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Jesse Connell wrote:
> Hello,
>
> I'm working on visualizing some simulation data with POVRay. Since what
> I'm dealing with is a set of 3D finite-element meshes, it looks like the
> best method is to convert the surface of my mesh into a POVRay mesh of
> smooth triangles and go from there. What I've done is split the
> quadrilaterals I have into triangles and compute normal vectors with a
> bunch of cross products. This works OK, but it has some problems, such
> as the shadow line artifact. Also, I don't see any easy way to
> distribute a range of colors on the surface of the mesh to represent a
> variable (ie, pressure or velocity magnitude).
>
> What (I think) I'd like to do is split the elements of my mesh into many
> more elements and smooth it out. I've found a few sets of macros and
> things for doing this, like the "New Surface Subdivision Suite" (
> http://www.geocities.com/evilsnack/nsss.htm ) and "POV-Ray with
> Subdivision". They all seem to be unmaintained, though, or at least very
> out of date. Does anyone here have a preferred way of smoothing /
> subdividing meshes? Also, is there any experience out there in general
> with using POVRay with finite element analysis data? I know that's not
> at all what it's designed for, but I think it could be very useful for
> generating images for presentations/posters/etc. Thanks,
>
> Jesse
PoseRay can subdivide meshes and export them to POV code. Load a mesh
and in the groups tab select subdivision and then press update. There
are several options you can play with for different results.
http://mysite.verizon.net/sfg0000/
good luck,
FlyerX
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