245
The goal of the above example is to use video effects plug-ins to create a very high-contrast mask out of a video clip of fire. In the image on the left, a Brightness and Contrast plug-in is applied first and then a Black and White plug-in. In the image on the right, the Black and White plug-in was applied first, removing the color, and then the Brightness and Contrast plug-in was applied. The mask created by the second example is much cleaner, even though all of the settings of the two plug-ins are identical.
Processing plug-ins on events with panning or cropping
When you add a plug-in to a video event that has panning or cropping applied to it, you have the choice of processing the plug-in before or after the pan/crop. For example, you might want to apply a Radial Blur plug- in before the video is cropped and then a Noise plug-in is applied after the cropping is complete.
You can choose whether an effect is applied pre- or post-pan/crop in the keyframe controller at the bottom of the Video FX window. Click the Before/After Pan/Crop button to the left of the effect name to determine whether the effect is processed before ( 
) or after ( 
) Vegas software pans or crops the event.
Here, the Deform plug-in is 
applied before the pan/crop.
The Glow and Color Curves plug-ins are applied after the pan/crop.
Removing a plug-in
1.Click the FX button (
) on the event, track, Project Media window file, or Video Preview window that has the plug-in applied to it. The Video FX window appears.
2.Click the plug-in that you want to remove.
3.Click the Remove Selected Plug-In button.
CHP. 14 | USING VIDEO FX, COMPOSITING, AND MASKS |