 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
I'm trying to simulate indirect lighting, by bouncing lights off of the
ceiling before it hits the objects below. But it doesn't seem to be
bouncing down! Everything below the light is pitch black, but the ceiling
is a bright white. Does POVray just not do this or am I doing something
wrong? Thanks.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Larkril wrote:
>
> I'm trying to simulate indirect lighting, by bouncing lights off of the
> ceiling before it hits the objects below. But it doesn't seem to be
> bouncing down! Everything below the light is pitch black, but the ceiling
> is a bright white. Does POVray just not do this or am I doing something
> wrong? Thanks.
Pov simply does not do this. You are better of trying area lights using
fade distance and fade power to acieve this affect or learn to use
radiosity. The first method will defintely be the easiest to learn and
use.
--
Ken Tyler
mailto://tylereng@pacbell.net
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Official POV-Ray doesn't do reflecting light, but there is an unofficial
version which has a feature called photon mapping, which can do this. It
is called UVPov, and is at:
http://nathan.kopp.com/patched.htm
An idea: give the ceiling a very small scaled normal(to blur the
reflection), give it some reflection, and enable photons for it.
Post a reply to this message
|
|
| |
| |
|
|
From: Ron Parker
Subject: Re: Indirect Lighting(Reflective Ceiling)
Date: 21 Jun 1999 16:19:07
Message: <376e9e3b@news.povray.org>
|
|
|
| |
| |
|
|
On Mon, 21 Jun 1999 14:47:02 -0500, Chris Huff wrote:
>Official POV-Ray doesn't do reflecting light, but there is an unofficial
>version which has a feature called photon mapping, which can do this. It
>is called UVPov, and is at:
The photon patch doesn't do diffuse interreflection (e.g. ceilings)
It only does reflection from specular surfaces (e.g. mirrors).
For diffuse interreflection you want to use the radiosity features
that are in the official POV, or fake it with a suitable area light.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
I know, but I have never gotten radiosity to work right, but find photon
mapping easy and fast. By giving the surface a normal of very tiny
bumps, diffuse lighting should be fairly easy to simulate.(although it
may affect the color of the ceiling too much.) Also, I thought radiosity
used ambient values of the objects for illumination, but largely ignored
light_sources, I guess I was wrong.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Thanks for all the help. I think I'm just going to fake it by using area
lights located on the ceiling. Thanks again!
Larkril <rla### [at] mbhs edu> wrote in message news:376e8663@news.povray.org...
> I'm trying to simulate indirect lighting, by bouncing lights off of the
> ceiling before it hits the objects below. But it doesn't seem to be
> bouncing down! Everything below the light is pitch black, but the ceiling
> is a bright white. Does POVray just not do this or am I doing something
> wrong? Thanks.
>
>
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
