On item I haven't seen mentioned here is Volumetric Rendering.  Normally in
rendered 3D images what you see if light reflected off the surfaces of 3D
objects.  Sometimes they have assigned transmittance or filtering properties
that allows light to go through them but the details of their internal
structure (particularly with respect to the overall 3D entity) are not well
represented.

Some of the recent stuff I have done with POV (like molecular media) is a
combination of volume rendering (i.e. media) and surfaces.  However,
volumetric rendering is still in its infancy due to the enormous cpu
requirements for rendering every point in a (for example) a 1Kx1Kx1K array
(i.e. 1 million points).

Here are some links that will give you some insight into current products/
methods

http://ww.vaytek.com
http://www.volumegraphics.com
http://www.scioncorp.com/frames/fr_scion_products.htm
http://www.che.ufl.edu/visualize/technique/Scaler/volume.html
http://www.protospace.com/~calkinsc/graphics/vol/index.htm
http://www.alphatecltd.com/eik3dres.html
http://www.smisoft.ssd.co.jp/product/ts/volumetricR.html
http://www.cc.gatech.edu/scivis/tutorial/linked/volumevis.html

disclaimer:

I haven't been to all these sites.  Hope they help.

--
Jim

Check out my web site http://www.kressworks.com/
It'll blow your mind (politically), stimulate your senses (artistically)
and provide scientific insights beyond compare!

Be sure to read the Warp maintained POV VFAQ:
http://iki.fi/warp/povVFAQ.html




Spider wrote in message <3715F3B8.CEDA2ED5@bahnhof.se>...
>Ok, I've been povving for a while now, and I think most of you know that
I'm not
>very capable :-)
>Well, I have some questions for a pice of work in a class on presentation
>techniques..
>I humbly come to you, people of pov, to ask for your aid in this.
>My questions are in the field of 3D graphics and raytracing in specific.
>
>1)
>What are the current "cutting edge" techniques too create 3D images?
>I know of raytracing and scanline rendering. What other techniques exist?
>
>2)
>3D packages, prices for theese(full retail prices) as well as the technique
they
>are based on.
>
>3)
>explination of the other concepts in 3D graphics.(I for one don't know what
>NURBS is, this and other things are what I would like to know of)
>
>4)
>Good examples of POV in different usages..
>--
>
>Ok, I know it sounds like I''m trying to get you to do my work, but, I'm
not. I
>have some ideas and even more facts about the packages and techniques, but
I
>want to have more solid facts(and thoughts) on the subject, since I feel
that I
>may have several misunderstandings of facts..
>
>I'd be glad for any help from the group, thankyou.
>
>
>--
>//Spider
>        [ spi### [at] bahnhofse ]-[ http://www.bahnhof.se/~spider/ ]
>What I can do and what I could do, I just don't know anymore
>                "Marian"
>        By: "Sisters Of Mercy"
>
>

Post a reply to this message