POV-Ray : Newsgroups : povray.binaries.images : experiment with image_map Server Time
25 Jan 2022 16:02:33 EST (-0500)
  experiment with image_map (Message 1 to 3 of 3)  
From: tth
Subject: experiment with image_map
Date: 28 Dec 2021 10:56:28
Message: <61cb33ac@news.povray.org>
ehlo

Last monte, in povray.general, I was thinking about image_map and
interpolate methodes. So I write a quick'n'dirty hack to have a
look of the current options.

Next step : look deeper in this field, and look at the povray
    source code. Any advice ?

tTH


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poc.png

Preview of image 'pixart.png'
pixart.png

From: Kenneth
Subject: Re: experiment with image_map
Date: 28 Dec 2021 12:40:00
Message: <web.61cb4bbd60f6dbe14cef624e6e066e29@news.povray.org>
If you want the rendered result to look 'sharper' and more like your image_map,
you should not use interpolate at all. But, if you like the blurry look of your
render example, then using interpolate is the proper way to do it.

Do your 3 render examples use 3 *different* methods of interpolation?


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From: tth
Subject: Re: experiment with image_map
Date: 28 Dec 2021 13:15:51
Message: <61cb5457@news.povray.org>
On 12/28/21 6:39 PM, Kenneth wrote:
> If you want the rendered result to look 'sharper' and more like your image_map,
> you should not use interpolate at all. But, if you like the blurry look of your
> render example, then using interpolate is the proper way to do it.

   OK, shame on me, I've forget the option "say nothing about
   interpolate", and tryed some values for the parameter, and
   expected that "interpolate 0" can do the job.

   Just an useless and toxic callin convention for me.

> Do your 3 render examples use 3 *different* methods of interpolation?
> 

    Code and pic updated.

Thx for your feedback, tTh

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