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Basic Process
Running Rectify Grid is pretty straightforward:
Open the lens grid image.
Create trackers on the dots or corners of the grid, using Shot/Create Lens Grid Trackers or a neural net. See Preparing Trackers.
Clean up the trackers, eliminating spurious trackers, but being sure to add trackers all the way around the edge, wherever necessary and possible, to maximize coverage of the full image.
Run Rectify Grid (see Settings discussion below).
Examine the resulting image and grid sizes, from the descriptive Note that shows the input settings and what it did. There is no “error” value: the result is always “perfect,” subject to GIGO (garbage in, garbage out).
Use the image maps produced by Rectify Grid to undistort (and maybe re-distort) your production shots (and CGI footage that must match originals for workflow #2). Run the Sizzle scripts generated by Rectify Grids to quickly and reliably set up the image preprocessor.
©2024 Boris FX, Inc. — UNOFFICIAL — Converted from original PDF.