I had some free time on my hands again this week and decided to rework another
old image, this time my 16 year old POVCOMP 2004 entry "Pathways" (it earned
23rd place).

This composition uses random 2D non-periodic Truchet tiling, a technique I first
learned from Paul Bourke about 20 years ago (he wrote about it a few years later
at http://paulbourke.net/geometry/tilingplane/) and that I've used in many
images over the years. In this case it's basically a union of a few hundred
torus segments with spheres attached at random positions.

I like this new version much better than the original; I rendered it mainly to
improve on the textures and lighting. The background is just a plane with
procedural bump and pigment mapping and the overall aspect ratio of the shot is
a golden rectangle.


Cheers,
Rob

-------------------------------------------------
www.McGregorFineArt.com

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Attachments:
Download 'pathways_2020_1920px.jpg' (3154 KB)

Preview of image 'pathways_2020_1920px.jpg'

POVCOMP 2004 surely had great entries. I remember this one from those times as
well. The new version is fantastic indeed! =)

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Robert McGregor wrote on 30/01/2020 21:19:
> I had some free time on my hands again this week and decided to rework another
> old image, this time my 16 year old POVCOMP 2004 entry "Pathways" (it earned
> 23rd place).
> 
> This composition uses random 2D non-periodic Truchet tiling, a technique I first
> learned from Paul Bourke about 20 years ago (he wrote about it a few years later
> at http://paulbourke.net/geometry/tilingplane/) and that I've used in many
> images over the years. In this case it's basically a union of a few hundred
> torus segments with spheres attached at random positions.
> 
> I like this new version much better than the original; I rendered it mainly to
> improve on the textures and lighting. The background is just a plane with
> procedural bump and pigment mapping and the overall aspect ratio of the shot is
> a golden rectangle.
> 
> 
> Cheers,
> Rob
> 
> -------------------------------------------------
> www.McGregorFineArt.com
> 
> 

This new render is so organic and so alive... fantastic!

Paolo

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Sir, that is a very intriguing creation. Would you be willing to share that
delightful green texture?

Kind regards,
Dave Blandston

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"Dave Blandston" <nomail@nomail> wrote:
> Sir, that is a very intriguing creation. Would you be willing to share that
> delightful green texture?
>
> Kind regards,
> Dave Blandston


Hi Dave,

I like his material too - like many other materials he made.
In the case Robert misses your post, look at the page for the original Povcomp
entry - here he describes the making of the texture
(http://www.povcomp.com/entries/137.php).

Based on his description, I constructed this material -

#declare p_map_metal = pigment {image_map {jpeg "colorful_pattern" gamma 2.2
map_type 0} scale 0.5}

#declare p_map_metal2 =
pigment {
 average
 turbulence 1
 pigment_map {
  [1      p_map_metal rotate 90*x]
  [1      p_map_metal rotate 90*y]
  [1      p_map_metal rotate 90*z]
 }
}

#declare fnPig = function {pigment {p_map_metal2}}

#declare N_Hammered =
normal {
 bozo
 normal_map {
  [0      dents 0.05 scale 0.01]
  [0.15   dents 0.05 scale 0.001]
  [0.3    dents 300  scale 0.0005]
  [0.45   dents 0.02 scale 0.01]
  [0.5    bumps 0.07 scale 0.01]
  [1      dents 0.05 scale 0.005]
 }
}

#declare T1 =
material {
 texture {
  pigment {p_map_metal2}
  normal {
   average
   normal_map {
    [1      function {fnPig (x,y,z).gray} bump_size 1 accuracy 0.001]
    [0.2    granite 0.5 scale 0.2 accuracy 0.001]
    [0.2    granite 0.75 scale 0.12 accuracy 0.001]
    [1      N_Hammered bump_size 1 accuracy 0.001]
   }
  }
  finish {
   diffuse 0.5
   specular 1
   roughness 0.003
   metallic
   reflection {0.4, 1 metallic fresnel on}
   conserve_energy
   brilliance 8
  }
 }
 interior {ior 1.43}
}

Norbert

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> I like his material too - like many other materials he made.
> In the case Robert misses your post, look at the page for the original Povcomp
> entry - here he describes the making of the texture
> (http://www.povcomp.com/entries/137.php).
>
> Based on his description, I constructed this material -

Hi Norbert!

Thank you for taking the time to post this amazing solution! I'll experiment
with the "colorful_pattern" image and see what wonders unfold.

Have a great day!

Kind regards,
Dave Blandston

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