From the course: Compositing a Sci-Fi Force Field in NUKE

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Setting the flash lighting

Setting the flash lighting - Nuke Tutorial

From the course: Compositing a Sci-Fi Force Field in NUKE

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Setting the flash lighting

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- We now have a flash mask for our room as well as our character, so now we're ready to put in the flash illumination itself. The first thing I need to do is merge these two masks together into one single mask, so that's easily done by using a channel merge node. So we'll take the mask from our character and union with our room flash masks, and there we go. Now we'll feed this mask to a grade node. We can flash this room by simply having a color correction that we toggle on and off. So let me add a grade node here. And let's label this... flash illumination. And of course, we're going to use this as a mask so that we don't light up the whole room. So I'll connect my viewer to my grade node and as you can see, I can now add flash to it by adjusting the grade node. Now, the character's not in the room, so to see my character I need to go to frame 80 or so. So let's go here. Now you can see that the flash lands on the character as well. So, we now need to set the color of the flash. The…

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