Whenn adding "uv_mapping" to a pigment in a function which is used for a 
pigment in a texture it crashes beta13 (linux)
-> Speicherzugriffsfehler (english: segmentation fault?)


// ----- crashes -----
#declare f_png = function {
   pigment {
     uv_mapping      // problem here?
     image_map {png "plasma2.png"
       map_type 0
       interpolate 2
     }
   }
}

#declare T_tex =
   texture {
     pigment {
       function { f_png (x,y,z).red }
     }
   }

box {
   <0, 0, 0> <1, 1, 1>
   texture {
     T_tex
   }
   translate <0, 0, 1>
}



// ----- works -----
#declare f_png = function {
   pigment {
     image_map {png "plasma2.png"
       map_type 0
       interpolate 2
     }
   }
}

#declare T_tex =
   texture {
     pigment {
       uv_mapping
       function { f_png (x,y,z).red }
     }
   }

box {
   <0, 0, 0> <1, 1, 1>
   texture {
     T_tex
   }
   translate <0, 0, 1>
}

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In article <3C9### [at] webde> , "Sebastian H." <seb### [at] webde> wrote:

> Whenn adding "uv_mapping" to a pigment in a function which is used for a
> pigment in a texture it crashes beta13 (linux)

Please try this again in beta 14 tomorrow.

    Thorsten

____________________________________________________
Thorsten Froehlich
e-mail: mac### [at] povrayorg

I am a member of the POV-Ray Team.
Visit POV-Ray on the web: http://mac.povray.org

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Sebastian H. <seb### [at] webde> wrote:
> -> Speicherzugriffsfehler (english: segmentation fault?)

  I really like the sound of that word. It really gives the impression that
something bad has happened... :)
  (No, I don't know any German.)

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -

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Warp wrote:
> Sebastian H. <seb### [at] webde> wrote:
> 
>>-> Speicherzugriffsfehler (english: segmentation fault?)
> 
> 
>   I really like the sound of that word. It really gives the impression that
> something bad has happened... :)
>   (No, I don't know any German.)
> 

:-)

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> Please try this again in beta 14 tomorrow.
> 

Jep, works now!

Sebastian H.

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In article <3c9e32c6@news.povray.org> , Warp <war### [at] tagpovrayorg>  wrote:

>   I really like the sound of that word. It really gives the impression that
> something bad has happened... :)
>   (No, I don't know any German.)

It is a more precise term than what segmentation fault also it means the same
:-)  In German nouns can be composed, so it is actually three words:

Speicher - zugriff(s) - fehler

memory   - access     - fault


    Thorsten


____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

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Sebastian H. wrote:
>> Please try this again in beta 14 tomorrow.
>>
> 
> Jep, works now!
> 
> Sebastian H.
> 

Oh no, didn't render full image.
It still crashes but later
and again with a

<drawverybigwithunderlinebecauseextrembadmessage>

SPEICHERZUGRIFFSFEHLER!!!!!!!

</drawverybigwithunderlinebecauseextrembadmessage>

:-)

Sebastian H.

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In article <3C9### [at] webde> , "Sebastian H." <seb### [at] webde> wrote:

> #declare f_png = function {
>    pigment {
>      uv_mapping      // problem here?
>      image_map {png "plasma2.png"
>        map_type 0
>        interpolate 2
>      }
>    }
> }

I am not sure what you are trying to do here with uv_mapping inside the
function.  I thought what you were seeing was related to another function
problem in beta 13 ("strange recursion error" thread in this group) and did
not look at your example, but it turns out that of course "uv_mapping" doesn't
even make sense inside functions.  I have fixed the parser and it will no
longer accept it in the next beta.

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

Post a reply to this message

> I am not sure what you are trying to do here with uv_mapping inside the
> function.  I thought what you were seeing was related to another function
> problem in beta 13 ("strange recursion error" thread in this group) and did
> not look at your example, but it turns out that of course "uv_mapping" doesn't
> even make sense inside functions.  I have fixed the parser and it will no
> longer accept it in the next beta.
> 
>     Thorsten

This example was the shortened version of a try to make a uv_mapped 
layered textures (with different finishes and bumps for each layer) for 
a mesh2 object (which works now:-) ).

Since it was my very first try with functions some results were a bit 
strange like the one I posted.
Like you said it doesn't make too much sense and I don't use this 
construction at all.
But when I was playing around I was just wondering that this combination 
completely crashes pov without any warning.

regards (from Bremen, where the sun is shining :-) )
Sebastian H.

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On Mon, 25 Mar 2002 19:14:47 +0100, "Thorsten Froehlich"
<tho### [at] trfde> wrote:

>In German nouns can be composed...

Pardon my spelling (I don't know German), but here's my favourite:



Love that language :)


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

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