Hello everyone,

I would like to know if there is some code to use Displacement mapping,
I love to use Pov-Ray for redering, but I construct models with displacement
mapping and subdivision surfaces so I would need a support for these
to use it for the future,

Regards,

Thor

Post a reply to this message

McHannemann wrote:
> Hello everyone,
> 
> I would like to know if there is some code to use Displacement mapping,
> I love to use Pov-Ray for redering, but I construct models with displacement
> mapping and subdivision surfaces so I would need a support for these
> to use it for the future,

POV-Ray is mainly a renderer and subdivision surfaces and displacement 
mapping are mainly modeling techniques.

There exists a patch for performing parse time subdivision of meshes:

http://www.cise.ufl.edu/~xwu/Pov-Sub/

and the compressed mesh system

http://www.geocities.com/ccolefax/pcm.html

supports deformation of meshes.

Furthermore there is the Surface Subdivision Suite:

http://www.geocities.com/evilsnack/nsss.htm


Christoph

-- 
POV-Ray tutorials, include files, Landscape of the week:
http://www.imagico.de/ (Last updated 31 Oct. 2005)
MegaPOV with mechanics simulation: http://megapov.inetart.net/

Post a reply to this message

Christoph Hormann <chr### [at] gmxde> wrote:
> McHannemann wrote:
> > Hello everyone,
> >
> > I would like to know if there is some code to use Displacement mapping,
> > I love to use Pov-Ray for redering, but I construct models with displacement
> > mapping and subdivision surfaces so I would need a support for these
> > to use it for the future,
>
> POV-Ray is mainly a renderer and subdivision surfaces and displacement
> mapping are mainly modeling techniques.
>
> There exists a patch for performing parse time subdivision of meshes:
>
> http://www.cise.ufl.edu/~xwu/Pov-Sub/
>
> and the compressed mesh system
>
> http://www.geocities.com/ccolefax/pcm.html
>
> supports deformation of meshes.
>
> Furthermore there is the Surface Subdivision Suite:
>
> http://www.geocities.com/evilsnack/nsss.htm
>
>
> Christoph

Hi Christoph, can you add subdivision feature to pov-ray or megapov like
"POV-Ray with Subdivision " This is very usefull thing.  ?

Regards.

Hasan

Post a reply to this message

I just tried the POV-Ray Subdivison code and it is working good,
so waht I really would need now would be the displacement mapping,
it is supported in most of the rendering systems I know.
And it is a very usefull modelling tool, but what for are things
like ZBrush if the rendering system does not support it ;-)

REgards,

Thor

Post a reply to this message

McHannemann <nomail@nomail> wrote:
> I just tried the POV-Ray Subdivison code and it is working good,
> so waht I really would need now would be the displacement mapping,
> it is supported in most of the rendering systems I know.

  If you want to move the vertices of a mesh around, then move them
around. If you are using the PCM format and the reader macros, it's
rather easy to do that.

-- 
                                                          - Warp

Post a reply to this message

Based on what I read in Wikipedia on displacement mapping, you could
possibly use a set of height_fields, but it would be a fair amount of
trouble.

Post a reply to this message

"Tangent128" <nomail@nomail> wrote:
> Based on what I read in Wikipedia on displacement mapping, you could
> possibly use a set of height_fields, but it would be a fair amount of
> trouble.

I have seen an update for poseray contains subdivison and displacement
mapping onto a mesh, I will try to see if I can get my Character done into
it, the original has 15 mil polys including the displacement... lets see
what poseray then povray can handle

Post a reply to this message

Christoph Hormann <chr### [at] gmxde> wrote:
> McHannemann wrote:
> > Hello everyone,
> >
> > I would like to know if there is some code to use Displacement mapping,
> > I love to use Pov-Ray for redering, but I construct models with displacement
> > mapping and subdivision surfaces so I would need a support for these
> > to use it for the future,
>
> POV-Ray is mainly a renderer and subdivision surfaces and displacement
> mapping are mainly modeling techniques.
>

In everything I've read on the web about displacement mapping, the term
itself always goes hand-in-hand with using polygonal models (and having to
subdivide the surface to get good results.)  Since POV's isosurfaces are
math constructs instead, and by nature "displaced surfaces"--and since an
image_map can be used as an isosurface function to further perturb such a
surface--it seems to me that this image_map technique could also be
called "displacement mapping."  Or is there a different term for it?

Ken

Post a reply to this message