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In article <3e9851c1@news.povray.org>,
"SYLVAIN LESEUR" <sle### [at] free fr> wrote:
> Create smoke or flamme is not easy and to much hard for
> a thing so simple.
Appearances are deceptive...the reason they are hard is that they are
*not* simple.
> But it's easy to create a disc with a texture like smoke or flamme
> The trouble is: the disc must be in front of the camera.
> How can i do that?
> A macros ? A .inc ? A code who do that.
> Who say to the disc. Hello disc, you must rotate! The
> camera translating.
To specify a disc, you give a center and a normal direction. Just set
the normal to camera location - disc center to point it at the camera.
There are fairly obvious problems with this method: reflections,
refractions, shadows, etc. will simply look wrong, and you could end up
with an obvious disc shape visible. This trick is usually only used in
games and other places where you need real-time rendering, or in places
where there isn't enough detail to notice the flaws.
--
Christopher James Huff <cja### [at] earthlink net>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tag povray org
http://tag.povray.org/
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