VideoStudio10:using logarithmic interpolation (pan + zoom)

SteveG · Post by **SteveG** » Thu May 11, 2006 8:25 pm

Couldn't find the answer to this one so I'm starting a new topic.
I'm experiencing problems using logarithmic interpolation with pan and zoom on bitmap images. Although this function seems to work when running through the timeline manually (using the mouse), upon playing the clip and/or project the software seems to trace the images linearly resulting in an undesired result. Any suggestions?

sjj1805 · Post by **sjj1805** » Fri May 12, 2006 10:16 am

Sorry but the way you've worded your query sounds rather complicated.
if you're asking how to do pan and zoom use Frame Based 'Field Order' on still images. Also when rendering to MPEG2 select options and ensure that anti-flicker is enabled.

Please update your profile with your system specifications.

Finally... welcome to the forum

SteveG · Post by **SteveG** » Fri May 12, 2006 7:31 pm

Thanks for the quick response . I'm using the trial version to see whether or not I want to purchase the full product but this particular issue is causing me reservations. I have tryed your suggestions above but to no avail.
What is happening is this: I'll put an image in the storyboard, click on "Pan and Zoom" and open the "Customize" window. There, I'll set destination points onto the image using the "timeline" slider (the "logarithmic interpolation" option is always checked). Then, using the mouse pointer I will manually run through the timeline to see if the pans and zooms are satisfactory.
However; when I actually play the clip or project (or save it in the form of a movie), instead of the camera-view smoothly translating over the image in the fashion that was indicated
by the Customize window, the motions are almost linear and at sharp angles. It's as if the program doesn't want to deal with the extra coordinates
involved in interpolating between the different points along the timeline.

(P.S. I did update my profile with my computer specs.)

sjj1805 · Post by **sjj1805** » Fri May 12, 2006 10:46 pm

Using VideoStudio10 in these screen shots though the procedure is the same in VS9.

Step 1 drag the pan and zoom filter onto your clip.

Step 2 click Customize

Step 3 Add any extra required keypoints by clicking the + key above the small timeline.
click each keypoint and then click one of the 'OXO' style anchor points

Is this the procedure you are following?

SteveG · Post by **SteveG** » Sat May 13, 2006 11:48 pm

Not exactly. The procedure that I'm acquainted with involves clicking "Pan and Zoom" (under the "Attributes" menu for a clip) and then "Customize." This method presents a picture tracking option labeled "logarithmic interpolation" which I suppose is a function for smoothing out the way in which the camera view tracks through the timeline. Thus far I've not been able to get this feature to work predictably.

sjj1805 · Post by **sjj1805** » Sun May 14, 2006 12:01 am

Ah yes I see it now, took me a while to find the method you were using.
I can only find one previous post on this subject
http://phpbb.ulead.com.tw/EN/viewtopic.php?t=13257
I guess most users, like me were doing it the other way where that option doesn't show up.

daniel · Post by **daniel** » Mon May 15, 2006 12:51 pm

you are both talking about a different filter

ssj1805 is discussing the video filter, while steveG talk about stills.
The filter is a little different.

sjj1805 · Post by **sjj1805** » Mon May 15, 2006 5:09 pm

The filter I mentioned works with stills.