Apple Shake 4 Tutorials Instrukcja Użytkownika Pobierz pdf (Strona 105)

Chapter 3 Depth Compositing 105

This is an extreme color change, but it helps illustrate the issue with premultiplied

images. Time to tone it down a bit.

5 Load the Add1 parameters (click the right side of the node), then set the RGB color

values to 0.2, 0.11, and 0.07.

That’s a little better, but the blacks could use more contrast.

6 Select the Add1 node and insert a Color–ContrastLum node.

7 In the ContrastLum1 parameters, drag the value slider to 1.1, then drag the center slider

to 1.

This color correction works well for most of the balloons. One exception is the zeppelin

on the far right, which is too bright for the rest of the composite.

You can use a rotoshape mask to limit color correction for the small zeppelin.

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Apple Shake 4 Tutorials Instrukcja Użytkownika Strona 105