POV-Ray : Newsgroups : povray.unofficial.patches : Reflection! ~ inconsistancies among patches (and a bug?) Server Time
2 Nov 2024 11:26:16 EDT (-0400)
  Reflection! ~ inconsistancies among patches (and a bug?) (Message 1 to 7 of 7)  
From: SamuelT 
Subject: Reflection! ~ inconsistancies among patches (and a bug?)
Date: 18 Dec 1999 16:56:38
Message: <385C04E1.FA349AC8@aol.com>
Hello. I have noticed that angle-dependent reflection works
differently in Megapov than it does in Superpatch. All I want to do is
make some water that has a.d. reflection, reflecting like a mirror at
the horizon, and reflecting only slightly in the foreground. I'm not
getting this though; I'm getting a *bright* reflection instead. It seems
to me it shouldn't be this way. Is it a bug of bad calculations?
    I'm getting similar problems in both patches, except in the new
Megapov, objects cast shadows on the totally transparent water surface.
    It doesn't make sense to me why it is happening. Was it intentional?
It seems that the a.d. reflection patch was meant to make transparent
objects (like water) act like they do in real life, but the reflection
is additive to any underlying objects, causing the surface of the water
to become very bright.
    I can render some examples if you don't know what I'm talking about.
Thanks~

--
Samuel Benge

E-Mail: STB### [at] aolcom

Visit the still unfinished isosurface tutorial:
http://members.aol.com/stbenge


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From: TonyB
Subject: Re: Reflection! ~ inconsistancies among patches (and a bug?)
Date: 18 Dec 1999 18:47:32
Message: <385c1d14@news.povray.org>
Is the water transparent? Did you use transmit or filter? Remember the thing
Nathan did to that.


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From: SamuelT 
Subject: Re: Reflection! ~ inconsistancies among patches (and a bug?)
Date: 18 Dec 1999 20:55:33
Message: <385C3CE3.7A698829@aol.com>
The water has a filtering transparency.Transmit turned out worse that filter.
What did Nathan do to it?

TonyB wrote:

> Is the water transparent? Did you use transmit or filter? Remember the thing
> Nathan did to that.

--
Samuel Benge

E-Mail: STB### [at] aolcom

Visit the still unfinished isosurface tutorial: http://members.aol.com/stbenge


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From: TonyB
Subject: Re: Reflection! ~ inconsistancies among patches (and a bug?)
Date: 18 Dec 1999 22:22:28
Message: <385c4f74@news.povray.org>
>The water has a filtering transparency.Transmit turned out worse that
filter.
>What did Nathan do to it?


Search me. I just mentioned it because I think that he said he changed the
way that they work. Normally they both work the same, but now filter
actually filters. But I think that was in layered textures. Oh, I don't
know. Anyone?




PS: How is the isosurface list coming along? Send it to me and I might
consider rendering a batch of 'em for you. We could distribute the project.
=)


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From: Nieminen Juha
Subject: Re: Reflection! ~ inconsistancies among patches (and a bug?)
Date: 19 Dec 1999 13:44:35
Message: <385d2793@news.povray.org>
TonyB <ben### [at] panamaphoenixnet> wrote:
: Search me. I just mentioned it because I think that he said he changed the
: way that they work. Normally they both work the same, but now filter
: actually filters. But I think that was in layered textures. Oh, I don't
: know. Anyone?

  Yes, it affects only layered textures.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


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From: Nathan Kopp
Subject: Re: Reflection! ~ inconsistancies among patches (and a bug?)
Date: 19 Dec 1999 16:30:30
Message: <385d4e76@news.povray.org>
Please post a scene that shows this.
-Nathan

SamuelT. <STB### [at] aolcom> wrote...
>     Hello. I have noticed that angle-dependent reflection works
> differently in Megapov than it does in Superpatch. All I want to do is
> make some water that has a.d. reflection, reflecting like a mirror at
> the horizon, and reflecting only slightly in the foreground. I'm not
> getting this though; I'm getting a *bright* reflection instead. It seems
> to me it shouldn't be this way. Is it a bug of bad calculations?
>     I'm getting similar problems in both patches, except in the new
> Megapov, objects cast shadows on the totally transparent water surface.


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From: SamuelT 
Subject: Re: Reflection! ~ inconsistancies among patches (and a bug?)
Date: 19 Dec 1999 20:29:56
Message: <385D885F.ADFA5B94@aol.com>
Okay, I'll post a scene to scene.files

Nathan Kopp wrote:

> Please post a scene that shows this.
> -Nathan
>
> SamuelT. <STB### [at] aolcom> wrote...
> >     Hello. I have noticed that angle-dependent reflection works
> > differently in Megapov than it does in Superpatch. All I want to do is
> > make some water that has a.d. reflection, reflecting like a mirror at
> > the horizon, and reflecting only slightly in the foreground. I'm not
> > getting this though; I'm getting a *bright* reflection instead. It seems
> > to me it shouldn't be this way. Is it a bug of bad calculations?
> >     I'm getting similar problems in both patches, except in the new
> > Megapov, objects cast shadows on the totally transparent water surface.

--
Samuel Benge

E-Mail: STB### [at] aolcom

Visit the still unfinished isosurface tutorial: http://members.aol.com/stbenge


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