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Skin Modifier

Mode: Any mode

Panel: Modifiers

The Skin modifier uses vertices and edges to create a skinned surface, using a per-vertex radius to better define the shape.

It is a quick way to generate base meshes for sculpting and/or smooth organic shapes with arbitrary topology.

Note that faces in the input are ignored by the Skin modifier.


Skin modifier UI.
Create Armature
Create an armature for your object.
Branch Smoothing
Smooth the intersection vertices.
Selected Vertices
Mark Loose
Mark the selected vertices as loosing points. Loosing defines points which merge their faces with each other to fill gaps.
Clear Loose
Take the Loose away. The initial behavior.
Mark Root
Defines the root points of the object. These are the center of the object.
Equalize Radii
Makes the skin radii of selected vertices equal on each axis.


  • Select the cube. ⇆ Tab into edit mode and AltM » At Center to merge all vertices at one point. E then Z to extrude the vertex along the Z axis.
Skin Node Set Flag
One of the mesh's vertices must be set to Root. If you by accident delete the default root vertex, select a vertex, hit the Skin Node Set Flag button, and in the Mesh Tools menu set the new vertex to root.

Simple creature, made with only the Skin modifier.
  • In the modifiers' menu, add a Skin modifier.
  • ⇆ Tab into edit mode and start extruding. To see the actual "Z spheres", Z to change to wireframe mode. These spheres are actual meshes with a lot of polygons, so performance issues might occur on older computers.
  • Try to get sketch results similar to the picture (Simple creature, made with only the Skin modifier.), through extruding the vertices of the object.
  • Use CtrlA to change the size of the different regions within the creature.
  • Use Mark Loose at regions like the neck, to merge these faces more together.
  • To get smoother results, activate Smooth Shading and use Ctrl3 on the object.

External links

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This is the old manual!
For the current 2.7x manual see

User Manual

World and Ambient Effects


World Background

Ambient Effects

Stars (2.69)

Game Engine


Introduction to the Game Engine
Game Logic Screen Layout


Logic Properties and States
The Logic Editor


Introduction to Sensors
Sensor Editing
Common Options
-Actuator Sensor
-Always Sensor
-Collision Sensor
-Delay Sensor
-Joystick Sensor
-Keyboard Sensor
-Message Sensor
-Mouse Sensor
-Near Sensor
-Property Sensor
-Radar Sensor
-Random Sensor
-Ray Sensor
-Touch Sensor


Controller Editing
-AND Controller
-OR Controller
-NAND Controller
-NOR Controller
-XOR Controller
-XNOR Controller
-Expression Controller
-Python Controller


Actuator Editing
Common Options
-2D Filters Actuator
-Action Actuator
-Camera Actuator
-Constraint Actuator
-Edit Object Actuator
-Game Actuator
-Message Actuator
-Motion Actuator
-Parent Actuator
-Property Actuator
-Random Actuator
-Scene Actuator
-Sound Actuator
-State Actuator
-Steering Actuator
-Visibility Actuator

Game Properties

Property Editing

Game States



Camera Editing
Stereo Camera
Dome Camera




Material Physics
No Collision Object
Static Object
Dynamic Object
Rigid Body Object
Soft Body Object
Vehicle Controller
Sensor Object
Occluder Object

Path Finding

Navigation Mesh Modifier

Game Performance

Framerate and Profile
Level of Detail

Python API

Bullet physics


Standalone Player
Licensing of Blender Game

Android Support

Android Game development