POV-Ray : Newsgroups : povray.text.scene-files : Ringworld scene : Re: Ringworld scene Server Time
23 Feb 2024 02:46:27 EST (-0500)
  Re: Ringworld scene  
From: Bald Eagle
Date: 10 Feb 2021 07:20:00
Message: <web.6023ce928a87fb261f9dae300@news.povray.org>
Mike Horvath <mik### [at] gmailcom> wrote:

> The area light is necessary to create the fuzzy shadows. (Otherwise
> shadows would have a sharp edge and the lighted regions would be larger
> than the shadow regions IIRC.)

What if you gave the shadow squares a bit of transparency at the edges to allow
the formation of a penumbra on the ring?  It's a cheap cheat, but it may go
WAAAY faster.

Also Martijn just posted this recently:
https://www.shadertoy.com/view/WsyBDz


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