

If there are any issues with some of the collisions, could someone write  
about them? Has sphere-trimesh collision code been fixed?

On Sat, 22 Apr 2006 15:05:35 +0200, Bram Stolk <bram at sara.nl> wrote:

> Of the open intersection tests:
>
> - ray vs ray is indeed silly... they dont intersect due
>   to their infinite thin-ness.
> - plane vs trimesh is a simple problem, especially when
>   done naively by iterating through triangles.
> - cyl vs cyl is a very hard one. I'm affraid it takes
>   a mathematics Phd to do this properly. I did see a
>   paper with an algorithm for this though, floating on the net.
>   No sample code though.
> - cyl vs capsule is probably just as hard.
> - cyl vs ray is simple, and in fact, the code
>   is already there for solving the cyl/plane
>   case, but not exposed to the engine.
>
>   bram
>
> -----Original Message-----
> From: ode-bounces at q12.org on behalf of Jordi
> Sent: Sat 4/22/2006 13:09
> To: ode at q12.org
> Subject: Re: [ODE] collision matrix
>
>> I've added wikipedia-like templates for yes-no-partial-partial2. What's
>> the meaning of those XX? I've left the XX, but i suggest using a full
>> description. Please let me know which it is, and i'll add it properly to
>> the table using a reference so that the table does not get ugly.
>>
> I suppose that the meaning is "no, and will not". It's not reasonable to
> collide rays between them ( Not in rigid physics simulation)
>
> --
> Jordi Polo
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-- 
Saludos,
     STenyaK

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