Re: Tracker zoom window
Re: Tracker zoom window
- Subject: Re: Tracker zoom window
- From: Micah Sharp <email@hidden>
- Date: Sun, 29 Apr 2007 21:28:53 -0700
Sweet! That should do it then. Thanks,
Micah
On Apr 29, 2007, at 9:24 PM, Paul Schneider wrote:
Hi, Micah,
in FCP 6, you can use the FxTemporalImageAPI to get frames as long
as your filter is loaded in the filter viewer (the Filters tab with
the controls). So I think this should be possible. In FCP 5, the
FxTemporalImageAPI is only available during render.
Since your custom UI is just an NSView, you can cause it to redraw
in the usual way: by sending the view a [setNeedsDisplay: YES]
message. You'll be asked to re-render when the current time
changes, as long as your effect is applied at the new time; you
could send your custom UI a redraw message from your render
method. Hopefully this will be enough to implement some good
feedback.
If you are triggering a redraw from your render method, you could
probably use the input image passed to your render method rather
than using the FxTemporalImageAPI (or the output image if you are a
generator). You might need to make a copy, since the images aren't
guaranteed to be valid after you render.
Hope that helps,
- Paul
On Apr 30, 2007, at 12:09 AM, Micah Sharp wrote:
Hey guys, sorry I missed out on the FxPlug meeting at NAB.
On one of my trips to the Motion and FCP pods I did notice
something interesting. I believe it was the Tracker generator in
Motion that had a small window in the effect parameter window that
zoomed in on an area where a tracker point was being placed. At
least I think it was something like this.
Is there any way we can implement this kind of UI in our FxPlugs?
Doing a zoom of a snap shot as Custom Ui should be straightforward
I think, but I believe the little window got updated whenever the
playhead moved as well, so I'm not sure how that works. That was
kind of neat and would be a cool parameter to have.
Thanks,
Micah Sharp
Red Giant Software
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