Operating system: Windows 10
Graphics card: GTX 1080Ti
Broken: 2.8 Beta
Short description of error
Baking normal maps many times in the same file drastically increases memory consumption, to the point where a bake that takes seconds in a new file is enough to freeze my computer completely.
Exact steps for others to reproduce the error
- Open the baking-bug file:
- Everything is set up, just click Bake. This will bake a simple beveled cube's normals to a regular cube.
This takes quite some time, and memory usage is through the roof. I've used a previous version of this file to bake over 100 high poly objects (door_high collection) to 15 subdivided low poly objects with cages (door_low collection) about 5 times each. Each time I hit Bake, Blender would take longer and use more memory. I've noticed this same behavior as far back as a year ago and never tracked it down, so I don't think it's anything new with 2.8.
- Open the baking-perfect file for comparison, which has the exact same cube objects copied over to a fresh file:
- Click Bake. This should be almost instantaneous.