[ODE] Collision: Ray Vs Trimesh

[Jon Watte (ODE)]

The ray must use a normalized direction vector (length = 1), and set the 
length using the ray parameters.

The raycar demo has a FPS player based on a ray and a capsule; you can 
read the source for one perspective on how to do it.

http://www.mindcontrol.org/~hplus/raycar/

Cheers,

          / h+


Anderegg, Bradley (Brad) (CIV) wrote:
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>  
>
> Howdy,
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>  
>
> I am making a typical FPS motion model and I am using a ray for 
> determining my height.  For some reason, if the ray is long enough it 
> will pickup geometry below me (if I am in a two story building, or 
> overhanging porch) and not the geometry directly below me.  Are there 
> any known bugs with this, or are there caveats when using a ray with a 
> trimesh?
>
>  
>
> Brad
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>