[ODE] Finding Triangles

[Flavien Brebion]

I think it'd a bad idea. First of all, from what i remember,
Opcode returns a list of triangles that INTERSECT the two input
meshes. So you won't get the list of triangles that are "inside"
the sphere; you'll just get the triangles that intersect its
boundary.

I think for projecting shadows you should rather determine which
objects are in this sphere volume. A kind of hierarchical data
structure would help (like an octree).

F. Brebion


-----Original Message-----
From: ode-bounces at q12.org [mailto:ode-bounces at q12.org]On Behalf Of Brian
Clarkson
Sent: Saturday, February 07, 2004 10:16 AM
To: ode at q12.org
Subject: [ODE] Finding Triangles



Hi everyone

This is a little of topic but I want to use opcode to determine which
triangles are inside a sphere.
How can I get a list of all the triangles in a tri mesh that are inside a
sphere. I am creating a shadows using
shadow maps and I want to know which triangles to render the shadows onto.


Thanks

Brian..



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