Subject:
|
Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
|
Newsgroups:
|
lugnet.cad
|
Date:
|
Wed, 22 Aug 2007 09:21:27 GMT
|
Viewed:
|
4596 times
|
| |
|
|
In lugnet.cad, Travis Cobbs wrote:
> In lugnet.cad, Rob Ross wrote:
> > The "so-what" would be that I, as someone who will eventually read in these
> > files to create OpenGL renderings of them, would expect the matrices to be in
> > column-major order, unless explicitly stated otherwise.
>
> I think the original suggestion that we mention that it is in row-major format
> is valid. I agree that the fact that OpenGL (almost certainly one of the top
> two most used 3D APIs on the planet) uses column major format is a good reason
> to specify that LDraw uses row-major format, instead of just saying "standard".
> It just proves that "standard" in this context is ambiguous.
>
> --Travis
I came across the *current* LDraw file spec here:
http://www.ldraw.org/Article45.html
and the matrix example is using column-major ordering. So now I'm really
confused. Does the current spec use column-major, and the new spec is proposing
to change it? Or is the current spec wrong in using that column-major example?
If it's really a change in the spec, won't that break everyone's existing code?
Rob
|
|
Message has 1 Reply:
Message is in Reply To:
55 Messages in This Thread:
 
 
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
This Message and its Replies on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
