Orbital Transposer Virtual Camera Explained in Unity’s Cinemachine

Objective: To understand what the Orbital Transposer virtual camera is in Unity’s Cinemachine and how to use it.

Orbital Transposer circling the ‘Follow’ target

As the Transposer, Framing Transposer and the Orbital Transposer all share similar settings, this article will only cover the new settings that haven’t been discussed in the other two. Links will be provided to previous articles for existing settings discussed, below.

What is the Orbital Transposer Virtual Camera?

This virtual camera moves in a variable relationship to the ‘Followtargets position. It introduces new concepts such as ‘Heading’ and ‘Heading Bias’ which are only available with this mode (discussed below).

On top of this compared to other virtual cameras, it allows for optional player input which if used, allows the orbital camera position to be dynamically changed, relative to the ‘Followtarget. Once you have attached an input controller to the orbital transposer, this will then be available.

Let’s Take a Look at the Orbital Transposer Settings

The new settings available for the Orbital Transposer

Heading

Heading refers to the direction the ‘Follow’ target is facing or moving. By default, the Orbital Transposer’s position will be directly behind the ‘Follow target and this virtual cameras position can be adjusted using the ‘Heading Biasfield.

Definition

Refers to how the virtual camera defines the ‘Forwardposition.

Position Delta Calculated as the difference of the ‘Followtargets position between the last update and the current frame.

Velocity — Uses the velocity of the Rigidbody of the ‘Follow’ target.

Target Forward — Uses ‘Followtargets local axis as the forward heading.

World Forward — Uses World Space as the forward heading.

Bias

The position where the virtual camera sits in relation to the direction the ‘Followtarget is facing. This camera is rotated around the Y-axis (orbital tracking) as the ‘Followtarget also rotates. This ranges from -180 to 180 and the default is set behind the ‘Followtarget which is 0.

E.g. If I was then to move from 0 to -180 it would rotate the Orbital Transposer camera to the right of the ‘Follow’ target in an arcing circle until it was in front of the target. Vice versa if we were to move from 0 to 180.

Changing the Orbital Cameras Bias from 0 to -180 and then back from -180 to 180.

Recenter to Target Heading

When there is no input from the player, if this option is enabled/ticked, it will automatically recenter the virtual camera.

Wait Time

The time taken since there has been no player input.

Recentering Time

How long it takes for the virtual camera to reset back to it’s position.

X-Axis

These settings control the behaviour of the virtual camera after a user/player has given input.

Value

This is the current value of the axis.

Value Range

This is the minimum and maximum value of the axis allowed for the player input.

Wrap

If this tick box is enabled, it will allow the axis to wrap around at the min/max mark, effectively creating a loop.

Speed

This is how the axis responds to the player input. Depending on the speed mode chosen here, this could either be the maximum speed allowed of this axis in units/second OR the input value multiplier.

Acceleration/Deceleration Time

This is the amount of time in seconds to accelerate to max speed on axis to it’s maximum value / to decelerate the axis to 0 if the axis is in a neutral position.

Input Axis Name

This is the name of the axis that is supplied in Unity’s Input Manager.

Input Axis Value

This is the value of the input axis and if you were to set this value to 0, that would mean there is no input.

Follow Offset and Damping

Follow offset is the location of the virtual camera when the X, Y & Z axis offsets have been applied.

X, Y & Z damping has been covered here.

Pitch, yaw & roll damping has been covered here.

How Would We Make Changes at Runtime Through Scripting?

Take a look at this previous article which covers this.

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Passionate Unity Game Developer

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Chris Hilton

Chris Hilton

Passionate Unity Game Developer

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