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I've reset Nuke and loaded a clean Marcie in RotoPaint node so we can take a look at the Dodge tool. The Dodge tool pop-up contains two tools, the Dodge tool and the Burn tool. Let's take a look at the Dodge tool first. I'm going to use the Shift key to expand the size of my brush, and I'm going to draw on the screen. What's happening is the lighter parts of the picture are getting lighter, but the dark parts don't seem to be affected at all. That's the way of the Dodge tool. If we come down here and look at the Stroke tab, we'll see that the brush type is paint.
On the Common tab, the blending mode is color-dodge. If I select all three of those strokes and change the blending mode to something else like over, the effect goes completely away. So, we'll go back to our color-dodge and delete the strokes with the Delete key, there. The Burn tool, the second item in the pop-up, right here, Burn tool. Again, I'm going to increase the size of the brush, and I'm going to turn up the hardness tab that up a little bit.
Okay, so let's take a look at the Burn tool. The Burn tool seems to be darkening everything that isn't really bright and this is the way of the Burn tool. We'll go to the Stroke tab, and again the brush type is paint. On the Common tab, the blending mode is color-burn. So, if I select all three strokes and set the blending mode to something like over, the effect completely disappears. We'll put that back to color-burn.
For both the dodge and the burn tools, you can adjust their effect, dial down the effect, by lowering the opacity. Here I'll drop the opacity down here. There you go. In fact, I'm going to dial those completely off. So, there you have the RotoPaint node. It combines roto shapes and paint in one node, and you can draw as many shapes as you want, as many paint strokes as you want. It's a procedural paint system. You can edit the paint strokes and edit the shapes and animate them after the fact.
You can rename your strokes and your shapes. Group them together into groups, assign attributes to everybody in a group. It also has the Clone and Reveal tools as well the Dodge and Burn. Don't forget about that output mask, so that you can get a mask for any brush stroke, any operation you do in the RotoPaint node, and use it for regraining.
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