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Viewport

Inherits: :ref:`Node<class_Node>` < :ref:`Object<class_Object>`

Creates a sub-view into the screen.

Description

A Viewport creates a different view into the screen, or a sub-view inside another viewport. Children 2D Nodes will display on it, and children Camera 3D nodes will render on it too.

Optionally, a viewport can have its own 2D or 3D world, so they don't share what they draw with other viewports.

If a viewport is a child of a :ref:`ViewportContainer<class_ViewportContainer>`, it will automatically take up its size, otherwise it must be set manually.

Viewports can also choose to be audio listeners, so they generate positional audio depending on a 2D or 3D camera child of it.

Also, viewports can be assigned to different screens in case the devices have multiple screens.

Finally, viewports can also behave as render targets, in which case they will not be visible unless the associated texture is used to draw.

Tutorials

Properties

:ref:`bool<class_bool>` :ref:`arvr<class_Viewport_property_arvr>` false
:ref:`bool<class_bool>` :ref:`audio_listener_enable_2d<class_Viewport_property_audio_listener_enable_2d>` false
:ref:`bool<class_bool>` :ref:`audio_listener_enable_3d<class_Viewport_property_audio_listener_enable_3d>` false
:ref:`DefaultCanvasItemTextureFilter<enum_Viewport_DefaultCanvasItemTextureFilter>` :ref:`canvas_item_default_texture_filter<class_Viewport_property_canvas_item_default_texture_filter>` 1
:ref:`DefaultCanvasItemTextureRepeat<enum_Viewport_DefaultCanvasItemTextureRepeat>` :ref:`canvas_item_default_texture_repeat<class_Viewport_property_canvas_item_default_texture_repeat>` 0
:ref:`Transform2D<class_Transform2D>` :ref:`canvas_transform<class_Viewport_property_canvas_transform>`  
:ref:`DebugDraw<enum_Viewport_DebugDraw>` :ref:`debug_draw<class_Viewport_property_debug_draw>` 0
:ref:`Transform2D<class_Transform2D>` :ref:`global_canvas_transform<class_Viewport_property_global_canvas_transform>`  
:ref:`bool<class_bool>` :ref:`gui_disable_input<class_Viewport_property_gui_disable_input>` false
:ref:`bool<class_bool>` :ref:`gui_snap_controls_to_pixels<class_Viewport_property_gui_snap_controls_to_pixels>` true
:ref:`bool<class_bool>` :ref:`handle_input_locally<class_Viewport_property_handle_input_locally>` true
:ref:`MSAA<enum_Viewport_MSAA>` :ref:`msaa<class_Viewport_property_msaa>` 0
:ref:`bool<class_bool>` :ref:`own_world<class_Viewport_property_own_world>` false
:ref:`bool<class_bool>` :ref:`physics_object_picking<class_Viewport_property_physics_object_picking>` false
:ref:`bool<class_bool>` :ref:`render_direct_to_screen<class_Viewport_property_render_direct_to_screen>` false
:ref:`ClearMode<enum_Viewport_ClearMode>` :ref:`render_target_clear_mode<class_Viewport_property_render_target_clear_mode>` 0
:ref:`UpdateMode<enum_Viewport_UpdateMode>` :ref:`render_target_update_mode<class_Viewport_property_render_target_update_mode>` 2
:ref:`ShadowAtlasQuadrantSubdiv<enum_Viewport_ShadowAtlasQuadrantSubdiv>` :ref:`shadow_atlas_quad_0<class_Viewport_property_shadow_atlas_quad_0>` 2
:ref:`ShadowAtlasQuadrantSubdiv<enum_Viewport_ShadowAtlasQuadrantSubdiv>` :ref:`shadow_atlas_quad_1<class_Viewport_property_shadow_atlas_quad_1>` 2
:ref:`ShadowAtlasQuadrantSubdiv<enum_Viewport_ShadowAtlasQuadrantSubdiv>` :ref:`shadow_atlas_quad_2<class_Viewport_property_shadow_atlas_quad_2>` 3
:ref:`ShadowAtlasQuadrantSubdiv<enum_Viewport_ShadowAtlasQuadrantSubdiv>` :ref:`shadow_atlas_quad_3<class_Viewport_property_shadow_atlas_quad_3>` 4
:ref:`int<class_int>` :ref:`shadow_atlas_size<class_Viewport_property_shadow_atlas_size>` 0
:ref:`Vector2<class_Vector2>` :ref:`size<class_Viewport_property_size>` Vector2( 0, 0 )
:ref:`bool<class_bool>` :ref:`size_override_stretch<class_Viewport_property_size_override_stretch>` false
:ref:`bool<class_bool>` :ref:`transparent_bg<class_Viewport_property_transparent_bg>` false
:ref:`World<class_World>` :ref:`world<class_Viewport_property_world>`  
:ref:`World2D<class_World2D>` :ref:`world_2d<class_Viewport_property_world_2d>`  

Methods

:ref:`World<class_World>` :ref:`find_world<class_Viewport_method_find_world>` ( ) const
:ref:`World2D<class_World2D>` :ref:`find_world_2d<class_Viewport_method_find_world_2d>` ( ) const
:ref:`Camera<class_Camera>` :ref:`get_camera<class_Viewport_method_get_camera>` ( ) const
:ref:`Transform2D<class_Transform2D>` :ref:`get_final_transform<class_Viewport_method_get_final_transform>` ( ) const
:ref:`Control<class_Control>` :ref:`get_modal_stack_top<class_Viewport_method_get_modal_stack_top>` ( ) const
:ref:`Vector2<class_Vector2>` :ref:`get_mouse_position<class_Viewport_method_get_mouse_position>` ( ) const
:ref:`int<class_int>` :ref:`get_render_info<class_Viewport_method_get_render_info>` ( :ref:`RenderInfo<enum_Viewport_RenderInfo>` info )
:ref:`ShadowAtlasQuadrantSubdiv<enum_Viewport_ShadowAtlasQuadrantSubdiv>` :ref:`get_shadow_atlas_quadrant_subdiv<class_Viewport_method_get_shadow_atlas_quadrant_subdiv>` ( :ref:`int<class_int>` quadrant ) const
:ref:`Vector2<class_Vector2>` :ref:`get_size_override<class_Viewport_method_get_size_override>` ( ) const
:ref:`ViewportTexture<class_ViewportTexture>` :ref:`get_texture<class_Viewport_method_get_texture>` ( ) const
:ref:`RID<class_RID>` :ref:`get_viewport_rid<class_Viewport_method_get_viewport_rid>` ( ) const
:ref:`Rect2<class_Rect2>` :ref:`get_visible_rect<class_Viewport_method_get_visible_rect>` ( ) const
:ref:`Variant<class_Variant>` :ref:`gui_get_drag_data<class_Viewport_method_gui_get_drag_data>` ( ) const
:ref:`bool<class_bool>` :ref:`gui_has_modal_stack<class_Viewport_method_gui_has_modal_stack>` ( ) const
:ref:`bool<class_bool>` :ref:`gui_is_dragging<class_Viewport_method_gui_is_dragging>` ( ) const
void :ref:`input<class_Viewport_method_input>` ( :ref:`InputEvent<class_InputEvent>` local_event )
:ref:`bool<class_bool>` :ref:`is_input_handled<class_Viewport_method_is_input_handled>` ( ) const
:ref:`bool<class_bool>` :ref:`is_size_override_enabled<class_Viewport_method_is_size_override_enabled>` ( ) const
void :ref:`set_attach_to_screen_rect<class_Viewport_method_set_attach_to_screen_rect>` ( :ref:`Rect2<class_Rect2>` rect )
void :ref:`set_input_as_handled<class_Viewport_method_set_input_as_handled>` ( )
void :ref:`set_shadow_atlas_quadrant_subdiv<class_Viewport_method_set_shadow_atlas_quadrant_subdiv>` ( :ref:`int<class_int>` quadrant, :ref:`ShadowAtlasQuadrantSubdiv<enum_Viewport_ShadowAtlasQuadrantSubdiv>` subdiv )
void :ref:`set_size_override<class_Viewport_method_set_size_override>` ( :ref:`bool<class_bool>` enable, :ref:`Vector2<class_Vector2>` size=Vector2( -1, -1 ), :ref:`Vector2<class_Vector2>` margin=Vector2( 0, 0 ) )
void :ref:`unhandled_input<class_Viewport_method_unhandled_input>` ( :ref:`InputEvent<class_InputEvent>` local_event )
void :ref:`update_worlds<class_Viewport_method_update_worlds>` ( )
void :ref:`warp_mouse<class_Viewport_method_warp_mouse>` ( :ref:`Vector2<class_Vector2>` to_position )

Signals

Emitted when a Control node grabs keyboard focus.


  • size_changed ( )

Emitted when the size of the viewport is changed, whether by :ref:`set_size_override<class_Viewport_method_set_size_override>`, resize of window, or some other means.

Enumerations

enum UpdateMode:

  • UPDATE_DISABLED = 0 --- Do not update the render target.
  • UPDATE_ONCE = 1 --- Update the render target once, then switch to :ref:`UPDATE_DISABLED<class_Viewport_constant_UPDATE_DISABLED>`.
  • UPDATE_WHEN_VISIBLE = 2 --- Update the render target only when it is visible. This is the default value.
  • UPDATE_ALWAYS = 3 --- Always update the render target.

enum ShadowAtlasQuadrantSubdiv:

  • SHADOW_ATLAS_QUADRANT_SUBDIV_DISABLED = 0 --- This quadrant will not be used.
  • SHADOW_ATLAS_QUADRANT_SUBDIV_1 = 1 --- This quadrant will only be used by one shadow map.
  • SHADOW_ATLAS_QUADRANT_SUBDIV_4 = 2 --- This quadrant will be split in 4 and used by up to 4 shadow maps.
  • SHADOW_ATLAS_QUADRANT_SUBDIV_16 = 3 --- This quadrant will be split 16 ways and used by up to 16 shadow maps.
  • SHADOW_ATLAS_QUADRANT_SUBDIV_64 = 4 --- This quadrant will be split 64 ways and used by up to 64 shadow maps.
  • SHADOW_ATLAS_QUADRANT_SUBDIV_256 = 5 --- This quadrant will be split 256 ways and used by up to 256 shadow maps. Unless the :ref:`shadow_atlas_size<class_Viewport_property_shadow_atlas_size>` is very high, the shadows in this quadrant will be very low resolution.
  • SHADOW_ATLAS_QUADRANT_SUBDIV_1024 = 6 --- This quadrant will be split 1024 ways and used by up to 1024 shadow maps. Unless the :ref:`shadow_atlas_size<class_Viewport_property_shadow_atlas_size>` is very high, the shadows in this quadrant will be very low resolution.
  • SHADOW_ATLAS_QUADRANT_SUBDIV_MAX = 7 --- Represents the size of the :ref:`ShadowAtlasQuadrantSubdiv<enum_Viewport_ShadowAtlasQuadrantSubdiv>` enum.

enum RenderInfo:

  • RENDER_INFO_OBJECTS_IN_FRAME = 0 --- Amount of objects in frame.
  • RENDER_INFO_VERTICES_IN_FRAME = 1 --- Amount of vertices in frame.
  • RENDER_INFO_MATERIAL_CHANGES_IN_FRAME = 2 --- Amount of material changes in frame.
  • RENDER_INFO_SHADER_CHANGES_IN_FRAME = 3 --- Amount of shader changes in frame.
  • RENDER_INFO_SURFACE_CHANGES_IN_FRAME = 4 --- Amount of surface changes in frame.
  • RENDER_INFO_DRAW_CALLS_IN_FRAME = 5 --- Amount of draw calls in frame.
  • RENDER_INFO_MAX = 6 --- Represents the size of the :ref:`RenderInfo<enum_Viewport_RenderInfo>` enum.

enum DebugDraw:

  • DEBUG_DRAW_DISABLED = 0 --- Objects are displayed normally.
  • DEBUG_DRAW_UNSHADED = 1 --- Objects are displayed without light information.
  • DEBUG_DRAW_OVERDRAW = 3 --- Objected are displayed semi-transparent with additive blending so you can see where they intersect.
  • DEBUG_DRAW_WIREFRAME = 4 --- Objects are displayed in wireframe style.
  • DEBUG_DRAW_GI_PROBE_ALBEDO = 6
  • DEBUG_DRAW_GI_PROBE_LIGHTING = 7
  • DEBUG_DRAW_GI_PROBE_EMISSION = 8
  • DEBUG_DRAW_SHADOW_ATLAS = 9
  • DEBUG_DRAW_DIRECTIONAL_SHADOW_ATLAS = 10
  • DEBUG_DRAW_SCENE_LUMINANCE = 11
  • DEBUG_DRAW_SSAO = 12

enum MSAA:

  • MSAA_DISABLED = 0 --- Multisample anti-aliasing mode disabled. This is the default value.
  • MSAA_2X = 1 --- Use 2x Multisample Antialiasing.
  • MSAA_4X = 2 --- Use 4x Multisample Antialiasing.
  • MSAA_8X = 3 --- Use 8x Multisample Antialiasing. Likely unsupported on low-end and older hardware.
  • MSAA_16X = 4 --- Use 16x Multisample Antialiasing. Likely unsupported on medium and low-end hardware.

enum ClearMode:


enum DefaultCanvasItemTextureFilter:

  • DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_NEAREST = 0
  • DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_LINEAR = 1
  • DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_LINEAR_WITH_MIPMAPS = 2
  • DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_NEAREST_WITH_MIPMAPS = 3
  • DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_MAX = 4

enum DefaultCanvasItemTextureRepeat:

  • DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_DISABLED = 0
  • DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_ENABLED = 1
  • DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_MIRROR = 2
  • DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_MAX = 3

Property Descriptions

Default false
Setter set_use_arvr(value)
Getter use_arvr()

If true, the viewport will be used in AR/VR process.


Default false
Setter set_as_audio_listener_2d(value)
Getter is_audio_listener_2d()

If true, the viewport will process 2D audio streams.


Default false
Setter set_as_audio_listener(value)
Getter is_audio_listener()

If true, the viewport will process 3D audio streams.


Default 1
Setter set_default_canvas_item_texture_filter(value)
Getter get_default_canvas_item_texture_filter()

Default 0
Setter set_default_canvas_item_texture_repeat(value)
Getter get_default_canvas_item_texture_repeat()

Setter set_canvas_transform(value)
Getter get_canvas_transform()

The canvas transform of the viewport, useful for changing the on-screen positions of all child :ref:`CanvasItem<class_CanvasItem>`s. This is relative to the global canvas transform of the viewport.


Default 0
Setter set_debug_draw(value)
Getter get_debug_draw()

The overlay mode for test rendered geometry in debug purposes.


Setter set_global_canvas_transform(value)
Getter get_global_canvas_transform()

The global canvas transform of the viewport. The canvas transform is relative to this.


Default false
Setter set_disable_input(value)
Getter is_input_disabled()

If true, the viewport will not receive input event.


Default true
Setter set_snap_controls_to_pixels(value)
Getter is_snap_controls_to_pixels_enabled()

If true, the GUI controls on the viewport will lay pixel perfectly.


Default true
Setter set_handle_input_locally(value)
Getter is_handling_input_locally()

Default 0
Setter set_msaa(value)
Getter get_msaa()

The multisample anti-aliasing mode. A higher number results in smoother edges at the cost of significantly worse performance. A value of 4 is best unless targeting very high-end systems.


Default false
Setter set_use_own_world(value)
Getter is_using_own_world()

If true, the viewport will use :ref:`World<class_World>` defined in world property.


Default false
Setter set_physics_object_picking(value)
Getter get_physics_object_picking()

If true, the objects rendered by viewport become subjects of mouse picking process.


Default false
Setter set_use_render_direct_to_screen(value)
Getter is_using_render_direct_to_screen()

If true, renders the Viewport directly to the screen instead of to the root viewport. Only available in GLES2. This is a low-level optimization and should not be used in most cases. If used, reading from the Viewport or from SCREEN_TEXTURE becomes unavailable. For more information see :ref:`VisualServer.viewport_set_render_direct_to_screen<class_VisualServer_method_viewport_set_render_direct_to_screen>`.


Default 0
Setter set_clear_mode(value)
Getter get_clear_mode()

The clear mode when viewport used as a render target.


Default 2
Setter set_update_mode(value)
Getter get_update_mode()

The update mode when viewport used as a render target.


Default 2
Setter set_shadow_atlas_quadrant_subdiv(value)
Getter get_shadow_atlas_quadrant_subdiv()

The subdivision amount of the first quadrant on the shadow atlas.


Default 2
Setter set_shadow_atlas_quadrant_subdiv(value)
Getter get_shadow_atlas_quadrant_subdiv()

The subdivision amount of the second quadrant on the shadow atlas.


Default 3
Setter set_shadow_atlas_quadrant_subdiv(value)
Getter get_shadow_atlas_quadrant_subdiv()

The subdivision amount of the third quadrant on the shadow atlas.


Default 4
Setter set_shadow_atlas_quadrant_subdiv(value)
Getter get_shadow_atlas_quadrant_subdiv()

The subdivision amount of the fourth quadrant on the shadow atlas.


Default 0
Setter set_shadow_atlas_size(value)
Getter get_shadow_atlas_size()

The shadow atlas' resolution (used for omni and spot lights). The value will be rounded up to the nearest power of 2.

Note: If this is set to 0, shadows won't be visible. Since user-created viewports default to a value of 0, this value must be set above 0 manually.


Default Vector2( 0, 0 )
Setter set_size(value)
Getter get_size()

The width and height of viewport.


Default false
Setter set_size_override_stretch(value)
Getter is_size_override_stretch_enabled()

If true, the size override affects stretch as well.


Default false
Setter set_transparent_background(value)
Getter has_transparent_background()

If true, the viewport should render its background as transparent.


Setter set_world(value)
Getter get_world()

The custom :ref:`World<class_World>` which can be used as 3D environment source.


Setter set_world_2d(value)
Getter get_world_2d()

The custom :ref:`World2D<class_World2D>` which can be used as 2D environment source.

Method Descriptions

Returns the 3D world of the viewport, or if none the world of the parent viewport.


Returns the 2D world of the viewport.


Returns the active 3D camera.


Returns the total transform of the viewport.


Returns the topmost modal in the stack.


Returns the mouse position relative to the viewport.


Returns information about the viewport from the rendering pipeline.


Returns the :ref:`ShadowAtlasQuadrantSubdiv<enum_Viewport_ShadowAtlasQuadrantSubdiv>` of the specified quadrant.


Returns the size override set with :ref:`set_size_override<class_Viewport_method_set_size_override>`.


Returns the viewport's texture.

Note: Due to the way OpenGL works, the resulting :ref:`ViewportTexture<class_ViewportTexture>` is flipped vertically. You can use :ref:`Image.flip_y<class_Image_method_flip_y>` on the result of :ref:`Texture2D.get_data<class_Texture2D_method_get_data>` to flip it back, for example:

var img = get_viewport().get_texture().get_data()
img.flip_y()

Returns the viewport's RID from the :ref:`VisualServer<class_VisualServer>`.


Returns the visible rectangle in global screen coordinates.


Returns the drag data from the GUI, that was previously returned by :ref:`Control.get_drag_data<class_Control_method_get_drag_data>`.


Returns true if there are visible modals on-screen.


Returns true if the viewport is currently performing a drag operation.




Returns true if the size override is enabled. See :ref:`set_size_override<class_Viewport_method_set_size_override>`.


Attaches this Viewport to the root Viewport with the specified rectangle. This bypasses the need for another node to display this Viewport but makes you responsible for updating the position of this Viewport manually.


  • void set_input_as_handled ( )

Stops the input from propagating further down the :ref:`SceneTree<class_SceneTree>`.


Sets the number of subdivisions to use in the specified quadrant. A higher number of subdivisions allows you to have more shadows in the scene at once, but reduces the quality of the shadows. A good practice is to have quadrants with a varying number of subdivisions and to have as few subdivisions as possible.


Sets the size override of the viewport. If the enable parameter is true the override is used, otherwise it uses the default size. If the size parameter is (-1, -1), it won't update the size.



  • void update_worlds ( )

Forces update of the 2D and 3D worlds.


Warps the mouse to a position relative to the viewport.