POV-Ray : Newsgroups : povray.binaries.images : billboard tint : Re: billboard tint Server Time
14 Apr 2024 04:52:51 EDT (-0400)
  Re: billboard tint  
From: Mike Miller
Date: 4 Nov 2023 11:15:00
Message: <web.65465edf310e11ef22cdb33dabc9342@news.povray.org>
Thomas de Groot <tho### [at] degrootorg> wrote:
> Op 3-11-2023 om 17:49 schreef Mike Miller:
> > After taking some time off from POV, I'm ready to tackle a few new scenes I have
> > in mind. One involves a landscape with some foreground vegetation. I started
> > collecting some 2D sprite images of moss, grasses, and weeds thinking that I
> > could populate the ground with them. I've run into a problem with the
> > transparent portion of the png when turning on fog. The fog is tinting the
> > billboard shape. I've removed the finish and have tried a variety of things in
> > the shader with no success. I can fall back on 3D models if I can't get the
> > sprites to work.  Below is what I used to texture this example. I understand
> > that the bump statement will not have much of an effect without a finish. Any
> > help would be appreciated.
> > Thanks,
> > Mike.
> >
>
> No /help/ from this side, just the (historical) mention that this
> particular fog problem has been around since... prehistory. I first hit
> it, I think, sometime in the late '90's or early '20's when I tried to
> do exactly what you want to do. At the time I was also directed to use
> media instead of fog. Otherwise, there was no satisfying workaround.
>
> --
> Thomas

Same...I do remember trying this before back in the day. I guess I always use a
touch of fog in my scenes. It looks like turbulence 0 in the fog statement
works.
Mike.


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