Autodesk 62205-051408-9001 User Guide - Page 109
Keying and Color Correction Branches, Text and Particles Branches
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Creating Branches in the Workspace ❚❘❘ Note: If you create solid footage and add a Particles operator to it (both in one step), you cannot select a bit depth; the Particles operator does not support bit depths higher than 8 bit. Keying and Color Correction Branches Usually, a keyed or color-corrected clip is used in a composite, so you can create either type of branch first and then flow the output into a composite as a layer. The difference between this method and adding any of the Keying or Color Correction operators to a layer is only a personal preference for workflow style. You can quickly render a processed clip without making a composite with it. The branch can also be used elsewhere in the process tree as a secondary input source. For example, a color-corrected clip can be a Reveal source in Paint. In the following example, a keyed clip is output as a matte and used as the source for the Set Matte operator. Text and Particles Branches As previously explained, whether you create a branch and use it later in a composite, or create a composite and then add the operator to a layer, is based on a personal preference for workflow style. The results are identical. For example, you can create a Particles operator on solid footage to design a new emitter. You can save the new emitter to the emitter library and use it later when you add a Particles operator to a layer. Or, if you like the emitter object (the emitter in the viewport) as it is, you can link the output of the Particles operator as a layer in a composite. You do not need to use the branch for a composite. For example, you can create a Text operator on solid footage to design a watermark, then reuse the same operator at the end of several branches (such as color-corrected clips) to render watermarked clips. Opening Footage and Creating Solid Footage You can see the Footage Library at the bottom of the Workspace panel or Timeline. You can also show the Footage Library view in a viewport. For information, see "Using Footage Library View" in Chapter 6, "Using Schematic View''. Solid footage A Keyer branch becomes the secondary source for a Set Matte operator. When you use the output of a branch as a secondary source, the change is also shown in the Workspace panel. Unused footage in Footage Library If you open footage into a branch (Paint, for example), the footage appears in the Footage Library automatically. Also, if you import footage into a composite as a layer, or an Edit operator as a segment, it appears in the Footage Library. 93
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