Almost all settings were duplicated between BakeData and RenderData. The only missing field was the bake type, which is stored as a custom property in Cycles. This change: - Removes unused bake_samples and bake_biasdist. - Migrates settings like bake_margin to BakeData. - Switches multires baker to use bake_margin. - Introduces bake type in the BakeData, the same way how it was defined in RenderData::bake_mode. Pull Request: https://projects.blender.org/blender/blender/pulls/144984