I have not yet evaluated the newest build of Moray (since it was
upgraded for Pov 3.1 support) and wonder if there has been any
ability added to model in Pov's default left handed coordinate
system. If not would this be a useful plug in ?
  It would probably be the easiest of all plug ins to write and
this is one of the reasons I have never given Moray more than just
a cursory examination. I doubt I will ever create 100% of my scenes
in a modeller environment only and the conversion between the two
coordinate systems is not only frustrating but is also keeping me
from using the modeller of choice by everyone to be used with
Pov-Ray.

  Have I missed a new option or is the right hand coordinate system
still the only one available at export ?

-- 
Ken Tyler

mailto://tylereng@pacbell.net

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Ken wrote in message <37169845.4251F8CF@pacbell.net>...
[snip]
>  Have I missed a new option or is the right hand coordinate system
>still the only one available at export ?


Yes.

With you idea for a plugin you mean an export plugin for POV-Ray that
exports all the Moray stuff, but converted to the left handed system, right?
That may be possible (but probably not trivial).

If you on the other hand mean modelling in Moray in the left handed system,
then I don't see a chance of this happening via a plugin...

But I agree: It is time for Moray to begin supporting the left handed system
as an option, at least at export.
I understand that it would require major rewriting to allow modelling in the
left-handed system, but as a simple additional export option, this shouldn't
be too hard.


Johannes.

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Johannes Hubert <jhu### [at] algonetse> wrote:
: But I agree: It is time for Moray to begin supporting the left handed system
: as an option, at least at export.

  Yes, I agree that it should support the left handed system as an option and
no, I disagree with that it should be at least at export. It should be in the
modeller itself.
  I'm very accustomed to the default left handed system in povray and I'm
always lost when I have to transform an object in moray by manually inserting
the values in the proper fields.

: I understand that it would require major rewriting

  I don't. Why it should be so hard to just swap y and z coordinates
together?

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

Post a reply to this message

Johannes Hubert wrote:
> 
> Ken wrote in message <37169845.4251F8CF@pacbell.net>...
> [snip]
> >  Have I missed a new option or is the right hand coordinate system
> >still the only one available at export ?
> 
> Yes.

Sigh !
 
> With you idea for a plugin you mean an export plugin for POV-Ray that
> exports all the Moray stuff, but converted to the left handed system, right?
> That may be possible (but probably not trivial).

One knows not unless they ask. It seemed like a simple idea at the time.


> But I agree: It is time for Moray to begin supporting the left handed system
> as an option, at least at export.
> I understand that it would require major rewriting to allow modelling in the
> left-handed system, but as a simple additional export option, this shouldn't
> be too hard.

> 
> Johannes.
  


  or maybe



  (Hope that translated correctly :)

-- 
Ken Tyler

mailto://tylereng@pacbell.net

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Nieminen Mika wrote in message <37172915.0@news.povray.org>...
[snip]
>
>> I understand that it would require major rewriting
>
>  I don't. Why it should be so hard to just swap y and z coordinates
>together?


Actually (as I guess you know) it would be a rotation by 90 degrees and a
mirroring (changing signs along one axis)...

Anyway: When I wrote "I understand that it would require major rewriting" I
was thinking back to some long ago ;-) post by Lutz where he wrote that he
once started with programming the povray default coordinates, and stopped
again, because it proved to be so difficult to include into moray's code (if
my vague recollection is correct).

As a programmer, I know that software very often contains pitfalls and
problems not apparent to anyone who is not involved with the development
himself, so I take this statement by Lutz (again: If I recall it correctly)
at face value and simply believe him, instead of going around and stating
"but it should be easy, so it *must* be easy, and I don't understand why it
shouldn't!".

Johannes.

Post a reply to this message

Ken wrote in message <37173254.34D441C8@pacbell.net>...
[snip]

>
>  or maybe
>

>
>  (Hope that translated correctly :)


Hmmm, not really :c)

I guess something like

oder


But I would have to see the original ;-)

Johannes.

Post a reply to this message

Johannes Hubert <jhu### [at] algonetse> wrote:
: Actually (as I guess you know) it would be a rotation by 90 degrees and a
: mirroring (changing signs along one axis)...

  I can do that rotation and mirroring of a point very easyly and very fast:

  tmp=point.y; point.y=point.z; point.z=tmp;

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

Post a reply to this message

Johannes Hubert wrote:
> 
> Ken wrote in message <37173254.34D441C8@pacbell.net>...
> [snip]

> >
> >  or maybe
> >

> >
> >  (Hope that translated correctly :)
> 
> Hmmm, not really :c)
> 
> I guess something like

> oder

> 
> But I would have to see the original ;-)
> 
> Johannes.

  The right hand knows not what the left hand is doing and in between
is only air.

OR

You can't get the from here you have to go the other way.


-- 
Ken Tyler

mailto://tylereng@pacbell.net

Post a reply to this message

Ken wrote in message <37178992.51B347DF@pacbell.net>...

>  The right hand knows not what the left hand is doing and in between
>is only air.


Then my first shot was closest ,-)

Johannes.

Post a reply to this message