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Compositing in Nuke

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Date Added: 18th October 2012
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In the New Layer window, set a unique name for the new channel (ZDepth). The channel names are very important in Nuke. It is necessary to avoid duplication, so give them meaningful names so that you can find them easily. Click on the rgba below Auto. In the Channels lines will appear: red, green, blue, alpha etc. Erase all except the red one. In the settings tab of the ShuffleCopy node, put crosses in according to the scheme shown in Fig.34.

1608_tid_fig34.jpg
Fig.34

The logic is that we have rgb (Pontiac) in the second channel, and in the first channel we have a black and white map of the depth of the scene (ZDepth). The depth channel is transferred into the red channel and is added to the basic rgb channels.

And now in the Viewer tab from the drop-down menu besides rgb we also have a ZDepth channel (Fig.35).

1608_tid_fig35.jpg
Fig.35

Now we can add a ZBlur node, by going to Filter > ZBlur, and get the effect of blur depth (Fig.36).

1608_tid_fig36.jpg
Fig.36


We can see that the whole scene is now blurry. We need to set the channel, which will be a basis for blurring, by selecting from the drop-down list. We use ZDepth.red. Activate the focal-plane setup; it will help us to understand where the image will become sharp and where blurry. The viewer will turned blue (Fig.37).

1608_tid_fig37.jpg
Fig.37





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Readers Comments (Newest on Top)
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Tatevik on Sat, 29 December 2012 8:32pm
It's Perfect !!!
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Mariam on Sun, 28 October 2012 11:19am
Thak you for tutorial
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Ryan on Thu, 18 October 2012 3:27pm
very usefull indeed ... thnx friend
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Karen on Thu, 18 October 2012 12:44pm
Thank you very much. Very usefull lesson
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