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.

ToDoList

Frank Rueter: 

The ToDoList panel is a simple widget that helps organise your work on a nuke script.

 

Tab -> j

If you make use of backdrops in nuke you should be using "J". Try it ,I'll wait. Got it. Ok so those who are reading this away from any install of nuke. When hitting "j" you get the same node search dialog but for parts of your scripts.

Another reason to stay organized.

Many great tips on Nukepedia.com. Have a look for yourself.

NUKE 8 is coming: here’s what you need to know

By Mike Seymour: 

A new version of The Foundry’s flagship product will be shipping in 2013, with the company announcing at IBC that NUKE 8 is set for launch later this year. The Foundry’s timeline tool for NUKE, HIERO, will also be upgraded to version 1.8 this year.

 

Missed this in the video

Deep Output to the Scanline Renderer – part of the Deep Compositing workflow.

This sounds great:

Developer tools – developers will be able to write their own image processing operations inside of NUKE using the new Blink Script node, which utilizes the GPU. Developers will also be able to rely on the new Import NUKE function to use NUKE as a module in any Python interpreter, and developers of C++ plugins will be able to output planar data via the new Planar Rendering Framework.

NUKE 8.0 is coming | The Foundry

We've been working hard on our most anticipated product release this year, and we're very excited to be able to share the news that NUKE 8.0 is coming later this year.

 

It's s always exciting when the software you use everyday gets an update

Sneak Peek - NUKE 8.0

The Foundry: 

NUKE product manager, Jon Wadelton, goes through his favorite new and enhanced features in NUKE 8.0

 

Regrain blend on semi-transparent areas

Magno Borgo: 

Removal area/clean plate, regrained to match the background plate. It has an alpha channel, blurred to smooth transition. But when its composited Over the original plate (heavy grain), on the semi-transparent alpha region the grain is faint because of the blending.

 

This is a question that I have had asked to me many times. It's a very tricky question. I have heard lots of different ideas on how to solve the problem. Seeing that this question came from a nuke trainer, this is a problem for a lot of artist. Have a read.

RotoPaint Problems

One the main things items that are searched on this blog is RotoPaint problems.

In Nuke 6.3 the RotoPaint is painfully slow.

Here are 3 tips that will make Paint work much, much better.

  • Paint on 1 frame then frame hold that frame. Setting it this way Nuke has to only render one frame of paint instead of all.

  • Limit the amount of brush strokes to 100. When you get to one hundred start a new RotoPaint node. This will also keep you from losing less if a paint node goes belly up.

  • Place a shuffle before your RotoPaint node And set the alpha to 1[White]. This will help make he onion skinning work.

Remember the RotoPaint node is very very temperamental. Stay calm.

I'd like to be clear. I did not figure any of this out. These were told to me by other compositors.