From luismbo at gmail.com  Fri Apr  2 21:15:48 2010
From: luismbo at gmail.com (=?ISO-8859-1?Q?Lu=EDs_Oliveira?=)
Date: Fri, 2 Apr 2010 22:15:48 +0100
Subject: [cl-opengl-devel] OpenGL 3.3/4.0 bindings
In-Reply-To: <77cb99c01003141244u6974d68dy289293451dbbdb4a@mail.gmail.com>
References: <77cb99c01003131421g5b73b7ffs9bd05972cc873b46@mail.gmail.com> 
	<391f79581003131628q6d006c45h2efea5bbd069ba4e@mail.gmail.com> 
	<77cb99c01003141244u6974d68dy289293451dbbdb4a@mail.gmail.com>
Message-ID: <n2m391f79581004021415za9aa93c5sbeafe2b92945baa1@mail.gmail.com>

On Sun, Mar 14, 2010 at 7:44 PM, Bart Botta <00003b at gmail.com> wrote:
> OK with me, though if people actually started using the issue tracker
> very much, I'd probably want to move it somewhere better.

Done. <http://common-lisp.net/project/cl-opengl/> now points to a
bunch of github locations which makes your tree the official one, I
suppose. You should get a c-l.net account. :-)

-- 
Lu?s Oliveira
http://r42.eu/~luis/



From dabukun at gmail.com  Wed Apr  7 23:18:14 2010
From: dabukun at gmail.com (David Davis)
Date: Wed, 7 Apr 2010 23:18:14 +0000
Subject: [cl-opengl-devel] gluProject and gluUnProject
Message-ID: <v2l836b65a51004071618gf9498626hdcb1d0292736faab@mail.gmail.com>

I want to use gluUnProject in order to do things on-screen when the user
clicks with the mouse.  I'm using Ubuntu, and it seems that the opengl
libraries that come with it do not come with the glu(Un)Project methods
defined.  However, after poking around a bit in the source, it looks pretty
straight-forward to create the lisp methods from the c methods, so I added
the following to my glu.lisp file:

(def-foreign-routine ("gluProject" project) void
  (obj-x gl:double)
  (obj-y gl:double)
  (obj-z gl:double)
  (modelview (* gl:double)
  (projection (* gl:double)
  (viewport (* gl:int))
  (win-x (* gl:double)
  (win-y (* gl:double)
  (win-z (* gl:double)))))))

(def-foreign-routine ("gluUnProject" unproject) void
  (win-x gl:double)
  (win-y gl:double)
  (win-z gl:double)
  (modelview (* gl:double)
  (projection (* gl:double)
  (viewport (* gl:int))
  (obj-x (* gl:double)
  (obj-y (* gl:double)
  (obj-z (* gl:double)))))))

These are purely based off of looking around at how the other glu methods
were defined.

Are these definitions correct?  I'm unable to really try them out because I
don't understand how to pass double pointers to these methods.  I'm just
getting started with CL, and loving it so far, but the application I'm
currently working on has definitely hit a roadblock.

Can somone point me in the right direction as far as whether how I'm
defining these methods is correct, and if so, how I pass pointer-style vars
to the method calls to get the results?

Thanks!
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From luismbo at gmail.com  Fri Apr  9 07:38:47 2010
From: luismbo at gmail.com (=?ISO-8859-1?Q?Lu=EDs_Oliveira?=)
Date: Fri, 9 Apr 2010 08:38:47 +0100
Subject: [cl-opengl-devel] gluProject and gluUnProject
In-Reply-To: <v2l836b65a51004071618gf9498626hdcb1d0292736faab@mail.gmail.com>
References: <v2l836b65a51004071618gf9498626hdcb1d0292736faab@mail.gmail.com>
Message-ID: <q2l391f79581004090038pd5fc63feh19f5bc8e88203c1c@mail.gmail.com>

On Thu, Apr 8, 2010 at 12:18 AM, David Davis <dabukun at gmail.com> wrote:
> I want to use gluUnProject in order to do things on-screen when the user
> clicks with the mouse.? I'm using Ubuntu, and it seems that the opengl
> libraries that come with it do not come with the glu(Un)Project methods
> defined.

They're defined in the CL-GLU system, which you need to load.

HTH,

-- 
Lu?s Oliveira
http://r42.eu/~luis/



From dabukun at gmail.com  Fri Apr  9 12:56:16 2010
From: dabukun at gmail.com (David Davis)
Date: Fri, 09 Apr 2010 08:56:16 -0400
Subject: [cl-opengl-devel] gluProject and gluUnProject
In-Reply-To: <q2l391f79581004090038pd5fc63feh19f5bc8e88203c1c@mail.gmail.com>
References: <v2l836b65a51004071618gf9498626hdcb1d0292736faab@mail.gmail.com>
	<q2l391f79581004090038pd5fc63feh19f5bc8e88203c1c@mail.gmail.com>
Message-ID: <4BBF23F0.2030306@gmail.com>

Lu?s Oliveira wrote:
> On Thu, Apr 8, 2010 at 12:18 AM, David Davis <dabukun at gmail.com> wrote:
>   
>> I want to use gluUnProject in order to do things on-screen when the user
>> clicks with the mouse.  I'm using Ubuntu, and it seems that the opengl
>> libraries that come with it do not come with the glu(Un)Project methods
>> defined.
>>     
>
> They're defined in the CL-GLU system, which you need to load.
>
> HTH,
>
>   
Hi Lu?s,

A 'egrep "[pP]roject" 
/usr/share/common-lisp/source/opengl/opengl/glu.lisp' returns nothing 
for me.  Maybe the CL opengl code in Ubuntu 9.10 is way out of date?

-Dave
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From dabukun at gmail.com  Fri Apr  9 13:43:09 2010
From: dabukun at gmail.com (David Davis)
Date: Fri, 09 Apr 2010 09:43:09 -0400
Subject: [cl-opengl-devel] gluProject and gluUnProject
In-Reply-To: <p2w6e831e4e1004090638m77f9a016nec942c73ce8b59ec@mail.gmail.com>
References: <v2l836b65a51004071618gf9498626hdcb1d0292736faab@mail.gmail.com>	
	<q2l391f79581004090038pd5fc63feh19f5bc8e88203c1c@mail.gmail.com>	
	<4BBF23F0.2030306@gmail.com>
	<p2w6e831e4e1004090638m77f9a016nec942c73ce8b59ec@mail.gmail.com>
Message-ID: <4BBF2EED.9020604@gmail.com>

Charlie McMackin wrote:
> DEF-FOREIGN-ROUTINE is not something the cl-opengl library uses. A
> cursory google lookup suggests it's something that's used in CL-SDL's
> opengl bindings however. I might be wrong but if it's for SDL you're
> looking, lispbuilder-sdl seems to have the greater 'mindshare' at the
> moment.. Though cl-opengl's project site is
> http://common-lisp.net/project/cl-opengl/ :)
> HTH
>
>   
Yeah, the example I was basing my code off of may have been from cl-sdl, 
since it used both SDL and OpenGL.  In the past, I've used SDL and 
OpenGL in conjunction, but I can probably get away with just using  
http://github.com/3b/cl-opengl without SDL as it looks like it 
implements gluProject and gluUnProject and I don't need SDL.

Thanks!

-Dave



From malcolm.reynolds at gmail.com  Fri Apr  9 13:24:15 2010
From: malcolm.reynolds at gmail.com (Malcolm Reynolds)
Date: Fri, 9 Apr 2010 14:24:15 +0100
Subject: [cl-opengl-devel] gluProject and gluUnProject
In-Reply-To: <4BBF23F0.2030306@gmail.com>
References: <v2l836b65a51004071618gf9498626hdcb1d0292736faab@mail.gmail.com> 
	<q2l391f79581004090038pd5fc63feh19f5bc8e88203c1c@mail.gmail.com> 
	<4BBF23F0.2030306@gmail.com>
Message-ID: <w2gdcb2fcee1004090624k79f7e1c6wc77af0045b69d63c@mail.gmail.com>

> A 'egrep "[pP]roject" /usr/share/common-lisp/source/opengl/opengl/glu.lisp'
> returns nothing for me.? Maybe the CL opengl code in Ubuntu 9.10 is way out
> of date?
>

Most likely. I'd recommend grabbing this code:
http://github.com/3b/cl-opengl - it's much more up to date.

Malcolm