Thanks, BUT I think that MegaPov 0.7 does not accept an image_map as one of the
colors in an object pattern.

TinCanMan wrote:

> > //start
> > pigment{
> >   object{
>
> oops.
>     box{<-1,-1,0><1,1,0>}  should be:
>     box{<-1,-1,0><1,1,z>} //where z is a distance that makes the box
> intersect with the front of the man
>
> //where to place the square emblem on the man's
> > body (make sure this object only intersects the front half
> >     //This box assumes the man us upright in the y direction and faces the
> z
> > direction
> >     pigment{Pigment_Outside_The_Emblem} //pigment outside box
> >     ,
> >     pigment{  //pigment inside box
> >       image_map{sys "EmblemImage" interpolate 4}
> >       translate<-.5,-.5,0>
> >       scale <2,2,1>
> >     }
> >   }
> > }
> > //end
> >
> > let me know if this of use or if you don't fully understand it.
> > g'luck
> >
> > -tgq
> >
> >
> >

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On Thu, 20 Jun 2002 21:12:49 -0500, Greg M. Johnson wrote:

> Thanks, BUT I think that MegaPov 0.7 does not accept an image_map as one
> of the colors in an object pattern.

Of course not, an image map isn't a color. Use pigments or textures.
Basically, anything you can do with checker, you can do with object.


-- 
Christopher James Huff <chr### [at] maccom>
POV-Ray TAG e-mail: <chr### [at] tagpovrayorg>
WWW: http://homepage.mac.com/chrishuff/

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I spent an hour trying it but it didn't work.
Can you give me an example of

pigment{object{foobar} ................

finish the line where one is a pigment{image_map{...  , please if you will.

Neither the html help for mega 0.7 nor my imagination could find a syntax mega
would accept.

Christopher James Huff wrote:

> On Thu, 20 Jun 2002 21:12:49 -0500, Greg M. Johnson wrote:
>
> > Thanks, BUT I think that MegaPov 0.7 does not accept an image_map as one
> > of the colors in an object pattern.
>
> Of course not, an image map isn't a color. Use pigments or textures.
> Basically, anything you can do with checker, you can do with object.
>
> --
> Christopher James Huff <chr### [at] maccom>
> POV-Ray TAG e-mail: <chr### [at] tagpovrayorg>
> WWW: http://homepage.mac.com/chrishuff/

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Greg M. Johnson <"gregj;-)56590\""@aol.c;-)om> wrote:
> Thanks, BUT I think that MegaPov 0.7 does not accept an image_map as one of the
> colors in an object pattern.

  A pattern does not take colors. color_maps do.

  Use the pattern with a pigment_map instead.


-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

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> Can you give me an example of
>
> pigment{object{foobar} ................
>
> finish the line where one is a pigment{image_map{...  , please if you
will.
>
> Neither the html help for mega 0.7 nor my imagination could find a syntax
mega
> would accept.

I don't know if the megaPOV syntax works the same, but this works in 3.5:
(you need to wrap both parts in pigment wrappers)

//start
box{<-100,0,-10><100,200,10>
  pigment{
    object{
      box{<-30,80,0><30,140,-20>}
      pigment{rgb 1},
      pigment{
        image_map{png "BB2.png" interpolate 4}
        scale 60
        translate <-30,80,0>
      }
    }
  }
}
//end


-tgq

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"Warp" <war### [at] tagpovrayorg> wrote in message
news:3d129a40@news.povray.org...
> Greg M. Johnson <"gregj;-)56590\""@aol.c;-)om> wrote:
> > Thanks, BUT I think that MegaPov 0.7 does not accept an image_map as one
of the
> > colors in an object pattern.
>   A pattern does not take colors. color_maps do.
>

The object pattern IMHO does not take pigments either.   Colors were a last
ditch effort to make something work.

>
>   Use the pattern with a pigment_map instead.
>

Can you suggest a syntax for this?

Post a reply to this message

Greg M. Johnson <gregj:-)565### [at] aolcom> wrote:
>>   Use the pattern with a pigment_map instead.

> Can you suggest a syntax for this?

  I got confused. The object pattern cannot be used with a pigment_map
literally. However, it can take two pigments without problems:

camera { location -z*5 look_at 0 angle 35 }
light_source { -z*10, 1 }

#declare Object = sphere { 0,1 }
#declare Pigm1 = pigment { bozo color_map { [0 rgb 0][1 rgb 1] } }
#declare Pigm2 = pigment { granite color_map { [0 rgb x][1 rgb x+y] } }

plane
{ -z,0
  pigment
  { object
    { Object
      pigment { Pigm1 }
      pigment { Pigm2 }
    }
  }
}


-- 
#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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"Greg M. Johnson" <gregj:-)565### [at] aolcom> wrote in message
news:3d131911$1@news.povray.org...
> "Warp" <war### [at] tagpovrayorg> wrote in message
> news:3d129a40@news.povray.org...
> > Greg M. Johnson <"gregj;-)56590\""@aol.c;-)om> wrote:
> > > Thanks, BUT I think that MegaPov 0.7 does not accept an image_map as
one
> of the
> > > colors in an object pattern.
> >   A pattern does not take colors. color_maps do.
> >
>
> The object pattern IMHO does not take pigments either.   Colors were a
last
> ditch effort to make something work.
>
> >
> >   Use the pattern with a pigment_map instead.
> >
>
> Can you suggest a syntax for this?


I do believe the object pattern (like checker, brick, hexagon, etc.) don't
use pigment_maps since they are blocked patterns without smooth transitions.
They expect a specific number of colours or pigment or whatever to work
(pigment_maps can be used within each of these pigments however), i.e.
checker expects 2, hexagon expects 3, object expects 2.  The trick in syntax
is that the elements need to be of the same type, either all colours, all
pigments, etc.  You can't mix n match.  Therefore if you wnat to use an
image map for one element and a colour for the other, since the image_map is
gonna need a pigment wrapper, you need to wrap the colour in a pigment
wrapper as well.  At least the is how it appears to perform in 3.5.
See my previous post for an example that works in 3.5, I can post the source
and image if so required.

-tgq

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On Fri, 21 Jun 2002 08:15:19 -0500, Greg M. Johnson wrote:

> The object pattern IMHO does not take pigments either.   Colors were a
> last ditch effort to make something work.

That is not true. It worked the first time I compiled it, and it worked
for everything automatically, there is no need to write special code to
handle each case...this is how it is for any pattern, there was no "last
ditch effort". The syntax is analogous to that for any other block pattern:

texture {object {OBJECT texture {...}, texture {...}}

pigment {object {OBJECT pigment {...}, pigment {...}}

There is even a demo file demonstrating this: object_pattern.pov.


-- 
Christopher James Huff <chr### [at] maccom>
POV-Ray TAG e-mail: <chr### [at] tagpovrayorg>
WWW: http://homepage.mac.com/chrishuff/

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"Christopher James Huff" <chr### [at] maccom> wrote in message
news:pan### [at] maccom...
> That is not true. It worked the first time I compiled it,

Your code is quite logical. It's what 0.7a IIRC refused. I'll try it in 0.7a
again "later"...

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