POV-Ray: Newsgroups: povray.newusers: Blob: one component dominates texture?

POV-Ray : Newsgroups : povray.newusers : Blob: one component dominates texture?		Server Time 27 Nov 2024 23:32:23 EST (-0500)

From: Greg M Johnson
Subject: Blob: one component dominates texture?
Date: 18 Mar 2002 08:51:20
Message: <3c95f0d8$1@news.povray.org>

The answer is probably "no", but I'll ask:

Is there any way to have a blob where both components contribute to the
SHAPE in the usual fashion, but one component dominates the TEXTURE for
whatever it touches?    Examples: blobby eyebrow on a blob face,    clothing
pattern on the sleeve of an arm attached to a torso.

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From: bob h
Subject: Re: one component dominates texture?
Date: 18 Mar 2002 19:58:30
Message: <3c968d36$1@news.povray.org>

"Greg M. Johnson" <gregj:-)565### [at] aolcom> wrote in message
news:3c95f0d8$1@news.povray.org...
> The answer is probably "no", but I'll ask:

I think it is no too.  Rendering the example below shows that although the
texture can be dominant from one component the shape also changes.  I've
never seen any way around that.
My guess is it would take two instances of strength and radius combined
together having some opposite effect and yet merged in a new way.
Changing the threshold to compensate doesn't really make it the original
shape of all components having a 1.0 strength and radius.

bob h

light_source { <-5, 5, -20>,1.5 }

camera {
   location  -3*z
   look_at   0
}

blob {
   threshold .6
   sphere { <0, .5, 0>, 2, .75 pigment {red 1}}
   sphere { <-.67, -.67, 0>, 1, 1 pigment {green 1}}
   sphere { <.67, -.67, 0>, 1, 1 pigment {blue 1}}
}

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From: Greg M Johnson
Subject: Re: one component dominates texture?
Date: 19 Mar 2002 08:47:18
Message: <3c974166$1@news.povray.org>

"bob h" <omn### [at] charternet> wrote in message
news:3c968d36$1@news.povray.org...
> I think it is no too.

Thanks for thinking about it anyway...

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From: Peter Popov
Subject: Re: Blob: one component dominates texture?
Date: 20 Mar 2002 13:58:53
Message: <3tid9ukd5dpbcfuddopimk8ckmpiksat8a@4ax.com>

On Mon, 18 Mar 2002 08:49:57 -0500, "Greg M. Johnson"
<gregj:-)565### [at] aolcom> wrote:

>The answer is probably "no", but I'll ask:

Not directly.

>Is there any way to have a blob where both components contribute to the
>SHAPE in the usual fashion, but one component dominates the TEXTURE for
>whatever it touches?    Examples: blobby eyebrow on a blob face,    clothing
>pattern on the sleeve of an arm attached to a torso.

There might be a function-based way (a weighted blob pigment) but it
will probably be quite slow.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG      e-mail : pet### [at] tagpovrayorg

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