changing 1000 clip properties, alpha chanels in 1 command

[Aleksey Tarasov]

Hi Shawn,
Scripts will do what you want (you need Vegas Pro). You can try to find a free script or use the paid tools, like Quick Properties from Vegasaur extension. (It has free 30-day trial period)

[Edward Troxel]

Both Excalibur and Ultimate S will do that as well. Here’s an OLD script I wrote five years ago that does this. Just save it as “AlphaChannelAllMedia.js” and run it in Vegas Pro.

/**
* This script will modify the alpha channel in the current
* project’s media pool.
*
* Written by Edward Troxel – http://www.JETDV.com
* Revision Date: Dec. 16, 2005
**/
import System.Windows.Forms;
import Sony.Vegas;

//var AType = VideoAlphaType.None;
//var AType = VideoAlphaType.Straight;
var AType = VideoAlphaType.Premultiplied;
//var AType = VideoAlphaType.PremultipliedDirty;

try {
var mediaEnum = new Enumerator(Vegas.Project.MediaPool);
while (!mediaEnum.atEnd()) {
var media = mediaEnum.item();
// only add the effect if the media object has a video stream.
if (media.HasVideo())
{
var mediaStream = media.Streams.GetItemByMediaType(MediaType.Video, 0);;
mediaStream.AlphaChannel = AType;
}
mediaEnum.moveNext();
}

} catch (e) {
MessageBox.Show(e);
}

Edward Troxel

[John Rofrano]

… does anyone know of a way to do this ? select 1000 clips at once, then change the properties from alpha channel none, to alpha channel straight unmatted

Yea, just download the free SetAlphaChannel.cs script from the Vegas Scripts page on my web site. It will change the alpha channel for all selected events so just select all of the events before you use it. There are also paid tools like Ultimate S Pro, Excalibur that provide lots of productivity tools that you will wonder how you ever edited without. 😉

~jr

http://www.johnrofrano.com
http://www.vasst.com