POV-Ray : Newsgroups : povray.binaries.images : Sample scene. Outline text{} yuqk R19 docs : Re: Sample scene. Outline text{} yuqk R19 docs Server Time
2 Apr 2025 19:27:30 EDT (-0400)
  Re: Sample scene. Outline text{} yuqk R19 docs  
From: William F Pokorny
Date: 31 Mar 2025 12:15:42
Message: <67eabfae$1@news.povray.org>
On 3/23/25 23:32, William F Pokorny wrote:
> Anyhow. A technique to turn any font into an outline font as seen in the 
> image.

My eldest granddaughter has started to read. I used this outline method 
to create a - very colorful - printed letter sent to her by post.

Afterward, I found myself playing with variations while trying to speed 
the final renders - and get a smoother transition between the outline 
shadow an character(*).

In the attached image, the top sub-image uses traditional text objects 
in front of a white plane, heavy AA and no lights.

The remaining five sub-images turn off AA and removed the visible text 
objects - using only the area light projected through 2D text surfaces 
onto a white plane technique. Top to bottom, the magnitude of the 
negative light is increased in steps.

Stumbled into it, but it Looks pretty good to me as another POV-Ray 
'text / font processing' technique.

Bill P.

(*) - Anti-Aliasing works hard, but not well, due the large differences 
in channel values. It's basically the opposite of the jaggies we get 
with very bright regions. The outline technique here using large 
negative light values - which get clamped black for display and output.


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