POV-Ray : Newsgroups : povray.binaries.images : Proof of Concept: Cutoff Distance for Fading Lights : Re: Proof of Concept: Cutoff Distance for Fading Lights Server Time
29 Jul 2024 18:30:37 EDT (-0400)
  Re: Proof of Concept: Cutoff Distance for Fading Lights  
From: Mr
Date: 1 Feb 2014 04:20:01
Message: <web.52ecbc2a810450089805db690@news.povray.org>
clipka <ano### [at] anonymousorg> wrote:
> A scene with 1000 randomly placed light sources with distance-dependent
> attenuation (fade_power, fade_distance).
>
> First image: POV-Ray 3.7, render time 73s.
>
> Second image: experimental patch, render time 9s.
>
> For each light source, the patch automatically computes a cutoff
> distance based on light source brightness, fade parameters, and a global
> threshold (currently this is the global adc_bailout setting). Beyond
> this distance, the lights source is simply ignored.
>
> (As an alternative, the patch also allows for manually specifying the
> cutoff distance, but that's not used in this scene.)

How does the patch deal with radiosity? does it still provide an improvement?
any order of magnitude for it?


Post a reply to this message

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