Reference/Release Notes/2.90/More Features

= Blender 2.90: More Features =

Data Duplication
Data-blocks duplication (or deep copy, full copy) has been improved.
 * Doing a full copy of a scene will now use the same preference settings as when duplicating a collection or object, to determine which sub-data-blocks should also be copied.
 * Doing a full copy of a scene or collection now duplicates actions only if relevant option is set in the user preferences.
 * All usages of duplicated sub-data-blocks should now be properly remapped to their copies.
 * Doing a full copy of a local data-block will now never duplicate the linked sub-data it may use (this was already the case for scenes, but not for objects or collections before).
 * However, doing a full copy of a linked data-block will also duplicate all of its linked sub-data, if allowed (since user then wants to get a locale duplicate of its linked data).

Baking

 * New Ray Length setting, which limits how far rays can travel before they are excluded from the baking result. Useful for baking meshes with holes in them.

Motion Tracking

 * Added new lens distortion model which allows to solve motion in Blender and do compositing in Natron/Nuke. It is available in the Lens settings of movie clip and is called "Nuke" (which is the default model in Natron as well).

Sequencer

 * Add frame interpolation option to speed effect.

Experimental Features

 * The `User Preferences → Developers Extra → Experimental` options are now organized in different categories.
 * They are also only available on daily builds of master. Beta and Final releases don't have their panels.

Linux

 * Linux now has initial Wayland support, when building the `WITH_GHOST_WAYLAND` option. Some features are still missing in this implementation and X11 remains used by default for now.