POV-Ray : Newsgroups : povray.newusers : Sometimes Image map is more appropriate then texture? Server Time
28 Nov 2024 22:44:41 EST (-0500)
  Sometimes Image map is more appropriate then texture? (Message 1 to 5 of 5)  
From: Skelter
Subject: Sometimes Image map is more appropriate then texture?
Date: 30 Jul 1999 10:27:38
Message: <37a1b65a@news.povray.org>
I'm working on the hull for a boat.  I don't think "carving" the hull from a
texture is appropriate, in this case, as the boat would be made of planks of
wood or plates of metal.  This would probably best be done by wrapping an
image map and bump map on each side of the hull.  I don't want to model
individual planks.

Since I'm new at this, I thought I'd check with you knowledgable folks and
give you a chance to set me straight.

-s


Post a reply to this message

From: Ken
Subject: Re: Sometimes Image map is more appropriate then texture?
Date: 30 Jul 1999 10:39:01
Message: <37A1B863.B71F5DF5@pacbell.net>
Skelter wrote:
> 
> I'm working on the hull for a boat.  I don't think "carving" the hull from a
> texture is appropriate, in this case, as the boat would be made of planks of
> wood or plates of metal.  This would probably best be done by wrapping an
> image map and bump map on each side of the hull.  I don't want to model
> individual planks.
> 
> Since I'm new at this, I thought I'd check with you knowledgable folks and
> give you a chance to set me straight.
> 
> -s

  You open yourself to attacks by purists and wild fanatics alike. On the one
hand making the individual planks adds an extra step of realism that is hard
to mimic with textural methods. On the other textural methods are often faster
and easier to apply and can give satisfactory results if done properly. I
would say evaluate how close to the camera is the ship/boat going to be ant
decide from there. Up close you may wish to go with the physical modelling
process. If it is to be seen from a distance such as out on a lake a ways
then you can probably get away with the textural method. Think about which
method is going to give you the most satisfaction when it is done and let
your own conscience be your guide.

  See my links collection in the announcement group for a massive list of
of online texture resources if you decide to go with image maps. There are
some excellent wood plank textures at the sites listed in that collection.

-- 
Ken Tyler
  
mailto://tylereng@pacbell.net
http://home.pacbell.net/tylereng/links.htm


Post a reply to this message

From: Skelter
Subject: Re: Sometimes Image map is more appropriate then texture?
Date: 30 Jul 1999 11:36:45
Message: <37a1c68d@news.povray.org>
Great.  You gave me an intelligent, balanced, non-furious response.  Well,
that's the thing...I may end up doing both, depending on how things go.

It sure is going to be painful modelling each plate of the metal hull, but
for up-close shots, that may be the best way.

Thanks for the texture links.  I'm looking for a good Jules Vernes 20,000
leagues nautilus hull metal plating texture.


Ken wrote in message <37A1B863.B71F5DF5@pacbell.net>...
>
>
>Skelter wrote:
>>
>> I'm working on the hull for a boat.  I don't think "carving" the hull
from a
>> texture is appropriate, in this case, as the boat would be made of planks
of
>> wood or plates of metal.  This would probably best be done by wrapping an
>> image map and bump map on each side of the hull.  I don't want to model
>> individual planks.
>>
>> Since I'm new at this, I thought I'd check with you knowledgable folks
and
>> give you a chance to set me straight.
>>
>> -s
>
>  You open yourself to attacks by purists and wild fanatics alike. On the
one
>hand making the individual planks adds an extra step of realism that is
hard
>to mimic with textural methods. On the other textural methods are often
faster
>and easier to apply and can give satisfactory results if done properly. I
>would say evaluate how close to the camera is the ship/boat going to be ant
>decide from there. Up close you may wish to go with the physical modelling
>process. If it is to be seen from a distance such as out on a lake a ways
>then you can probably get away with the textural method. Think about which
>method is going to give you the most satisfaction when it is done and let
>your own conscience be your guide.
>
>  See my links collection in the announcement group for a massive list of
>of online texture resources if you decide to go with image maps. There are
>some excellent wood plank textures at the sites listed in that collection.
>
>--
>Ken Tyler
>
>mailto://tylereng@pacbell.net
>http://home.pacbell.net/tylereng/links.htm


Post a reply to this message

From: Peter Popov
Subject: Re: Sometimes Image map is more appropriate then texture?
Date: 30 Jul 1999 17:44:15
Message: <37a2da01.7592394@204.213.191.228>
On Fri, 30 Jul 1999 10:38:02 -0500, "Skelter"
<ske### [at] nospamfull-mooncom> wrote:

>Great.  You gave me an intelligent, balanced, non-furious response.  

Doesn't he always?


Peter Popov
ICQ: 15002700


Post a reply to this message

From: Steve
Subject: Re: Sometimes Image map is more appropriate then texture?
Date: 30 Jul 1999 18:50:49
Message: <37A21C64.EDA7A5E4@ndirect.co.uk>
Skelter

I don't know if you've investigated macros and while loops yet,
they can take a lot of the drugery out of making multiple similar
objects. 

Eg:

#declare OnePlank =
difference{
               cylinder{<0,0,0>, <0,0.25,0>,1
                           scale <1.25,1,1>
                           texture{some sorta wood/metal}
                          }
              }


#declare BoatHull =
union{
        
         #local CountScale = 0.05;
         #local PlankScale = 0.5;        
         #local PlankPlace = 0.25;

         #while(PlankScale<2)
             object{
                       OnePlank 
                       scale<PlankScale,1,PlankScale>
                       translate <0,PlankPlace,0>
                      }
              
             #local PlankPlace = PlankPlace+0.25;
             #local PlankScale=PlankScale+CountScale;
       
       #end                 

object{BoatHull}

Something like that, hope it helps. 




Skelter wrote:
> 
> Great.  You gave me an intelligent, balanced, non-furious response.  Well,
> that's the thing...I may end up doing both, depending on how things go.
> 
> It sure is going to be painful modelling each plate of the metal hull, but
> for up-close shots, that may be the best way.
> 
> Thanks for the texture links.  I'm looking for a good Jules Vernes 20,000
> leagues nautilus hull metal plating texture.
> 
> Ken wrote in message <37A1B863.B71F5DF5@pacbell.net>...
> >
> >
> >Skelter wrote:
> >>
> >> I'm working on the hull for a boat.  I don't think "carving" the hull
> from a
> >> texture is appropriate, in this case, as the boat would be made of planks
> of
> >> wood or plates of metal.  This would probably best be done by wrapping an
> >> image map and bump map on each side of the hull.  I don't want to model
> >> individual planks.
> >>
> >> Since I'm new at this, I thought I'd check with you knowledgable folks
> and
> >> give you a chance to set me straight.
> >>
> >> -s
> >
> >  You open yourself to attacks by purists and wild fanatics alike. On the
> one
> >hand making the individual planks adds an extra step of realism that is
> hard
> >to mimic with textural methods. On the other textural methods are often
> faster
> >and easier to apply and can give satisfactory results if done properly. I
> >would say evaluate how close to the camera is the ship/boat going to be ant
> >decide from there. Up close you may wish to go with the physical modelling
> >process. If it is to be seen from a distance such as out on a lake a ways
> >then you can probably get away with the textural method. Think about which
> >method is going to give you the most satisfaction when it is done and let
> >your own conscience be your guide.
> >
> >  See my links collection in the announcement group for a massive list of
> >of online texture resources if you decide to go with image maps. There are
> >some excellent wood plank textures at the sites listed in that collection.
> >
> >--
> >Ken Tyler
> >
> >mailto://tylereng@pacbell.net
> >http://home.pacbell.net/tylereng/links.htm

-- 
Cheers
Steve

------------------------------------------------------------------------------------------------
%HAV-A-NICEDAY Error reading file mailto:sjl### [at] ndirectcouk


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.