Hello everybody, is it possible to figure out how much light intensity is
falling on my camera.. or any other point of interest? would be verymuch
thankful to anyone who could give me a hint/answer to my problem..
Thank you verymuch in advance
cheers
amar
From: Bob Hughes
Subject: Re: Is this possible?
Date: 19 Mar 2006 04:12:58
Message: <441d209a$1@news.povray.org>
<amar> wrote in message
news:web.441ca009f2531303c46bf1ef0@news.povray.org...
> Hello everybody, is it possible to figure out how much light intensity is> falling on my camera.. or any other point of interest? would be verymuch> thankful to anyone who could give me a hint/answer to my problem..
The function eval_pigment (from functions.inc) could probably be used to
scan a prerendered scene (image_map of that). Would be an indirect way of
finding the amount of light intensities by plotting the results. AFAIK that
might be the only way of going about it.
--
Bob H www.3digitaleyes.com
http://3digitaleyes.com/imagery/
From: Christoph Hormann
Subject: Re: Is this possible?
Date: 19 Mar 2006 04:25:03
Message: <dvj812$ikv$1@chho.imagico.de>
amar wrote:
> Hello everybody, is it possible to figure out how much light intensity is> falling on my camera.. or any other point of interest? would be verymuch> thankful to anyone who could give me a hint/answer to my problem..
To calculate how much light is falling on the location of the camera you
could render the scene with a spherical camera and sum over the pixel
intensities with weighting according to the pixel sizes.
To just calculate how much light enters into your current camera view do
the same with your normal camera.
And please don't multi-post the same question into several groups.
Christoph
--
POV-Ray tutorials, include files, Landscape of the week:
http://www.imagico.de/ (Last updated 14 Mar. 2006)
MegaPOV with mechanics simulation: http://megapov.inetart.net/
