[MacRuby-devel] OpenGL/GLUT Bridgesupport

[Jonathan Waddilove]

John,

Thank you again for offering the additional resources. It would be great if you wanted to add them to your idisc.

I did find a copy of your excellent presentation "Building Games with MacRuby and OpenGL", I must work through the slides again. Did you consider sharing your game tools? The presentation would make a very useful basis for a web tutorial on the MacRuby/openGL topic.

Like you, I'm new to both openGL and MacRuby - my interest is in visualisations rather than games. Right now I'm just greatfull that folks like you are willing to share their hard earned skills.

Best wishes, Jonathan

jonathan 'at' waddilove.net


On 22 Jan 2010, at 09:28, John Shea wrote:

> Jonathan,
> 
> I made some games in opengl this time last year (which now seem quite naive, as i did not know opengl or cocoa, so they could do with a good refactor).
> 
> I do not know if they work with the current version of macruby but they are on my idisk:
> 
> www.johnmacshea.org
> 
> navigate thru MacRuby / Game Related / Mine
> 
> Two 2D games CarNage8 and IcePhage9 are there.
> 
> They do screen setup, texture loading, writing text to opengl scenes (two different ways), canned explosions sometimes and particle effects for other explosions.
> 
> They do not use VAs or VBOs - but I do have some test projects which use VAs and VBOs, and a 3D test (which uses an exported c header file (from Cheetah 3D) holding vertex arrays).
> 
> Let me know if you are interested and I will dig them up and send them to you (only tested on MacRuby 0.4 however).
> 
> In that game related folder you will also see translations from other people's opengl work (also only tested on 0.4)
> 
> Cheers,
> J
> 
> 
> On Fri, 22 Jan 2010 09:32:57 +0100, Jonathan Waddilove <jonathan at waddilove.net> wrote:
> 
>> John,
>> 
>> Thank you for the response. GLUT won't be my first choice but I'm trying to follow the examples in the SuperBible.
>> 
>> I'm wondering what the plan is to support all the 'standard' frameworks in MacRuby is? Should I be able to process the GLUT.framework with gen_bridge_metadata?
>> 
>> Meanwhile I will look at providing my own wrapper class as you suggest. As you say this provides a flexible way of handling any framework that lacks bridge support.
>> 
>> Many thank, Jonathan
>> 
>> On 21 Jan 2010, at 20:56, John Shea wrote:
>> 
>>> Yes as far as I know bridge support does not support GLUT.
>>> 
>>> So you (obviously) have two other options other than gen_bridge_metadata (which I gave up on after a few tries) :
>>> 
>>> - don't use GLUT - use the equivalent (set of) non GLUT openGL calls
>>> - place the GLUT calls in an ObjC class - and call out to that class from MacRuby
>>> 
>>> you might find that the second option is quite quick - i found that for some openGL calls (but not all) that dispatching to my own bridge class which then called opengl functions was quicker than going through BridgeSupport.
>>> 
>>> There are other good reasons to have your own bridge class anyway - i imagine that BridgeSupport is always going to be lagging Cocoa a bit (eg Core Animation constants), and it might just be easier allocating OpenGL texture memory in ObjC (well I still use objC for that)
>>> 
>>> HTH,
>>> J
>>> 
>>> 
>>> On Jan 20, 2010, at 8:14 PM, Jonathan Waddilove wrote:
>>> 
>>>> Hi, I'm back to using MacRuby again and I'm confused about Bridge Support.
>>>> 
>>>> I have been using the excellent sojaster port of the Cocoa OpenGL example to help develop an OpenGL playpen. However, when I started using glut calls (glutBitmapCharacter, glutStrokeString, etc) I started to get problems.
>>>> 
>>>> It seems that the OpenGL glut.framework (10.6.2) doesn't include bridge support. I've tried using gen_bridge_metadata to add bridge support but without success.
>>>> 
>>>> Should glut work in MacRuby? How does one add BridgeSupport to the Apple shipped frameworks?
>>>> 
>>>> Sorry if I have missed some very obvious step.
>>>> 
>>>> regards and thanks,  Jonathan
>>>> 
>>>> _______________________________________________
>>>> MacRuby-devel mailing list
>>>> MacRuby-devel at lists.macosforge.org
>>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>>> 
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>> 
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regards,  Jonathan

Jonathan T Waddilove
email: jonathan at waddilove.net 
web: jonathan.waddilove.net

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