To multiply a channel’s values is to times them by a given factor, which has the effect of lightening the channel while preserving the black point. (This operation is also knows as gain.)
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| Multiplying channel values. | Multiplying channel values. |
For this effect, you use Nuke’s Multiply node.
| 1. | Click Color > Math > Multiply to insert a Multiply node at the appropriate point in your script. |
| 2. | Connect a Viewer to the output of the Multiply node so you can see the effect of your changes. |
| 3. | In the Multiply properties panel, use the channels field to select the channel whose values you wish to multiply. |
| 4. | Use the value slider to input the factor by which to you want to times the channel’s values. |