Autodesk 62205-051408-9001 User Guide - Page 245

Example of Using Channel Effects ❚❘❘ Create a Workspace Begin by creating a workspace and importing footage. 1. Start Combustion, then choose File | New. 2. Select Composite from the Type list and enter Channel_effect in the Name field. 3. Enter the following format option settings: • NTSC D1 • Duration = 00:00:01:00 • Background Color = black 4. Click OK. A composite branch is created. 5. Choose File | Import Footage. The Import Footage browser appears. 6. Load a clip or sequence that is at least 30 frames long. The footage appears in the active viewport. 7. Name the layer RedChannel. You can change a layer's name by selecting the layer in the Workspace panel, clicking the layer once, entering a new name in the field that appears, then pressing ENTER. Create the Red Channel Use an RGB Arithmetic channel effect to extract both the green and blue channels from the image leaving only the red channel. 1. Select the layer. 2. Choose Operators | Channels | RGB Arithmetic. The RGB Arithmetic Controls panel appears. 3. In the Green Operator list, select Set. In the Blue Operator list, select Set. Enter new name here. Note: All Operands should be at 0%. 8. In the Toolbar (F2), click the Scale tool . 9. Click the layer in the active viewport to select it, then hold down SHIFT and drag the layer so that it is scaled to about 75% of the viewport. 229