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Page status (reviewing guidelines) Proposed split Text split mesh analysis Proposed fixes: none

Edit Mode

Entering Edit Mode

You can work with geometric objects in two modes.

Object mode

Operations in Object Mode affect the whole object.
Object mode has the following header in the 3D view:

Edit mode

Operations in Edit mode affect only the geometry of an object, but not global properties such as location or rotation.
Edit mode has the following header in the 3D view:

Tools and modes in the 3D view header are (left to right):

View, Select, and Mesh menus

Blender Mode

Display method for 3D view

Pivot center

3D manipulator widget

Selection mode

Depth buffer clipping (hide

Proportional editing

Snap

OpenGL render

You switch between these two modes with the ⇆ Tab key or by selecting the desired Mode in the menu in the 3d view header.

After creating an object you may be immediately placed in Edit mode – depending on whether the Switch to Edit Mode button is toggled in the User Preferences Editing tab. Edit mode only applies to one object at a time, the active, or most recently selected, object.

Visualization

By default, Blender highlights selected geometry in orange in both Object mode and Edit mode. The color can be changed in the User Preferences (CtrlAltU→Themes.)

In Object mode with Wireframe shading enabled (Z), objects are displayed in black when unselected and in orange when selected. If more than one object is selected, all selected object except the active object, typically the object last selected, is displayed in a darker orange color. Similarly, in Edit mode, unselected geometry is drawn in black while selected faces, edges, or vertices are drawn in orange. The active face is highlighted in white.

In Edit mode, only one mesh can be edited at the time. However, several objects can be joined into a single mesh (CtrlJ in Object mode) and then separated again (P in Edit mode). If multiple objects are selected before entering Edit mode, all the selected objects remain highlighted in orange indicating that they are part of the active selection set.

If two vertices joined by an edge are selected in Vertex selection mode, the edge between them is highlighted too. Similarly, if enough vertices or edges are selected to define a face, that face is also highlighted.

Tool Shelf

Open/close the Mesh Tools panel using T. When entering Edit mode, several mesh tools become available.

Most of these tools are also available as shortcuts (displayed in the Tooltips for each tool) and/or in the Specials menu (W), the Edge menu (CtrlE) ,and Face menu (CtrlF). For each tool a context-dependent menu is opened at the bottom of the Tool Shelf.

Even more mesh editing tools can be enabled in the User Preferences' Add-Ons section. The development of new tools is regularly announced on Blender-related sites and forums.

For further information on panels see the Reference panels section.

Properties Shelf

Open/close the Properties Shelf using N.

In the Properties Shelf, panels directly related to mesh editing are the Transform panel, where numeric values can be entered, and the Mesh Display panel, where for example normals and numeric values for distances, angles, and areas can be turned on.

Other useful tools are found in the Properties Editor under the Object's and Object Data's Context buttons, including display options and Vertex groups.

For further information on panels see the Reference panels section.

Mesh Display

TODO...

• Overlays
• Normals
• Edge/Face Info

Mesh Analysis

Mesh analysis is useful for displaying attributes of the mesh that may impact certain use cases.

The mesh analysis works in editmode and shows areas with a high value in red, and areas with a low value in blue. Geometry outside the range is displayed grey.

Currently the different modes target 3d-printing as their primary use.

Overhang

Extrusion 3D printers have a physical limit to the overhang that can be printed, this display mode shows the overhang with angle range and axis selection.

Thickness

Printers have a limited wall-thickness where very thin areas can't be printed, this test uses ray casting and a distance range to the thickness of the geometry.

Intersections

Another common cause of problems for printing are intersections between surfaces, where the inside/outside of a model can't be reliably detected.

Unlike other display modes, intersections have no variance and are either on or off.

Distortion

Distorted geometry can cause problems since the triangulation of a distorted ngon is undefined.

Distortion is measured by faces which are not flat, with parts of the face pointing in different directions.

Sharp Edges

Similar to wall-thickness, sharp edges can form shapes that are too thin to be able to print.

Warning There are some known limitations with mesh analysis Currently only displayed with deform modifiers. For high-poly meshes is slow to use while editing the mesh.