Re: Open GL to QuickTime?
Re: Open GL to QuickTime?
- Subject: Re: Open GL to QuickTime?
- From: "Douglas A. Welton" <email@hidden>
- Date: Sat, 14 May 2005 21:17:25 -0400
Check out Technical Note TN2140 "Modernizing QuickTime Applications, part
1". see <http://developer.apple.com/technotes/tn2005/tn2140.html>
on 5/14/05 3:25 PM, Bob Estes at email@hidden wrote:
>
> On May 13, 2005, at 3:29 PM, Scott Thompson wrote:
>
>>
>> On May 13, 2005, at 11:02 AM, Bob Estes wrote:
>>
>>> I sent this to the mac-opengl list also. Apologies for the
>>> double-posting, but I thought this broader list might have more
>>> Quicktime experience.
>>>
>>> I'm wondering if there is a reasonably easy way (i.e., that doesn't
>>> require learning and integrating a bunch of Carbon routines into my
>>> Cocoa code) to programmatically make a Quicktime movie from my
>>> existing code for an animation that displays in an NSOpenGLView. If
>>> there is, I haven't been able to find it, but it seems there should
>>> be. Any pointers would be greatly appreciated.
>>
>> You shouldn't have to include a bunch of Carbon routines, but you may
>> have to include a bunch of QuickTime routines.
>
> Well, when I see GWorlds and such, I think Mac OS 7. I wish Apple would
> bring QuickTime into the Cocoa era.
>
>> In Tiger and later, you can limit your attention, by in large, to
>> Quartz and QuickTime.
>>
>> The trickiest part is that you need to get your OpenGL content into a
>> bitmap that you can work with. That probably involves either
>> rendering into an offscreen context of some sort (p-buffer?) or
>> retrieving your graphics from the OpenGL context somehow (readPixels?)
>>
>
> I think I've found out how to do that, though I haven't verified it.
>
> Thanks for the reply.
>
> Bob
>
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