Math of Comp

Ben McEwan:

As you have previously purchased a course of mine, I wanted to reach out and invite you to the pre-release of my new course, The Math of Comp. It's an information-dense short course, aimed at heightening your technical understanding of what the common tools in Nuke are doing to the pixels in your images.

You can donate, I recommend you do.

Work in Progress

Today I submitted a shot that should have been a WIP. I guess my point was to get ideas and direction. I should have said just that. Instead I submitted shot that needed work. It's ok to submit a shot that needs work but you need to state that upon submission.

Problem solving is hard. It's ok to ask for help.

Practical

Ryan Summers:

For a shot of a map blowing away like cocaine, we shot baby powder in 10 minutes to get a good take while sims were going for days #mochat

This discussion on Twitter reminded me when Jim O'hagen was trying to fake blood spreading on a shirt. After a couple of hours of nothing. He got a camera from production and a paper towel. He shot water spreading into the paper towel. With that he had a matte for the effect. It worked great.

Furious

Fast 6

Greenscreen Composite

This was a shot that had a lot of problems. Rain in the greenscreen plates. Lights on cars that didn't look right. This was paint, roto and all the tricks in the bag. This was a ton of work for a simple greenscreen.

This shot was shared with Scott Davids.

Luminance Mix

relight.jpg

I saw this the other day and thought to myself, this is great but you can do that samething right now. Heres how.

set cut_paste_input [stack 0] version 7.0 v9 push $cut_paste_input NoOp { name FG_PLATE selected true xpos 142 ypos 33 } set N15f060c0 [stack 0] NoOp { name Blue_or_green_palte selected true xpos -27 ypos 33 } NoOp { inputs 0 name Color_Corrected_Plate selected true xpos -137 ypos -35 } Merge2 { inputs 2 operation difference name Merge1 selected true xpos -137 ypos 33 } Saturation { saturation 0 name Saturation1 selected true xpos -137 ypos 231 } push $N15f060c0 Merge2 { inputs 2 operation plus name Merge2 selected true xpos 142 ypos 231 }

Download script

Use a merge set to difference between the color corrected version and the non color corrected version. You then need to make it gray scale by desaturating the image. That will give you a dispill matte. You then plus this on top of your color corrected green screen plate. Then you can use the mix in the merge to control how much is added back in. This is also a knob in many dispill gizmos, it's called relight.

Enjoy.