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cmiVFX Releases New Nuke General Compositing Techniques
High Definition Training Videos for the Visual Effects Industry

Princeton, NJ (August 14th, 2012)‚ cmiVFX has released the brand new Nuke General Compositing Techniques by Jonathan McFall. Compositors are expected to take plates from a variety of sources, in many unconventional conditions, and marry them all together into a seamless cinematic scene. Modern film production often sources scene elements from many studios simultaneously. Compositors must be ready to handle whatever is presented and achieve a result that feels REAL. Here in this lesson Jonathan takes this challenge head on. Using elements from dozens of sources, in all manner of states, Jonathan teaches tried and true techniques to assemble and integrate them all into a single panoramic scene. With an application as powerful as The Foundry’s Nuke it is easy to get lost. Jonathan McFall guides you through this lesson on paths that he knows works in a production environment. With so many ways to choose, allow him to show you what has worked. This lecture is a fast paced riot of non-stop knowledge. It’s just going to make you better in Nuke.

Chapter Descriptions

Here is a brief introduction to the tutorial.

Finding and Prepping the Elements
First we prepare the photos from the internet for the matte painting by quickly keying the photos to create nice alphas. Some parts will require a bit of roto to create garbage mattes. Next, we start building the silhouette of a factory from random images and light the scene from random night-time photos. Clean up the script to make the computer run a little faster and render out an image sequence in Nuke with an aplha.

2D In A 3D Environment
We begin to recreate the 2D scene in Nuke’s 3d environment by projecting each on to cards so that you get exactly the same out put, but now in the 3d environment. Simply move the cameras and cards to scale the photos, rather than using the 2d transform node. To add realism and marry the various elements together we will now: make the clouds animate, use the zblur, use the focal plane setup, use the depth of field and lastly create a custom bokeh from scratch with the convolve tool.

The Fine Details
In this chapter we dive down to the adjust the finest details to achieve realism. A de-spill expression on blue and green screens offers production quality. DE-noise and then RE-grain in two different ways: the quick way and the professional way. Channel by channel, plate by plate this workflow matches the grain between each element in the scene. We wrap up the chapter with a fun bit of chromatic aberration (chromatic distortion) with two different methods.

Distress For A Miracle
All of chapter 5 is to recreate the imperfections that a camera creates in real life. To simulate reality is to make a better and more realistic matte painting. Its not just about making everything look as clean as possible, sometimes you have to make it look dirty too. Lets add some fire frames and retime the footage. Extend the project settings to a panoramic ratio. Included is a detailed explanation of the shuffle / shuffle copy nodes. Zdepth with color grading is employed for very subtle addition of realism. Next, we use a colourful bokeh to blend the foreground in and to simulate smudges and dust on the camera lens. Further use of defocus and chromatic aberration creates the illusion of a real camera viewing a real landscape. Jonathan offers many small adjustments and variations in this final chapter attempting to achieve the ‘miracle’ when photorealism occurs.

About John McFall
Jonathan is a compositor. He has worked on films shot in stereo, films converted to stereo, in occula, as a prep artist and as a stereo conversion artist. He started off his career as an illustrator and photoshop lecturer. Then a few years ago he discovered Nuke and now he’s hooked. He is currently teaching evening and day courses in Nuke. Jonathan has now taken his six years of university lecturing experience and the knowledge learnt from working on 15 films to create a training video for cmiVFX. He also likes walks in the park and anything to do with aliens. Jonathan’s favorite place is the Giger museum in Switzerland.

Special Thanks

The Foundry

HyperFocal Design

About Jonathan McFall
IMDB link: http://www.imdb.com/name/nm4200323/

Project Contents
All cmiVFX videos come with all the training materials you can need right from our website. No matter what time of day, your location, or how your feeling, cmiVFX will be there waiting for you!

This video is available today at the cmiVFX Store: http://store.cmivfx.com/

About cmiVFX
cmiVFX is the leader in High Definition Video Training for the Visual Effects Community. Register for FREE and receive hours of FREE content at the cmiVFX Video-on-Demand Player. ( http://store.cmivfx.com/login ) For additional information about cmiVFX, visit http://www.cmivfx.com. © 2012 cmiVFX | cmiStudios. All rights reserved.

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