POV-Ray : Newsgroups : povray.binaries.images : Back with multi-reflection pics (was 34K jpg) Server Time
5 Oct 2024 01:15:59 EDT (-0400)
  Back with multi-reflection pics (was 34K jpg) (Message 1 to 2 of 2)  
From: Bob Hughes
Subject: Back with multi-reflection pics (was 34K jpg)
Date: 8 Feb 1999 04:04:09
Message: <36BEA856.75CE5233@aol.com>
Okay, I've checked to be sure what multiple reflections do for at least
my own sake if no one elses.
I already had a double (face to face) mirror scene from long ago I had
made with a partially done twin lens camera for a prop to create the
multiple reflections. However I had since forgotten how the reflections
appear to fade out progressively (or is that regressively? no matter).
I did a few renders again to check how or why this is. It's because of
pigmentation of the mirrored surfaces, plain and simple.
The four images combined into one here shows a regular "first" picture
which uses focal blur instead of antialiasing at upper left. Upper right
is a SuperPatch reflection blur, still regular colored mirrors of the
original. So then I tried white mirrors and the reflection "fading" is
obvious, and so is the reason why. Finally the black mirrors (white
camera model for clarity) shows complete lack of fading. This one may
appear to diminish the whitish camera into grayer camera as the number
of reflections increase (max_trace_level 12, btw) but I'm certain its
the default antialiasing I used for these last two blending the black
with white.
So, in conclusion: this might make for yet another feature addition
idea. A variable reflection through which even 'pigment {rgb 0}' could
fade out multiple reflected objects.

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.htm
=Bob


Post a reply to this message


Attachments:
Download 'mmirrors.jpg' (37 KB)

Preview of image 'mmirrors.jpg'
mmirrors.jpg


 

From: Kyle
Subject: Re: Back with multi-reflection pics (was 34K jpg)
Date: 8 Feb 1999 14:33:16
Message: <36BF3BFC.FF6665F0@geocities.com>
Hmm...interesting.  Everything in my scene was enclosed within a hollow
cube with a rgb of 0 and a reflexive value of .7 or something around
there.  I hadn't noticed the effect you described but I see it now. 
Good observation :-)
		Kyle


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.