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| Just to build on what Chris said: 1. Before you start, pick several base frames in your clip, each with defining poses the character holds. Lock in your tolerance and color estimation settings. Never have a span longer than 50-100 frames, it takes forever to propagate if you need to revise those frames. You create new base frames by painting on a frame outside the span range (under the layer frame timeline). 2. Avoid revising frames whenever possible. Start work from each of your base frames and work sequentially frame to frame. DO NOT jump around between frames. This completely screws up the propagation. 3. Enhance the contrast with a filter (like levels or curves) in the effect stack before doing the roto work. The rotobrush picks up on details better. When you are done, freeze the propagation and turn off the effect for rendering. 4. Do not turn on smooth or refine mattes until you have finished and frozen the layers. 5. Use absolutely the fewest strokes possible to create each matte. If you make a mistake, don't paint over it. Undo it instead. Extra strokes mean extra processing and it can screw up the edge detection. 6. Start with the largest brush in each frame and work progressively smaller. Let the rotobrush do the work, don't waste time with small details that could be pulled out by changing your tolerance settings. On Tue, Mar 26, 2013 at 3:47 PM, Chris Meyer <chris@crishdesign.com> wrote:
-- Animator & Editor www.teddygage.com Brooklyn |
