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SubViewport

Inherits: Viewport < Node < Object

An interface to a game world that doesn’t create a window or draw to the screen directly.

Description

SubViewport Isolates a rectangular region of a scene to be displayed independently. This can be used, for example, to display UI in 3D space.

Note: SubViewport is a Viewport that isn’t a Window, i.e. it doesn’t draw anything by itself. To display anything, SubViewport must have a non-zero size and be either put inside a SubViewportContainer or assigned to a ViewportTexture.

Tutorials

• Using Viewports

• Viewport and canvas transforms

• GUI in 3D Demo

• 3D in 2D Demo

• 2D in 3D Demo

• Screen Capture Demo

• Dynamic Split Screen Demo

• 3D Viewport Scaling Demo

Properties

Enumerations

enum ClearMode:

ClearMode CLEAR_MODE_ALWAYS = 0

Always clear the render target before drawing.

ClearMode CLEAR_MODE_NEVER = 1

Never clear the render target.

ClearMode CLEAR_MODE_ONCE = 2

Clear the render target on the next frame, then switch to CLEAR_MODE_NEVER.

enum UpdateMode:

UpdateMode UPDATE_DISABLED = 0

Do not update the render target.

UpdateMode UPDATE_ONCE = 1

Update the render target once, then switch to UPDATE_DISABLED.

UpdateMode UPDATE_WHEN_VISIBLE = 2

Update the render target only when it is visible. This is the default value.

UpdateMode UPDATE_WHEN_PARENT_VISIBLE = 3

Update the render target only when its parent is visible.

UpdateMode UPDATE_ALWAYS = 4

Always update the render target.

Property Descriptions

ClearMode render_target_clear_mode = 0

• void set_clear_mode ( ClearMode value )

• ClearMode get_clear_mode ( )

The clear mode when the sub-viewport is used as a render target.

Note: This property is intended for 2D usage.

UpdateMode render_target_update_mode = 2

• void set_update_mode ( UpdateMode value )

• UpdateMode get_update_mode ( )

The update mode when the sub-viewport is used as a render target.

Vector2i size = Vector2i(512, 512)

• void set_size ( Vector2i value )

• Vector2i get_size ( )

The width and height of the sub-viewport. Must be set to a value greater than or equal to 2 pixels on both dimensions. Otherwise, nothing will be displayed.

Note: If the parent node is a SubViewportContainer and its SubViewportContainer.stretch is true, the viewport size cannot be changed manually.

Vector2i size_2d_override = Vector2i(0, 0)

• void set_size_2d_override ( Vector2i value )

• Vector2i get_size_2d_override ( )

The 2D size override of the sub-viewport. If either the width or height is 0, the override is disabled.

bool size_2d_override_stretch = false

• void set_size_2d_override_stretch ( bool value )

• bool is_size_2d_override_stretch_enabled ( )

If true, the 2D size override affects stretch as well.