Video FX

TVeith wrote on 7/24/2002, 10:56 PM

Hi all,

I've read the instructions, but I seem to be missing something here.

To test, I've added one clip to the timeline. I am trying to add a Video FX (Black and White) to a small portion of the clip. Everytime I drop the FX on the clip, the entire clip goes black and white and I can't seem to find any settings to adjust it.

Can someone tell me how to set an FX for only a small portion of a clip instead of having the FX take up the entire clip sequence?

Thanks

TVeith

Comments

BillyBoy wrote on 7/24/2002, 11:48 PM

You need to break up your video into "events" then apply filters on a event by event basis if you only want to effect a range of frames. The easy way to breakup your video into events is place your cursor on the timeline where you want to apply a filter. Click. That should add a vertical line flashing between black and white. Now go to Edit, then select split. Your source file is now divided into two "events" each of which may be acted on seperately. Continue to split as needed. You should now see a clear indication on the timeline you split your source file. The indication is two control boxes where none were before. If you don't see them, then click on the timeline again and try to split again.

Note that before you apply any filters the two control boxes at the end of each event are gray in color. The bottom controls the string of filters you apply. Once you drop a filter on a event and let go this box turns green. To effect a change of any filter in a single event click on the green square which will open the FX filter window.

At the bottom of the window you'll see the key frame generator control. For most things be sure the first button (sync cursor) is locked. The next button controls the filter effect at the first frame of the event. Other buttons allow you to add/remove other key frames. You may vary the filter effect in key frames. This is one of the most powerful features in Vegas. Feel free to experiment.

Understanding "events" and how to apply filters is mantatory if your want to learn how to use Vegas Video to its fullest.

TVeith wrote on 7/25/2002, 6:22 AM

Thanks very much for the tips, your advice was very helpful! :)

TVeith

TVeith wrote on 7/25/2002, 6:30 AM

Oh, one last question. Is there a way to make a filter fade out? For example, I want to place a lens flare on a certain part of the video. I'd like to have the lense flare fade in and fade out naturally rather than just appear and disappear.

Thanks again

TVeith

Chienworks wrote on 7/25/2002, 7:25 AM

TVeith: you can use keyframes to apply the filter to a small portion of an event without splitting it up. You can also use them to have the effect change over time. You could insert a keyframe at the beginning of the event with the effect set to 0 (or off), then another keyframe where you want the effect to start fading in, then a third keyframe where you want the effect to be full. Vegas will start applying the effect gradually at the second keyframe point and bring it up to full at the third point. Add as many points as you need throughout the event and set the effect's parameters at each point.

HPV wrote on 7/25/2002, 1:56 PM

For FX that don't keyframe from nothing to something (like the B&W fx), you'll want to opacity fade into or out of a copy of the event with no FX on another track.
If you need a how to/more info, holler.

Craig H.

Cheesehole wrote on 7/25/2002, 4:01 PM

B&W has a built in keyframeable slider called 'blend' which controls the amount of effect to add. Sepia and Invert have this as well so there is no longer a need to duplicate your event and crossfade between the affected/unaffected versions.