Unity Cookbook. 3D with Blender

Blender basics

  • Before we start:
    • In Edit > Preferences > Keymap, Change Spacebar action to Search.
  • 3D objects consist of vertices (points), edges and faces.
  • The default 3D object in Blender is a cube.
  • Use left click to choose an object.
  • We can manipulate the shape of the chosen object in the Edit mode, and move the objects themselves around in Object mode.
  • Hold Mouse wheel button to rotate view.
  • Shift+hold Mouse wheel to pan the current view.
  • Roll the mouse wheel to zoom in/out
  • To move between cardinal axis views, press numpad 1/3/5/7.
  • Press numpad 5 to change between perspective and orthographic views.

Edit mode

  • Tab: jump between Edit/Object mode.
  • In Edit mode, we have three select modes:
    • Vertex select
    • Edge select
    • Face select
  • Be sure you have the Select box tool selected!
  • Use LMB to select.
    • Hold CTRL to select more!
  • Protip: Click the Toggle x-ray button to see vertices, edges and faces behind the surface.

Transform selection tools

  • E: Extrude selection
  • S: Scale selection
  • R: Rotate selection
  • After choosing any of the three tools above, you can press X, Y, or Z, to only transform along that axis.
    • Press X,Y, or Z again to transform along object’s local axis.
    • You can also press Shift+X etc. to transform along a plane (in this example, the Y-Z plane)

Cutting tools

  • CTRL+R: use loop cut tool to add a new subdivision
    • Click once to choose which face to loop cut, then:
    • Roll mouse wheel to choose how many subdivisions you want
    • Press Enter to confirm or ESC to cancel.
  • K: to use knife tool to add a new subdivision
    • Click LMB to start cutting
    • Click again to start a new cut
    • Press Enter to confirm or ESC to cancel.

Extras: Vertex colors from Blender to Unity

https://stackoverflow.com/questions/48312958/showing-a-model-with-vertex-painted-colours-in-unity