using 3DS format for loading is probably faster than say VRML ... but once
it gets loaded
into memory their should be no difference in terms of memory usage and
speed...right?
So, the best thing to do to increase in-program speed is to have a smaller
3D object that
takes up less memory..??
Mario
Mariusz Zaczek
NASA - Johnson Space Center
Automated Vehicles and Orbit Analysis / DM35
Flight Design and Dynamics Division
Mission Operations Directorate
Bldg: 30A Room: 3048B
Disclaimer: "The opinions, observations and comments expressed in my email
are strictly my own and do not necessarily reflect those
of NASA."
-----Original Message-----
From: John Wright [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 02, 2002 1:26 PM
To: [EMAIL PROTECTED]
Subject: Re: [JAVA3D] OBJ x VRML :: When I should use this or that one?
The issue of speed of loading hasn't been addressed. If you want faster
loading models then a format like 3DS that uses binary values rather
than text (that obviously needs to be parsed) can be faster to load.
- John Wright
Starfire Research
Justin Couch wrote:
>
> Alessandro Borges wrote:
>
> > > 1) Does your application only need geometry ?
> > For some simple 3D objects, yes.
> > Hierarchical structure within a complex 3D object is desirable, but not
> > mandatory. Material and Texture support is needed .
>
> For simple geometry, any format is fine. OBJ, DXF, VRML etc.
>
> Heirarchical structures I'm not familiar with what other file formats
> will give you. VRML is fine for that.
>
> Material and texture, almost all file formats except DXF are suitable.
>
> > > 2) Does it need animations?
> > No. The application will add animation behaviors as needed.
>
> One less need for VRML then.
>
> > 3)Do you want to support your own animation runtime engine or let
someone
> > else do it for you?
> > I will build my own animation runtime engine.
>
> Probably OBJ will be sufficient for you then.
>
> --
> Justin Couch http://www.vlc.com.au/~justin/
> Java Architect & Bit Twiddler http://www.yumetech.com/
> Author, Java 3D FAQ Maintainer http://www.j3d.org/
> -------------------------------------------------------------------
> "Humanism is dead. Animals think, feel; so do machines now.
> Neither man nor woman is the measure of all things. Every organism
> processes data according to its domain, its environment; you, with
> all your brains, would be useless in a mouse's universe..."
> - Greg Bear, Slant
> -------------------------------------------------------------------
>
>
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