POV-Ray : Newsgroups : povray.general : Metal Flake Server Time
10 Aug 2025 15:18:03 EDT (-0400)
  Metal Flake (Message 1 to 4 of 4)  
From: Bald Eagle
Subject: Metal Flake
Date: 8 Aug 2025 13:35:00
Message: <web.689634f9efa6589544e64d2825979125@news.povray.org>
I am in need of a metallized paint/epoxy texture like the following:
https://www.shadertoy.com/view/Ndlczs

If anyone has a copy of Tek's "metal flake" texture from evilsuperbrain.com,
that would be great.

Anything resembling glitter, aluminized paint, or the like would be much
appreciated.

- BE


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From: ingo
Subject: Re: Metal Flake
Date: 8 Aug 2025 14:15:00
Message: <web.68963e8058840e8817bac71e8ffb8ce3@news.povray.org>
"Bald Eagle" <cre### [at] netscapenet> wrote:
> Anything resembling glitter, aluminized paint, or the like would be much
> appreciated.
>

I can't find my code, so describing it: a crackle pattern where each cell has a
grey value. A simple ramp like gradient pattern as normal (pattern) where the
orientation / rotation of the normal is determined by the grey value of crackle.
Scale small.

Rotating the object catches light depending on orientation and light source
position.


ingo


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From: ingo
Subject: Re: Metal Flake
Date: 8 Aug 2025 14:20:00
Message: <web.68963f6c58840e8817bac71e8ffb8ce3@news.povray.org>
https://news.povray.org/povray.binaries.animations/thread/%3C8ED89F3D4seed7%40204.213.191.228%3E/

found the animation of it and some code.

ingo


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From: Bald Eagle
Subject: Re: Metal Flake
Date: 8 Aug 2025 14:30:00
Message: <web.689641e858840e8844e64d2825979125@news.povray.org>
"ingo" <nomail@nomail> wrote:
>
https://news.povray.org/povray.binaries.animations/thread/%3C8ED89F3D4seed7%40204.213.191.228%3E/
>
> found the animation of it and some code.
>
> ingo

Wow - super fast!
I'm hoping I get a chance to plug that into the current project tonight,
otherwise it may have to wait until next week.  :/

I see from the implementations elsewhere, and the comments on your scene that
using AOI might be another way to do this.

Thanks  :)

- BW


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