ANN: Quartz Composition Filters in Revolution for OSX

Ben Rubinstein benr_mc at cogapp.com
Thu May 8 09:52:23 EDT 2008


On 8/5/08 03:44, Thomas McGrath III wrote:
> I too was looking into Core transitions which you know we have already 
> in Rev and was trying to make use of some of the built-in features of 
> OSX in Applescript. But no luck. It turns out that the Quartz Filters 
> are only available at this time through Xcode and Aperature, then I 
> found that Automator also has internal access to these filters. But they 
> are not scriptable. The applescript dictionaries for a lot of these new 
> system wide features is half done. There are references to future 
> scriptability for most of them. The difference was that Image effects 
> are apple scriptable and Core transitions are already in Rev but these 
> Quartz Composition Filters are not!!!
> 
> So, I thought why not just build the Automator workflows and turn them 
> into apps. Then call those apps from applescript from within Rev. But 
> still they won't work directly on an image while it is in Rev but rather 
> I am using rev to show the image, then save the image, then run the 
> automator filter on the image and lastly reload the image and offer the 
> user to save the new image file. It felt like cheating at first but then 
> I realized that in RR these images are editable and savable and usable 
> and this is not that different than doing all of this in an offscreen 
> buffer, not really. Also multiple filters can be applied to the same 
> image with very interesting results. Twirl will build upon Twirl over 
> and over. I have been playing with this all day, it is very addictive.
> 
> On to your issues: Two things, The first is you may have to apply the 
> filter twice, do it once to initiate the process and then apply it 
> again. This is just with the larger files because of the time the 
> Automator app takes to run and in Rev I only put in a four minute wait. 

Tom,

Many thanks for contributing this.  Could I also solicit your (and other) 
votes for:

http://quality.runrev.com/qacenter/show_bug.cgi?id=3055

Which is to extend the Core Image support currently in Rev, from Transitions 
only to include Effects.

Cheers,

- Ben




More information about the use-livecode mailing list