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7 Aug 2024 03:15:36 EDT (-0400)
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From: Jim Charter
Subject: Re: Update: Ouroborous Snake and Escher Snake
Date: 12 Feb 2007 15:24:09
Message: <45d0cce9@news.povray.org>
St. wrote:
>     Ok, I think I've nailed this bump_mapping thingy.   ;)
> 
>    It was the only route I could take after trying loads of stuff with the 
> actual mesh.
> 
Steve, I for got to ask and now I am wondering, what did you use to do 
the UV mapping?

Wings? ...or something else such as UVmapper?


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From: St 
Subject: Re: Update: Ouroborous Snake and Escher Snake
Date: 12 Feb 2007 22:34:04
Message: <45d131ac$1@news.povray.org>
"Jim Charter" <jrc### [at] msncom> wrote in message 
news:45d0cce9@news.povray.org...
> St. wrote:
>>     Ok, I think I've nailed this bump_mapping thingy.   ;)
>>
>>    It was the only route I could take after trying loads of stuff with 
>> the actual mesh.
>>
> Steve, I for got to ask and now I am wondering, what did you use to do the 
> UV mapping?
>
> Wings? ...or something else such as UVmapper?

      Hey Jim, yes, I used Wings. I did it in reverse to the norm(?) though, 
I mapped and unfolded the flat inside of the snake to give it the normal 
gold texture, and then applied the bump_map to the outer, scaly, skin. 
(Doing it this way, I saved a whole heap of time by not selecting a trillion 
faces!) :o)

 //Material definitions =====

 // flat inside of snake

#declare Cube7_sep8_auv=texture{

  pigment{ colour Pink}

finish{
      diffuse 0.3
      ambient  -.055
      specular 0.6
      phong 1
      reflection {
        0.8
        metallic
      }
      conserve_energy
    }}


// Snake skin

#declare Default=texture{ pigment{ colour Pink}

finish{
      diffuse 0.3
      ambient  -.055
      specular 0.6
      phong 1
      reflection {
        0.8
        metallic
      }
      conserve_energy
    }
  normal {
      bump_map {
         jpeg "snake_tex4.jpg"
         bump_size 1
         interpolate 2
        map_type 3
      }
      scale .47
      rotate <0, 40, 0>
   }
   finish {ambient  -.055 phong .5 }}


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From: Jim Charter
Subject: Re: Update: Ouroborous Snake and Escher Snake
Date: 13 Feb 2007 14:33:53
Message: <45d212a1$1@news.povray.org>
St. wrote:
> "Jim Charter" <jrc### [at] msncom> wrote in message 
> news:45d0cce9@news.povray.org...
> 
>>St. wrote:
>>
>>>    Ok, I think I've nailed this bump_mapping thingy.   ;)
>>>
>>>   It was the only route I could take after trying loads of stuff with 
>>>the actual mesh.
>>>
>>
>>Steve, I for got to ask and now I am wondering, what did you use to do the 
>>UV mapping?
>>
>>Wings? ...or something else such as UVmapper?
> 
> 
>       Hey Jim, yes, I used Wings. I did it in reverse to the norm(?) though, 
> I mapped and unfolded the flat inside of the snake to give it the normal 
> gold texture, and then applied the bump_map to the outer, scaly, skin. 
> (Doing it this way, I saved a whole heap of time by not selecting a trillion 
> faces!) :o)
> 


I am not sure what you mean.


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From: St 
Subject: Re: Update: Ouroborous Snake and Escher Snake
Date: 14 Feb 2007 03:41:55
Message: <45d2cb53@news.povray.org>
"Jim Charter" <jrc### [at] msncom> wrote in message 
news:45d212a1$1@news.povray.org...
> St. wrote:

>>>Steve, I for got to ask and now I am wondering, what did you use to do 
>>>the
>>>UV mapping?
>>>
>>>Wings? ...or something else such as UVmapper?
>>
>>
>>       Hey Jim, yes, I used Wings. I did it in reverse to the norm(?) 
>> though,
>> I mapped and unfolded the flat inside of the snake to give it the normal
>> gold texture, and then applied the bump_map to the outer, scaly, skin.
>> (Doing it this way, I saved a whole heap of time by not selecting a 
>> trillion
>> faces!) :o)
>>
>
>
> I am not sure what you mean.

    Oh, well all I meant is that most people (I guess) would try and UV_map 
the actual outer scales of a snake 'first', which seems a bit like walking 
backwards on a high-poly  model when all you need to do is reverse the 
routine. So I just UV_map the inside (see attached), export, and then open 
PoseRay to give it a gold texture on the inside, and then apply the same 
gold texture and bump_map to the outer surface -  rotate the bump_map until 
satisfied, and it's done.

     My workflow is this:

       > Select faces
       > Select .UV_mapping.
       > Select Continue
       > Select Unfold
       > Export to .obj
       > Open .obj in PoseRay
       > Apply textures

     But yes, I used Wings...   ;)


           ~Steve~


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Attachments:
Download 'UV_inside.jpg' (65 KB)

Preview of image 'UV_inside.jpg'
UV_inside.jpg


 

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