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Apple Shake 4 Tutorials

Exporting a Finished Composite / Using Multiple FileOut Nodes




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This movie will cover the use of multiple file out nodes. When compositing, it can be helpful to render intermediate stages of our node tree in order to speed processing. Or, at the end of your node tree, you may want to render out one version for film, a second for viewing on the computer and a third for video output. Fortunately, Shake 4 allows for unlimited file out nodes. You can set each one to a different kind of output, and they can be rendered together. All the frame ones, then all the frame twos, or sequentially: QuickTime, then tifs, then SGIs. For our first example, let's use multiple file out nodes to speed our compositing. We have a node tree here with two main branches. One, for our foreground image and one for our background image. They're noodled into an Over node. After which, is our final file out. I just want intermediate comps of the foreground tree and background tree so that just before and just after my overnode, I can experiment with additional color corrections and effects. I select the last node in the foreground chain before the over and I right click the image file out node to create a branch. Because the foreground needs an alpha channel, let's output it as a targa sequence with an alpha. I'm going to make a new folder and called it intermediate outs. And I hit okay. I double click the folder to go inside of it and I'm going to save this with the format foreground - or FG.@@@, so it'll go 001, 002, 003.tga. And "tga" is the file extension for targa. I hit okay. And see, I have a branch that's coming off and that's my output. My file out is named after the name that I specified in my browser. And here, I have my file format as auto. I can change that to targa. And I want it to output with an alpha channel, so I chose RGBA. And I don't want it compressed. In my script globals, I make sure that my time range is set to the length of my composite. For my background pass, I select the last node before the Over on the background chain and then I go to image file out and right click. Again, I choose branch and I type in BG.@@@.tga. And I hit okay. In the file out parameters for the BG node, I set the file format to targa and my pixel format to RGB because I don't need an alpha channel. Again, I turn off my compression. I select both file outs and I go to the render menu up at the top. Here, I choose render file out nodes and I set it to selected in the render parameters that open up. Also, at the bottom of the window I turn on sequential to render one file out at a time. I hit render and once they're rendered, I can image file in each one and attach it to my node tree just before the Over. I would replace this chain with the file in of just the foreground and I'd replace the background chain with the file in of just the background. Now, if I wish to render multiple file outs at the end of my composite, I would create file outs as branches off of that last over. If I wanted to render a half size preview, I would attach a transform zoom node. Set the zoom node to 0.5, and then when I wanted to make my file out, I would name it something like halfsize.mov and in the codec options for that .mov set it to Sorenson video 3, which is a nice, small codec. In the end, that QuickTime would be nice and small and perfect for emailing. For further information about file formats and rendering, please view the movies on file formats and command line rendering.

Tutorial Information

Course: Apple Shake 4
Author: Kalika Kharkar
SKU: 33768
ISBN: 1-933736-87-9
Release Date: 2007-06-28
Duration: 9 hrs / 106 lessons
Work Files: Yes
Captions: For Online University members only
Compatibility: Vista/XP/2000, OS X, Linux
QuickTime 7, Flash 8

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