Re: [Algorithms] Collision and visibility detection

[Leigh M. <lei...@co...>]

  Not sure if this is OT or not but how do you do your physical materials in
Max?  I made a scripted plugin and added some of my own fields.  So now a
material has flags for visable and collidable.  When I export I do one pass
for all the visable and then a second pass gathers the collidable and makes
a collision mesh from them.  Actually I reworte the whole interface to map
more to OpenGL like parameters and added multi-texture stuff.  I think
RenderWare does something simular.  The thing is thats it a pain to manage
your own material plugin since Max script has lots of "Can't get there from
here" in it.  So the more specific question is, do you tag it someother
simpler way.  I really think that XML should fit into this somehow :)

Leigh

----- Original Message -----
From: "Douglas Cox" <zi...@ho...>
To: <gda...@li...>
Sent: Wednesday, November 20, 2002 9:51 PM
Subject: RE: [Algorithms] Collision and visibility detection


> >After you get a few properties, you save a lot of memory if you
> >do "physical materials" just like rendering has render materials,
> >each referred to by many triangles.
>
> We do the same.  Materials for visible geometry, and 'surfaces' for
> collidable geometry.  Since we use two different sets of tris, the artist
> just use materials in Max applied to collision geometry to denote
surfaces.
> Then the surfaces are configured in our editor for footstep effects, touch
> events, collision masks, etc...
>
> -doug
>
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