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Blender 3.0: Modeling

Modifiers

  • Weld: new "Loose Edges" option that allows us to collapse only the edges without connected faces. (2beff6197e)
  • Surface Deform: new Sparse Bind option that omits recording bind data for vertices excluded by the vertex group at the time of bind, in order to save memory and slightly speed up modifier evaluation. (1ab6d5c1dc)
  • Mesh Cache: support for blending influence using vertex groups (c8f80453d5).

General Changes

  • Laplacian smooth now supports N-gons (c15635bd8d).
  • Support flipping sides in mesh bisect (1bcdd1c54e).
  • Boolean rename "Self" option to "Self Intersection" (82f0e4948c).

Knife Tool

The 2021 GSoC Knife Tool project made a number of improvements to the knife tool, which are now incorporated in this release (6e77afe6ec)

New Features

  • Constrained Angle Mode Improvements
    • Added Knife Tool setting to control snapping angle increment
    • Added support for entering snapping angle increment via number keys
    • Added a relative constrained angle mode (A key, with R to cycle through possible reference edges)
    • Added Knife Tool setting for constrained angle default mode
  • Snapping to Global and Local Orientation
    • Press X, Y or Z to snap cut line to respective global axis
    • Pressing the same key again will snap to local axis
    • Respects scene orientation setting if set, allowing for custom orientation
  • Visible Distance and Angle Measurements
    • Pressing S will enable measurements
    • Pressing S repeatedly will cycle between three modes - Only Distance, Only Angles, Both
    • Shows length of current cut segment
    • Shows angle between current cut segment and previous cut segment or mesh edge
    • Shows angle between current cut segment and any snapped to cut segment or mesh edge
  • Undo Capability
    • Press Ctrl-Z to undo previous cut segment
    • Starting point for current cut segment is adjusted accordingly
    • If cut is a drag cut the entire drag cut is undone
  • X-Ray Mode
    • Press V to toggle depth checking for cut segment drawing code
  • Multi-Object Edit Mode
    • Added support for multi-object edit mode to Knife Tool
    • Cuts can be made across objects and from the geometry of one object to another

Key Remappings

  • Cancel
    • RIGHTMOUSE to ESC
  • New Cut
    • E to RIGHTMOUSE
  • Snap Midpoints
    • LEFT_CTRL to LEFT_SHIFT
    • RIGHT_CTRL to RIGHT_SHIFT
  • Ignore Snapping
    • LEFT_SHIFT to LEFT_CTRL
    • RIGHT_SHIFT to RIGHT_CTRL
  • Angle Snapping
    • C to A
  • Cut Through Toggle
    • X to C