Triangles to Quads¶

Reference

Mode:: Edit Mode
Menu:: Face ‣ Triangles to Quads
Shortcut:: Alt-J

Merges adjacent triangles in the selection into quads. This is essentially the opposite of Triangulate Faces and can be run on a complete mesh in one go.

The operator uses angle thresholds to prevent creating malformed quads, meaning that some triangles may remain.

../../../../_images/modeling_meshes_editing_face_triangles-quads_before.png — Before converting triangles to quads.¶

../../../../_images/modeling_meshes_editing_face_triangles-quads_after.png — After converting.¶

Options¶

Max Face Angle: The maximum allowed angle between triangle normals (that is, coplanar triangles are considered to have an angle of 0°, not 180°). Triangle pairs that exceed this limit will not be merged.
Max Shape Angle: The maximum tolerance for non-rectangular quads. If this is set to 0°, only triangles that form a quad with perfect 90° corners will be merged. If set to 40°, corners between 50° and 130° are allowed, and so on.
Topology Influence: How much to prefer creating new quads that match the topology of existing quads.

Tip

For best results, set Topology Influence between 100-130% and Max Angle to 180°. Lower values may leave behind parallelograms and triangles, while higher values may cause errors.
Compare UVs: Don’t merge triangles that are disjoint in any UV map.
Compare Color Attributes: Don’t merge triangles that, for any Color Attribute, have different colors at their shared edge.
Compare Seam: Don’t dissolve edges that are marked as UV Seams.
Compare Sharp: Don’t dissolve edges that are marked as Sharp.
Compare Materials: Don’t merge triangles that have different materials.
Deselect Joined: Deselect the triangles that were successfully merged into quads. Useful for identifying the remaining triangles that still need to be converted.