Automatically changing the orthographic mode – perspective mode in Blender 2.8

In the new Blender 2.80 in the “3D View” window (3D Viewport), when scrolling a wheel to zoom or pressing the num pad buttons (1, 3, 7, 9) to center the view to different sides, the projection mode automatically changes between orthographic and perspective.

To disable this automatic mode changing, in the “User Preferences” window – “Navigation”, change the value of the Auto Perspective checkbox:

 

Blender 2.80 Beta released

Blender 2.80 Beta released now.

This version available for download from the official developer Blender site builder.blender.org/download

Highlights:

  • The release, of course, is not stable and is not recommended for use in production.
  • The estimated release date of the stable release is after 4 months.
  • The API is declared stable, but some minor changes can be made. Add-on developers are encouraged to start porting their add-ons to 2.80.
  • The bug-tracker opens for any bug reports.

How to find out in what version of Blender the blend file was saved

To check in what version of Blender the blend file was saved:

  • Open your file in Blender
  • In the Python Console window execute the following command:

Or open the blend file in any text editor, for example in Notepad++. The Blender version will be listed in the first 15 characters.

Also, the version of the open blend file can be viewed in the Outliner window in the Data Blocks group:

How to get the version of the add-on installed in Blender

A complete list of add-ons installed in Blender we can get using the addon_utils:

Having the add-ons list, we can get the version of the desired add-on by its name with the following code:

Where the ADD-ON_NAME is the name of the desired add-on.

If the add-on is missing a version indication, the default result will be returned.

 

How to programmatically switch between vertex, edge and face selection mode

Change the mesh_select_mode property to switch in mesh edit mode between vertex, edge and polygon selection mode in Blender.

For vertex selection mode:

Edge selection mode:

And face selection mode:

The multi-select mode is enabled too. For example for vertex and face selection mode:

In BMesh for vertex, edge and face selection mode:

For multi-select in BMesh: