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Christopher Linnett
d2fae0a144
The camera's Set Focus Distance to Layer command compared only 'd <= 0.0', which NaN passes, and two finite but extreme positions can overflow their difference to infinity; a stored non-finite focus distance serializes as null and leaves the project unsavable. Reject it, fall back to the zoom plane in the camera evaluation, and count a non-finite focus or depth as in focus. The Classic 3D blur radius itself was unbounded: a 0%-scaled or very distant layer scales it by up to 1e9, and the padded blur buffer sized from it aborts the process. Cap each plane's radius to a padded buffer that fits the renderer's 16 Mpx layer budget, don't blur planes whose pixels cover under a thousandth of a comp pixel, saturate the padded sizes, and refuse padded buffers past the project's maximum layer size. Regression tests for each guard.