Scene Properties

Scene

Reference

Panel:: Properties ‣ Scene ‣ Scene

Camera: Used to select which camera is used as the active camera. You can also set the active camera in the 3D Viewport with Ctrl-Numpad0.

Background Scene

Allows you to use a scene as a background, this is typically useful when you want to focus on animating the foreground for example, without background elements getting in the way.

This scene can have its own animation, physics simulations, etc, but you will have to select it from the Scene data-block menu, if you want to edit any of its contents.

Background Scenes can themselves have a Background Scene (they’re recursively included). So you can always make additions to existing scenes by using them as a background to a newly created scene where your additions are made.

Tip

This can also be used in combination with Linking to a Scene, where one blend-file contains the environment, which can be reused in many places.

Active Clip: Selects a Movie Clip that can be used by Motion Tracking Constraints or a camera’s Background Images.

Units

Reference

Panel:: Properties ‣ Scene ‣ Units

Unit System

The unit system to use for user interface controls.

None:: Use units that have with no relation to the real world, practically this is the same as Metric just without unit names.
Metric:: Use the metric unit system in this scene.
Imperial:: Use the imperial unit system in this scene.

Unit Scale: Scale factor to use when converting between internal units and values displayed in the user interface. This can be changed when modeling at microscopic or astronomical scales.

Note

This only influences the values displayed in the user interface and not how things behave internally. For example, physics simulations don’t take the unit scale into account.

Separate Units: When using Metric or Imperial, display properties as multiple values. For example, 2.285m will become 2m 28.5cm.

Rotation

Unit to use for displaying/editing rotation values.

Degrees:: Use degrees for angles in the user interface.
Radians:: Use radians for angles in the user interface.

Length

Unit that will be used to display length values.

Adaptive:: The unit used for a specific value depends on the magnitude of the value. For example, some values might be displayed as 23cm while others are displayed as 10km.
Meters/Centimeters/Feet:: A fixed unit that will be used for all lengths in the user interface.

Mass: See Length.

Time: See Length.

Temperature: See Length.

Imperial Length Units
Full Name	Short Name(s)	Scale of a Meter
thou	`mil`	0.0000254
inch	`"`, `in`	0.0254
foot, feet	`'`, `ft`	0.3048
yard	`yd`	0.9144
chain	`ch`	20.1168
furlong	`fur`	201.168
mile	`mi`, `m`	1609.344

Metric Length Units
Full Name	Short Name(s)	Scale of a Meter
micrometer	`um`	0.000001
millimeter	`mm`	0.001
centimeter	`cm`	0.01
decimeter	`dm`	0.1
meter	`m`	1.0
dekameter	`dam`	10.0
hectometer	`hm`	100.0
kilometer	`km`	1000.0

Gravity

Reference

Panel:: Properties ‣ Scene ‣ Gravity

Options to control global gravity used for physics effects.

See the Physics chapter for more information.

Keying Sets

Reference

Panel:: Properties ‣ Scene ‣ Keying Sets

See Keying Sets.

Audio

Reference

Panel:: Properties ‣ Scene ‣ Audio

Options to control global audio settings. To control how sounds is played back from within Blender, see the audio settings in the Preferences.

Volume: Volume for the scene.

Distance Model: Changes how the sound attenuation is calculated based on the distance. Most physically correct is the Inverse model, but it’s also possible to choose a linear and an exponential falloff. The clamped modes limit the volume to be lower than 100% (1.0), that means if the distance is smaller than the reference distance, the volume is always 100%. For an exact description of each option see the OpenAL documentation.

Doppler Speed: Speed of the sound for the Doppler effect calculations. The typical value is 343.3 m/s in air, in water for example this value is around 1560 m/s.

Doppler Factor: Controls how strong the Doppler effect is. You can exaggerate or attenuate the change of pitch, but physically correct is a factor of 1.0.

Update Animation Cache: Updates the audio animation cache. This is useful if you start noticing artifact in the audio.

Rigid Body World

Reference

Panel:: Properties ‣ Scene ‣ Rigid Body World

The Rigid Body World is a group of rigid body objects, which holds settings that apply to all rigid bodies in this simulation.

See Rigid Body World for more information.