In article <3d4518a0@news.povray.org>, "Simon Adameit" <gom### [at] gmxde> 
wrote:

> But imho lensflares aren't caustics but multiple specular reflections of a
> light source.
> So why do you need photons to simulate them?

Most surfaces wouldn't be directly exposed to the light, so they would 
either be in shadow or be getting transmitted light that should have 
been refracted or reflected. Highlights alone won't do the job, they 
will always look as though they come from light directly from the light 
source.

However, I never heard about doing it with photons...my idea of the 
technique was always to put a very small reflection on the lens and make 
a very bright object or a glow at the light position. That would 
simulate all the refraction and reflection and doesn't need photons.

-- 
Christopher James Huff <chr### [at] maccom>
POV-Ray TAG e-mail: chr### [at] tagpovrayorg
TAG web site: http://tag.povray.org/

Post a reply to this message