Avid DS Nitris Compositing and Effects Guide • 0130-05576-02A • February 2005
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Avid® DS Nitris™ Compositing and Effects Guide Version 7.6 ™ make manage move | media Avid ® Copyright and Disclaimer Product specifications are subject to change without notice and do not represent a commitment on the part of Avid Technology, Inc. The software described in this document is furnished under a license agreement. You can obtain a copy of that license by visiting Avid's Web site at www.avid.com. The terms of that license are also available in the product in the same directory as the software. The software may not be reverse assembled and may be used or copied only in accordance with the terms of the license agreement. It is against the law to copy the software on any medium except as specifically allowed in the license agreement. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose without the express written permission of Avid Technology, Inc. Copyright © 2004 Avid Technology, Inc. and its licensors. All rights reserved. Printed in USA. The Avid DS Nitris application uses JScript and Visual Basic Scripting Edition from Microsoft Corporation. Attn. Government User(s). Restricted Rights Legend U.S. GOVERNMENT RESTRICTED RIGHTS. This Software and its documentation are “commercial computer software” or “commercial computer software documentation.” In the event that such Software or documentation is acquired by or on behalf of a unit or agency of the U.S. Government, all rights with respect to this Software and documentation are subject to the terms of the License Agreement, pursuant to FAR §12.212(a) and/or DFARS §227.7202-1(a), as applicable. 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Adobe, Acrobat, and Acrobat Reader are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries. Microsoft, Windows, and Windows XP are registered trademarks of Microsoft Corporation. All other trademarks contained herein are the property of their respective owners. Footage Saturn “Calvin Egg” — Courtesy of Cossette Communications. GOT FOOTAGE? Editors — Filmmakers — Special Effects Artists — Game Developers — Animators — Educators — Broadcasters — Content creators of every genre — Just finished an incredible project and want to share it with the world? Send us your reels and we may use your footage in our show reel or demo!* For a copy of our release and Avid’s mailing address, go to www.avid.com/footage. *Note: Avid cannot guarantee the use of materials submitted. Avid DS Nitris Compositing and Effects Guide • 0130-05576-02A • February 2005 2 Contents Using This Guide. 21 Symbols and Conventions . 21 Mouse, Pen, and Keyboard . 22 Customizing the Pen or Mouse . 23 If You Need Help. 23 Avid DS Customer Support . 24 E-mail Support . 24 Web Support . 24 Upload Utility . 24 Avid Community Forum . 25 How to Order Documentation . 25 Avid Educational Services. 26 Chapter 1 Compositing . 27 Quick Recap: Compositing . 28 Using the Effects Tree to Composite . 29 Relationship within the Compositing Layout . 30 Working with the Layers View . 32 Adding Layers . 32 Reordering Layers . 33 Renaming Layers . 33 Scrolling Layers . 34 Navigating Through Layers . 34 Loading a Layer Effect in the Layers View . 35 Animating Layers . 36 Animating the Order of Layers . 36 Adjusting the Opacity of a Layer . 37 Animating the Transparency of a Layer . 38 Removing Layers and External Mattes . 38 Working with Mattes . 39 Using Clips with Internal Mattes . 39 Using Clips without Mattes in the Alpha Channel . 40 Creating a Matte by Using a Keyer. 41 Using the Shapes Tools . 41 Creating a Matte on the Timeline . 42 Creating a Matte on a Layer . 43 Viewing Mattes . 43 Using External Mattes in the Timeline and Layers View . 44 Using Matte Containers on the Timeline. 44 Using External Mattes on Layers . 46 Combining Mattes . 49 Working with Masks . 49 Applying Channel or Pixel Masking . 50 Using Alpha and Luma as Mask . 52 Applying Blending Operations in the Layers View . 52 Compositing with Premultiplied Images . 55 The Science behind Premultiplication . 56 Importing Source Files with an Alpha Channel . 58 Setting the Premultiplication Option . 58 Changing the Premultiplication Setting. 59 Applying the Premultiplication Effect . 59 Automatic Changes to the Premultiplication Setting . 61 Compositing Clips over a Black Background. 62 Unpremultiplying with Color. 63 Working with Layered Photoshop Images . 65 4 Photoshop Layer Notes and Tips . 66 Using Photoshop Images . 67 Deleting Imported Photoshop Files . 68 Processing Composites . 68 Processing Layered Clips on the Timeline . 70 Processing Effect Nodes . 71 Chapter 2 Using Effects Trees. 73 Applying Effects Trees . 74 Applying an Effects Tree on a Clip or Track. 74 Applying an Effects Tree as a Transition . 75 Converting a Stack of Effects to an Effects Tree . 76 Applying an Effects Tree on a Layer . 78 Opening the Effects Tree View. 79 Working with the Effects Tree . 79 Adding Effect Nodes to a Tree . 79 Adding Clips to the Effects Tree. 80 Adding or Removing Inputs To and From an Effect Node . 81 Connecting Nodes . 81 Disconnecting Nodes . 83 Selecting Nodes . 84 Collapsing and Expanding Nodes . 85 Removing Nodes . 85 Editing an Effect Node . 86 Viewing and Bypassing Nodes. 87 Folding Nodes . 88 Attracting or Repelling Nodes. 90 Organizing Nodes. ..