Announcing QtzRendang, a little utility app for rendering Quartz Compositions to movie files. I cobbled this together from example code for my own purposes, and since I couldn't find anything on the web. "My own purposes" typically involve rendering a loopy composition to a six or seven minute movie to make simple but effective videos for Cartoon Beats releases.
By the way, there is another app for this purpose developed by the Kineme crew - QuartzCrystal - which supports spatial and temporal oversampling to reduce temporal and visual jagginess. At US$18 this is a great little app, but as I'm a bit of a nerd and a cheapskate, and there wasn't an open source solution, I decided it was worth writing QtzRendang.
CoGe is another great project on Google code. It's an open source visualisation/VJ mixer/live sequencer.
Back to QtzRendang
Drag & drop a composition, specify frame resolution, duration, and frame rate & output filename. Optionally tweak composition parameters, then click render.
Why is it called QtzRendang? Well it renders .qtz files to movies, and the instant noodles I had that week were rendang flavour. Rendang is a slow-cooked Indonesian dish which seems like it would be pretty yum. I've never had it.
Any questions about the software itself please feel free to ask in the comments.
Posts
8 comments:
I assume this is osx 10.6 only. Be good if you specified that on the Google code page.
Good point - done. (Yes - this requires 10.6.)
Any chance of a 10.5/10.6 release?
Are the obstacles to making this 10.5 compatible great?
No plans to get this running on 10.5 yet. I know that the code to run the render on a background thread requires 10.6, and there may be some other things.
In principle it may be feasible to port to 10.5 - so I would suggest downloading the code and giving it a go.
If you get somewhere with this, let me know, so we can get the changes committed...
runs on 10.7 too
Cheers for checking that Cybero - did not anticipate any issue but haven't checked myself!
Currently working on simple yet powerful qtz-powered visuals software, watch this space!
Now that 10.7.4 is out as an Update have found that qtzrendang runs danged slow •~
I am surprised that 10.7.4 makes any difference to the performance. Thanks for letting me know - I'll take a look soon (of course feel free to check out the code yourself).
This also might be the push I need to write a cleaner better faster app for the Mac App Store!
PS cybero - do you use QtzRendang much? I would love to know what you use it for.
Post a Comment