Niccolo' Barbero - digital compositor - (via Instapaper)

Walking Pants Breakdown Video Part 2

Walking Pants (Invisible Man) Breakdown Video Part 1

Rotoscoping - Part 1

Rotoscoping - Part 2

Visual Effects Wikipedia
This is is a wiki for visual effects artists. It is being created by vfx artists working on feature films.
It is a notebook of tid-bits for pixel pushers and their notes from the edge.
If you want to contribute read the about page.
If you are looking for something use the search function, or look in the index below of all the pages on this site. Failing that use the custom google search below, to search VFX only sites on the web.
Most of there pages are rough notes, unintelligible, and not available publicly

The concept of a deep image isn’t brand new; ultimately it’s just the technique of encoding more than just the RGBA value in a pixel. Many applications and systems already store multiple channels of data to enhance the compositing workflow as well as re-using calculations already performed by the rendering engine. Side FX software’s Houdini is an example of one of the more recent applications to utilize this workflow via it’s custom camera image format.
What we’re doing is utilizing a simplification of already existing representations for shadow maps to encode camera space information. This reaches further than traditional Z depth buffers, as those tend to lead to artifacts in semi transparent areas, such as motion blur or oversampling.
Deep images solve this issue by storing multiple samples for every pixel at varying depths which contain the chosen values (opacity, color, P) at that depth, encoding it in efficient way to solve a lot of the aforementioned historical issues.

NFXPlugins contains nodes ranging from Transformations, Filters, Color operations such a tone mapping, and other misc operations. NFXPlugins also includes numerous nodes similar to ones found in Apple's Shake compositing package, either because Nuke doesn't contain a standalone version as the one found in Shake or for the simple purpose to help Shake users transition to Nuke.

another online software to convert animation tracks between different comp applications

Just browsed through my old bookmarks & found this — Digital Compositor - So, what is it you do exactly? —