Titania X3D Editor

It starts with you!

Titania v3.0.4

It starts with you!

X3D Reference



TouchSensor tracks location and state of the pointing device, detecting when a user points at or selects (activates) geometry.

The TouchSensor node belongs to the PointingDeviceSensor component and its container field is children. It is available since X3D version 3.0 or later.



SFNode [in, out] metadata NULL [X3DMetadataObject]

Metadata are not part of the X3D world and not interpreted by the X3D browser, but they can be accessed via the ECMAScript interface.

SFBool [in, out] enabled TRUE

Enables/disables node operation.

SFString [in, out] description ""

Author-provided text tooltip that tells users the expected action of this node.


Use spaces, make descriptions clear and readable. Many XML tools substitute XML character references automatically if needed (such as & for & ampersand, or " for " quotation mark).

SFVec2f [out] hitTexCoord_changed

When pointing device selects geometry, send event containing texture coordinates of surface at the hitPoint.

SFVec3f [out] hitNormal_changed

When pointing device selects geometry, send event containing surface normal vector at the hitPoint.

SFVec3f [out] hitPoint_changed

When pointing device selects geometry, send event containing 3D point on surface of underlying geometry, as measured in reference frame for TouchSensor's local coordinate system.

SFBool [out] isOver

Hover over geometry by aiming the mouse (or pointing device) to generate isOver events. Sensor sends output event isOver=true event when pointing device moves over sensor's geometry, and later sends output event isOver=false event when pointing device moves off.

SFBool [out] isActive

Select geometry by activating the pointing device (e.g. clicking the mouse) to generate isActive events. Output event isActive=true is sent when pointing device selection is activated, output event isActive=false is sent when pointing device is deselected.

SFTime [out] touchTime

Time event generated when sensor is touched by pointing device, and then deselected by the user.


TouchTime event is generated when following three conditions are all met: (a) pointing device was pointing towards geometry when initially activated (isActive=true), (b) pointing device is currently pointing towards the geometry (isOver=true), and (c) pointing device selection is deactivated/deselected by user (isActive=false event is also generated).



  • This sensor detects user interactions affecting peer nodes and their child geometry.

Browser Compatibility

Titania X_ITE
yes yes