POV-Ray : Newsgroups : povray.binaries.images : Displacement function in Poseray Server Time
27 Oct 2021 03:28:12 EDT (-0400)
  Displacement function in Poseray (Message 1 to 5 of 5)  
From: Thomas de Groot
Subject: Displacement function in Poseray
Date: 3 Jul 2021 04:56:23
Message: <60e02637@news.povray.org>
Following Norbert Kern's 'Mountain forest', I wanted to show here an 
example of the easy use of the Displacement function in Poseray, and 
which is not enough known, I guess.

First make an object and an uv-mapped texture. Then import in Poseray.

A first image shows the used settings in Poseray:
- a displacement map can be made with Gimp, based on the image map used. 
it should/could be blurred/dilated with Gimp, then with IC;
- amount of displacement -0.01 (black) and 0.02 (white); only the x and 
z components in the case of this wall;
- adaptive subdivision (threshold 0.05 to 0.1 according to cases);
- after this, 'Displace geometry' generates the displacement of the object.

The second image shows the result rendered in POV-Ray.

-- 
Thomas


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Attachments:
Download 'poseray_displacement1.jpg' (268 KB) Download 'test_displacement4.jpg' (99 KB)

Preview of image 'poseray_displacement1.jpg'
poseray_displacement1.jpg

Preview of image 'test_displacement4.jpg'
test_displacement4.jpg


 

From: Thomas de Groot
Subject: Re: Displacement function in Poseray
Date: 18 Oct 2021 10:43:42
Message: <616d881e@news.povray.org>
Another interesting displacement material is the one obtained with the 
'strands' application by Sam Benge. Attached are the results, one with 
the used image_map superposed over the resulting displacement.

-- 
Thomas


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Attachments:
Download 'test_displacement_strandsbust1.jpg' (88 KB) Download 'test_displacement_strandsbust2.jpg' (76 KB)

Preview of image 'test_displacement_strandsbust1.jpg'
test_displacement_strandsbust1.jpg

Preview of image 'test_displacement_strandsbust2.jpg'
test_displacement_strandsbust2.jpg


 

From: Paolo Gibellini
Subject: Re: Displacement function in Poseray
Date: 22 Oct 2021 10:12:56
Message: <6172c6e8$1@news.povray.org>
Il 18/10/2021 16:43, Thomas de Groot ha scritto:
 > Another interesting displacement material is the one obtained with the
 > 'strands' application by Sam Benge. Attached are the results, one with
 > the used image_map superposed over the resulting displacement.
 >

Really interesting!

Paolo


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From: Thomas de Groot
Subject: Re: Displacement function in Poseray
Date: 22 Oct 2021 10:48:20
Message: <6172cf34$1@news.povray.org>
Op 22-10-2021 om 16:13 schreef Paolo Gibellini:
> Really interesting!
> 
Yes indeed. I just discovered that Jaime was a trailblazer:
http://www.ignorancia.org/index.php/technical/experiments/mesh-displacement/ 
  :-)

-- 
Thomas


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From: Paolo Gibellini
Subject: Re: Displacement function in Poseray
Date: 24 Oct 2021 17:59:34
Message: <6175d746@news.povray.org>
Il 22/10/2021 16:48, Thomas de Groot ha scritto:
 > Op 22-10-2021 om 16:13 schreef Paolo Gibellini:
 >> Really interesting!
 >>
 > Yes indeed. I just discovered that Jaime was a trailblazer:
 > 
http://www.ignorancia.org/index.php/technical/experiments/mesh-displacement/ 

 >   :-)
 >

Indeed, a traiblazer with evening dress!

Paolo


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