Re: [Plib-users] Identifying objects after loading an AC3D- modell
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Re: [Plib-users] Identifying objects after loading an AC3D- modell
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From: Michael W. <mic...@ti...> - 2004-04-23 17:47:05
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Dear Steve,
I have implemented what you said.
But when I debug the application the code never jumps in the function
ssgBranch *process_userdata ( char *data ) .
My ac-file looks folowing:.
AC3Db
MATERIAL "ac3dmat1" rgb 1 1 1 amb 0.2 0.2 0.2 emis 0 0 0 spec 0.5 0.5 0.5
shi 10 trans 0
MATERIAL "ac3dmat3" rgb 1 0 0 amb 0.2 0.2 0.2 emis 0 0 0 spec 0.5 0.5 0.5
shi 10 trans 0
MATERIAL "ac3dmat7" rgb 0.270588 0.52549 0.454902 amb 0.2 0.2 0.2 emis 0 0
0 spec 0.5 0.5 0.5 shi 10 trans 0
MATERIAL "ac3dmat9" rgb 0 0 1 amb 0.2 0.2 0.2 emis 0 0 0 spec 0.5 0.5 0.5
shi 10 trans 0
MATERIAL "ac3dmat13" rgb 0.533333 0.533333 0.533333 amb 0.2 0.2 0.2 emis 0
0 0 spec 0.5 0.5 0.5 shi 10 trans 0
OBJECT world
kids 2
OBJECT group
name "Race-Course"
loc 0.560112 0.0001 0.361112
kids 4
OBJECT poly
name "poly"
loc -0.240913 0 -0.282012
texture "ASSPHALT.bmp"
texrep 10 10
numvert 10
-0.1712 0 -0.1475
-0.0751 0 -0.1577
0.0686 0 -0.1675
0.2239 0 -0.1789
0.3284 0 -0.1871
0.3219 0 -0.2051
0.1242 0 -0.1854
-0.0899 0 -0.1724
-0.1744 0 -0.1613
-0.1744 0 -0.1613
numsurf 10
...............
................
I attach the .ac-file to this mail.
My intention is to seperate for example the
OBJECT group
name "Race-Course"
as a single object from the rest.
What can I do ?
Best regards
----- Original Message -----
From: "Steve Baker" <sjb...@ai...>
To: <pli...@li...>
Sent: Friday, March 26, 2004 3:35 AM
Subject: Re: [Plib-users] Identifying objects after loading an AC3D- modell
> Michael Wessels wrote:
>
> > in my '.ac' file I have the comment field "Tribune1". How can I tell the
> > PLIB loaders to call a callback function in the application when they
find
> > this comment field ?
>
> Write a function like this:
>
> ssgBranch *process_userdata ( char *data )
> {
> if ( data == NULL || data [ 0 ] == '\0' ) return NULL ;
>
> if ( strncmp ( "Tribune1", data, strlen ( "Tribune1" ) ) == 0 )
> {
> ssgBranch *b = new ssgBranch () ; /* ...or whatever you want this
node to be */
> /* whatever you need to do here */
> return b ;
> }
>
> return NULL ;
> }
>
>
> Sometime after ssgInit() but before you load your model:
>
> ssgLoaderOptions *loader_opts = new ssgLoaderOptions () ;
> loader_opts -> setCreateBranchCallback ( process_userdata ) ;
> /* You may wish to set other loader options here */
> ssgSetCurrentOptions ( loader_opts ) ;
>
> ...then just load your model in the usual way and whenever SSG
> needs to create a branch node, it'll call your 'process_userdata'
> function with the comment as the parameter. If this is a 'special'
> node, then you create the node and return it as the result. If it's
> not special then just return NULL and the loader will do something
> appropriate.
>
> ---------------------------- Steve Baker -------------------------
> HomeEmail: <sjb...@ai...> WorkEmail: <sj...@li...>
> HomePage : http://www.sjbaker.org
> Projects : http://plib.sf.net http://tuxaqfh.sf.net
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