Re: [Algorithms] mesh to 3D texture?

[Michael H. <mh...@gm...>]

I've not personally done this work but do recall a few papers I've read on
the topic.

The following paper should be particularly germane. It details an approach
for one pass solid voxelization. It also describes a method for determining
a density field from which you can derive normal data. I imagine depending
on your buffer width you could record encoded normal and color samples in
the first pass, though this data only really is meaningful for the
isosurface itself.
http://artis.imag.fr/Publications/2008/ED08a/solidvoxelizationAuthorVersion.pdf


Some more reading, though I've not read this paper in depth.
http://www.mpi-inf.mpg.de/~mschwarz/papers/vox-siga10.pdf

-Michael

On Thu, Aug 25, 2011 at 10:04 AM, Jeff Russell <je...@8m...>wrote:

> So, suppose that I wanted to voxelize a mesh into a regular 3D grid (a 3D
> texture on the GPU, fairly low res, something like 64^3). At each point I'd
> like to have access to color, a (rough) surface normal, and some kind of
> indicator of whether the space is "empty" or "filled".
>
> Is there some clever way I can use GPU rasterization to fill it (ideally
> keeping the whole process on the GPU)? I thought about rendering the mesh in
> slices with very narrow front and back clip planes, once for each slice of
> the 3D texture, but it seems like there could be issues with polygons
> perpendicular to my z axis not showing up, creating holes...
>
> Any advice?
>
> --
> Jeff Russell
> Engineer, 8monkey Labs
> www.8monkeylabs.com
>
>
> ------------------------------------------------------------------------------
> EMC VNX: the world's simplest storage, starting under $10K
> The only unified storage solution that offers unified management
> Up to 160% more powerful than alternatives and 25% more efficient.
> Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev
> _______________________________________________
> GDAlgorithms-list mailing list
> GDA...@li...
> https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list
> Archives:
> http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list
>