POV-Ray : Newsgroups : povray.binaries.images : uv_mapping Server Time
29 Jul 2024 18:18:28 EDT (-0400)
  uv_mapping (Message 1 to 9 of 9)  
From: James Holsenback
Subject: uv_mapping
Date: 15 Feb 2014 18:31:58
Message: <52fff8ee@news.povray.org>
image showing my problem mentioned in p.general ... top one /with/ 
uv_mapping bottom one /without/


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From: jhu
Subject: Re: uv_mapping
Date: 15 Feb 2014 19:00:01
Message: <web.52fffefdb7d5a815d19b0ec40@news.povray.org>
James Holsenback <nom### [at] nonecom> wrote:
> image showing my problem mentioned in p.general ... top one /with/
> uv_mapping bottom one /without/

So, you're taking my suggestion of texture baking the marble floor of your dice.
Should look good once it's done.


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From: Le Forgeron
Subject: Re: uv_mapping
Date: 16 Feb 2014 03:26:27
Message: <53007633@news.povray.org>
Le 16/02/2014 00:31, James Holsenback nous fit lire :
> image showing my problem mentioned in p.general ... top one /with/
> uv_mapping bottom one /without/

The image seems good to me.
The not-uv-mapped is using pattern with a size of 19 (9.5*2),
whereas the uv-mapped is using the same pattern (at z=0) with a size of
1, (range of your uv-vectors).

If you want the same "aspect", you need a scale 1/19 on the texture (of
top mesh).


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From: James Holsenback
Subject: Re: uv_mapping
Date: 16 Feb 2014 06:34:27
Message: <5300a243@news.povray.org>
On 02/16/2014 03:26 AM, Le_Forgeron wrote:
> Le 16/02/2014 00:31, James Holsenback nous fit lire :
>> image showing my problem mentioned in p.general ... top one /with/
>> uv_mapping bottom one /without/
>
> The image seems good to me.
> The not-uv-mapped is using pattern with a size of 19 (9.5*2),
> whereas the uv-mapped is using the same pattern (at z=0) with a size of
> 1, (range of your uv-vectors).
>
> If you want the same "aspect", you need a scale 1/19 on the texture (of
> top mesh).
>

yep ... that's the obvious answer ;-)

tried all kinds of various transformations ... this image has non uv 
mapped scale at 1 and uv mapped scale at 0.05 (~ 1/19 )


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From: Le Forgeron
Subject: Re: uv_mapping
Date: 16 Feb 2014 09:24:23
Message: <5300ca17@news.povray.org>
Le 16/02/2014 12:33, James Holsenback nous fit lire :

> yep ... that's the obvious answer ;-)
> 
> tried all kinds of various transformations ... this image has non uv
> mapped scale at 1 and uv mapped scale at 0.05 (~ 1/19 )
> 
> 

Ok, time to post the whole scene. I'm out of idea.


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From: James Holsenback
Subject: Re: uv_mapping
Date: 16 Feb 2014 10:29:36
Message: <5300d960$1@news.povray.org>
On 02/16/2014 09:24 AM, Le_Forgeron wrote:
> Le 16/02/2014 12:33, James Holsenback nous fit lire :
>
>> yep ... that's the obvious answer ;-)
>>
>> tried all kinds of various transformations ... this image has non uv
>> mapped scale at 1 and uv mapped scale at 0.05 (~ 1/19 )
>>
>>
>
> Ok, time to post the whole scene. I'm out of idea.
>

don't think it's the scene but rather how i've got the object setup in 
blender. when i get a chance i'm gong to move the object so that's it 
ends up with lower left corner is at 0,0 ... then the object will be 
totally in the +x,+z quadrant (povray handiness). i've been playing 
around with scale of 1 in texture and fiddle with scaling uv_vectors ... 
i've at least got the pattern to appear mapped to the center of the 
object. yikes this is turning out to be more involved than anticipated


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From: Le Forgeron
Subject: Re: uv_mapping
Date: 16 Feb 2014 11:23:35
Message: <5300e607@news.povray.org>
Le 16/02/2014 16:29, James Holsenback nous fit lire :
> On 02/16/2014 09:24 AM, Le_Forgeron wrote:
>> Le 16/02/2014 12:33, James Holsenback nous fit lire :
>>
>>> yep ... that's the obvious answer ;-)
>>>
>>> tried all kinds of various transformations ... this image has non uv
>>> mapped scale at 1 and uv mapped scale at 0.05 (~ 1/19 )
>>>
>>>
>>
>> Ok, time to post the whole scene. I'm out of idea.
>>
> 
> don't think it's the scene but rather how i've got the object setup in
> blender. when i get a chance i'm gong to move the object so that's it
> ends up with lower left corner is at 0,0 ... then the object will be
> totally in the +x,+z quadrant (povray handiness). i've been playing
> around with scale of 1 in texture and fiddle with scaling uv_vectors ...
> i've at least got the pattern to appear mapped to the center of the
> object. yikes this is turning out to be more involved than anticipated

I just meant the scene with the two squares. It should be short enough.

If blender is in the equation, maybe someone else can help... but
finding first what would have been the correct pov-scene might help too.


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From: James Holsenback
Subject: Re: uv_mapping
Date: 16 Feb 2014 14:08:20
Message: <53010ca4$1@news.povray.org>
On 02/16/2014 09:24 AM, Le_Forgeron wrote:
> Le 16/02/2014 12:33, James Holsenback nous fit lire :
>
>> yep ... that's the obvious answer ;-)
>>
>> tried all kinds of various transformations ... this image has non uv
>> mapped scale at 1 and uv mapped scale at 0.05 (~ 1/19 )
>>
>>
>
> Ok, time to post the whole scene. I'm out of idea.
>

me too (out of ideas) ... posted scene file over in p.b.scene-files

good luck!


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From: Le Forgeron
Subject: Re: uv_mapping
Date: 16 Feb 2014 14:15:16
Message: <53010e44$1@news.povray.org>
Le 16/02/2014 20:08, James Holsenback nous fit lire :
> On 02/16/2014 09:24 AM, Le_Forgeron wrote:
>> Le 16/02/2014 12:33, James Holsenback nous fit lire :
>>
>>> yep ... that's the obvious answer ;-)
>>>
>>> tried all kinds of various transformations ... this image has non uv
>>> mapped scale at 1 and uv mapped scale at 0.05 (~ 1/19 )
>>>
>>>
>>
>> Ok, time to post the whole scene. I'm out of idea.
>>
> 
> me too (out of ideas) ... posted scene file over in p.b.scene-files
> 
> good luck!

Found. see the answer there.


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