POV-Ray : Newsgroups : povray.general : Interpolating between textures using clock? : Re: Interpolating between textures using clock? Server Time
27 Nov 2022 20:11:26 EST (-0500)
  Re: Interpolating between textures using clock?  
From: Josh English
Date: 3 Feb 2022 00:32:06
Message: <61fb68d6$1@news.povray.org>
On 2/2/2022 4:25 PM, tutki wrote:
> I have an object that simulates a generic computer screen using the `cells`
> texture to generate a grid of random-colored pixelated blocks.  I'd like to make
> an animation of this where the "screen pixels" gradually change in color based
> on the `clock` variable. Is there a simple way to do this?
> 
> My current idea is to somehow interpolate between two `cells` textures (by
> displacing them relative to each other by some random integral offset) and doing
> the equivalent of pigment1*clock + pigment2*(1-clock). So basically interpolate
> between two random cells patterns according to the value of clock (or some other
> such derived variable). But I can't figure out how to express this in SDL?  Can
> anyone help?
> 
> 
The cells pattern can be updated with the phase keyword. Use a color map 
that doesn't blend colors and you can simulate blinking of colors.

Uncle Josh


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