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Preview scaling problems – Really need help with this.
I’m hoping someone could help me with this. It’s regarding the preview on my computer monitor.
Sometimes on playback the preview seems to ‘change’ sporadically. What’s it’s doing is firstly it plays back fine and then it ‘cuts’ into a scaled version of the image.
For example.
A wide shot of a landscape and a boat in the foreground. First you see the whole shot then all of a sudden you see just the boat as if there’s an actual cut in the footage and the cameraman has stopped recording the wide shot, zoomed up to the boat and started again.
It also does this when I highlight an event and hold ALT while I drag left right on the clip to get the split screen in/out view. Inside the view the preview can sometimes scale itself to whatever size it feels like.
I can’t edit like this because I don’t know if the footage has cuts in it or if the preview window is re-scaling to whatever it wants to. This is very annoying. It does it a lot.
Now, I have my preview set to ‘preview quality’ and AUTO and the last version I’ve seen that this problem HASN’T happened is Vegas 6.0b.
I was happily using 6.0b for ages and when I tried 6.0c I started to see the above issue so I quickly went back to 6.0b and have been happy since.
Now, I installed Windows Vista and have no choice but to use Vegas 7.0e which I thought by now this preview problem would be fixed but it isn’t.
Has anyone heard of or have experienced anything like what I’m describing?
-Frankie
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7 Replies
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I haven’t seen this but would take a stab at your video card, drivers, etc. Rolling and slip editing are common practices, and I’m reasonably confident other users would report this as a problem. It would be annoying.
I’m not sure what you mean by “can’t see if the footage has cuts?” If you are rolling/slipping an event, then you’re only seeing the in/out points of that event (clip). Therefore, there can’t be any cuts in that event.
What I see when I slip/ALT edit, is that the screen splits in half at whatever resolution I’m previewing, with the sides squeezed so that the entire frame content is visible, but in half-screen on each side for the in/out points. If you’re seeing anything different, I’d be looking at vid card, drivers, RAM, CPU speed as potential culprits.
Be aware that at this time, Vista is not supported.Douglas Spotted Eagle
VASST
Aerial Camera -
>I haven’t seen this but would take a stab at your video card, >drivers, >etc. Rolling and slip editing are common practices, and I’m >reasonably >confident other users would report this as a problem. It >would be >annoying.
Hi Douglas, thanks for your response. My video card is the nVidia 6600 and the drivers are all up to date. I have other friends using the same card with no issues. If nobody else has reported any problems such as what I’m describing then I guess it’s just me 🙁
>I’m not sure what you mean by “can’t see if the footage has cuts?” If >you are rolling/slipping an event, then you’re only seeing the in/out >points of that event (clip).
What I meant was, because the preview is scaling at irregular intervals as I’m slip trimming, it makes the preview look like there’s cuts. eg: watcing a wide shot then Vegas preview scales and shows a closer view but at full screen. It just looks like a simple cut. wide shot to midshot of the same scene, filling the preview window.
It’s as if you’re using the pan crop tool with keyframes and setting them so that at 1 second you see the full screen then at 1 second and 1 frame you grab the top corner in pan crop and drag towards the center about half way. Then at 2 seconds, add a keyframe and at 2 seconds and one frame go full screen again. This is the best way I can describe what I’m seeing. Notice how it would appear like a camera cut?
The window itself isn’t scaling, that’s always the same size. The image inside it is scaling.
When the problem occurs it does it like a ‘cut’. It doesn’t always scale in the middle either, sometimes you see the top quarter of the full screen AS a full screen image.
Could it have anything to do with me using dual monitors? I might try putting the preview window on monitor 1 and see what happens.
-Frankie
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I tried putting the preview window on monitor 1 and the result is the same.
I did however notice something else. This scaling problem seems to happen on a dissolve point between 2 clips.
I have a series of 4 second clips with a 1 second dissolve on the timeline.
The point where the dissolve starts is the point that the preview goes bonkers.
-Frankie
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Sorry everyone for all these posts 🙁
After looking at this problem further I discovered that it happens only at transition points with any transition for the duration of the transition on the first clip only not the second.
So to clarify.
While playing back footage, all is well until it reaches the transition, then at the first frame of the transition the image on clip 1 is scaled and you see the ‘zoomed in’ version for the duration of the transition. Clip 2 is always fine at that point but if clip 2 has a transition to clip 3, then clip 2 will have the problem and so on.
I can play back the transition point 5 times and this problem will only be visible n 2 or 3 of those 5 playbacks.
Does it on slip trims too.
My fiend also has the same problem and is using the same card as me, the NVIDIA 6600.
Before I go out and buy a new card, I thought I’d post this here to see if someone knows of any settings I can look into?
-Frankie
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Hi!
I must admit that i do have the same problem (same GraphicCard)
I adjust a small video to a 16/9 format using th FX-scaling.
Sometimes, after saving, closing, opening, it seems that vegas forgot everything and the video is small again. Sometimes it remembers a bit out of the cache and then its flickering… large, small, large…
btw i have another alphalayering problem discussed in another thread (i am posting now).
Is it the graphicaccelerator?
Geforce 6600GT 128MB _ 93.71 Forceware _ 3GB Ram _ Athlon 64 X2 Dual 4400+ -
Hi,
First I’d think of the driver – this is the most easy to change.
From ftp://download.nvidia.com you can download any driver that was available in the past.
Believe or not, the newest drivers all not always the best…
For me (with e geforce mx440) the version 78.05 works the best.Make experiments with different driver versions, and keep the best.
Or if all of them fail, you can drop that card 😉By(t)e
K.L.
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oops,
if you look at the ftp site, go for the “windows” directory.
There are the drivers you need.By(t)e
K.L.
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