POV-Ray : Newsgroups : povray.binaries.images : assumed_gamma, overlapping textures and transmit. : Re: assumed_gamma, overlapping textures and transmit. Server Time
7 Nov 2024 04:52:17 EST (-0500)
  Re: assumed_gamma, overlapping textures and transmit.  
From: clipka
Date: 18 Oct 2016 14:36:06
Message: <58066b96$1@news.povray.org>
Am 18.10.2016 um 18:29 schrieb William F Pokorny:

> The non-linear behavior of transmit in the ag 2.2 case is often helpful
> to the final appearance of layered textures - the gray out region is
> tighter. When trying to map a 2.2 texture say from Norbert's collection
> into my ag 1.0 working space, I start by converting any rgb colors to
> srgb (bottom row), but that is usually not enough if the transmit value
> in any part of the texture is not 0.0 or 1.0.

Your example uses very unsaturated colours; to get the full picture, you
should also try the same experiment with highly saturated colours. I can
imagine that you'll come to different conclusions there.


> Aside: I have been wondering for a while about a more probabilistic
> pixel based transmit mode for blending overlapping textures. Might such
> an approach help with the dulling/graying of overlapping partly
> transparent textures...

What do you mean by "probabilistic pixel based transmit mode"?


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