75f24a5f14
- Only calculate normals on the necessary domain - Functions for exporting generic data - Parallelize export of multiple submeshes - Parallelize export within a single submesh - Resize vectors to correct size to avoid reallocation - Simplify hot loops to improve performance - Optimize single material case to avoid index remapping `write_submeshes` timing information (average of many runs) | Test | Before | After | | ------------------------------ | --------- | --------- | | 6 million vert mesh | 791.99 ms | 130.75 ms | | 1.5 million vert 100 materials | crash | 48.27 ms | | Mr. Elephant test file | 778.95 ms | 277.06 ms | Pull Request: https://projects.blender.org/blender/blender/pulls/113412
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