3D navigation

Moving the viewpoint

Knowing where to go and how

Changing the spatial relation to the world

Move as a participant within the scene

Control the scene from an external reference

Maintain correspondence between views

Stepping without travelling far

A step estimate drives virtual speed

Reduced space, altered bodily cues

Move beneath the user

Constrain and support sliding

Alternative physical arrangements

The intended trajectory

A different trajectory in the room

Subtle changes to visual motion

Where movement should go

How fast to move

When movement begins and ends

A stable reference and control context

Steering wheel, pedals or handles

A chosen model of motion

A destination and possibly orientation

The proposed arrival location

An immediate change of viewpoint

The system constrains the journey

The user can look or move within an envelope

Start, stop and limited steering

The environment within reach

Indicate a location on the model

Map model coordinates to the world

Establish a spatial anchor

Move the world relative to the body

End or reset the mapping

A region of interest

A target viewpoint around that region

Move to the chosen view

The participant changes the scale

The system adapts to a target or context

Scale changes reach and travel