path: root/doc/classes/Viewport.xml

<?xml version="1.0" encoding="UTF-8" ?>
<class name="Viewport" inherits="Node" version="4.0">
	<brief_description>
		Creates a sub-view into the screen.
	</brief_description>
	<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 Camera3D 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 [SubViewportContainer], 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.
	</description>
	<tutorials>
		<link title="Viewport and canvas transforms">https://docs.godotengine.org/en/latest/tutorials/2d/2d_transforms.html</link>
		<link title="Viewports tutorial index">https://docs.godotengine.org/en/latest/tutorials/viewports/index.html</link>
		<link title="GUI in 3D Demo">https://godotengine.org/asset-library/asset/127</link>
		<link title="3D in 2D Demo">https://godotengine.org/asset-library/asset/128</link>
		<link title="2D in 3D Demo">https://godotengine.org/asset-library/asset/129</link>
		<link title="Screen Capture Demo">https://godotengine.org/asset-library/asset/130</link>
		<link title="Dynamic Split Screen Demo">https://godotengine.org/asset-library/asset/541</link>
		<link title="3D Viewport Scaling Demo">https://godotengine.org/asset-library/asset/586</link>
	</tutorials>
	<methods>
		<method name="find_world_2d" qualifiers="const">
			<return type="World2D">
			</return>
			<description>
				Returns the 2D world of the viewport.
			</description>
		</method>
		<method name="find_world_3d" qualifiers="const">
			<return type="World3D">
			</return>
			<description>
				Returns the 3D world of the viewport, or if none the world of the parent viewport.
			</description>
		</method>
		<method name="get_camera" qualifiers="const">
			<return type="Camera3D">
			</return>
			<description>
				Returns the active 3D camera.
			</description>
		</method>
		<method name="get_final_transform" qualifiers="const">
			<return type="Transform2D">
			</return>
			<description>
				Returns the total transform of the viewport.
			</description>
		</method>
		<method name="get_mouse_position" qualifiers="const">
			<return type="Vector2">
			</return>
			<description>
				Returns the mouse position relative to the viewport.
			</description>
		</method>
		<method name="get_render_info">
			<return type="int">
			</return>
			<argument index="0" name="info" type="int" enum="Viewport.RenderInfo">
			</argument>
			<description>
				Returns information about the viewport from the rendering pipeline.
			</description>
		</method>
		<method name="get_shadow_atlas_quadrant_subdiv" qualifiers="const">
			<return type="int" enum="Viewport.ShadowAtlasQuadrantSubdiv">
			</return>
			<argument index="0" name="quadrant" type="int">
			</argument>
			<description>
				Returns the [enum ShadowAtlasQuadrantSubdiv] of the specified quadrant.
			</description>
		</method>
		<method name="get_texture" qualifiers="const">
			<return type="ViewportTexture">
			</return>
			<description>
				Returns the viewport's texture.
				[b]Note:[/b] Due to the way OpenGL works, the resulting [ViewportTexture] is flipped vertically. You can use [method Image.flip_y] on the result of [method Texture2D.get_data] to flip it back, for example:
				[codeblock]
				var img = get_viewport().get_texture().get_data()
				img.flip_y()
				[/codeblock]
			</description>
		</method>
		<method name="get_viewport_rid" qualifiers="const">
			<return type="RID">
			</return>
			<description>
				Returns the viewport's RID from the [RenderingServer].
			</description>
		</method>
		<method name="get_visible_rect" qualifiers="const">
			<return type="Rect2">
			</return>
			<description>
				Returns the visible rectangle in global screen coordinates.
			</description>
		</method>
		<method name="gui_get_drag_data" qualifiers="const">
			<return type="Variant">
			</return>
			<description>
				Returns the drag data from the GUI, that was previously returned by [method Control.get_drag_data].
			</description>
		</method>
		<method name="gui_is_dragging" qualifiers="const">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if the viewport is currently performing a drag operation.
			</description>
		</method>
		<method name="input">
			<return type="void">
			</return>
			<argument index="0" name="event" type="InputEvent">
			</argument>
			<argument index="1" name="in_local_coords" type="bool" default="false">
			</argument>
			<description>
			</description>
		</method>
		<method name="input_text">
			<return type="void">
			</return>
			<argument index="0" name="text" type="String">
			</argument>
			<description>
			</description>
		</method>
		<method name="is_embedding_subwindows" qualifiers="const">
			<return type="bool">
			</return>
			<description>
			</description>
		</method>
		<method name="is_input_handled" qualifiers="const">
			<return type="bool">
			</return>
			<description>
			</description>
		</method>
		<method name="set_input_as_handled">
			<return type="void">
			</return>
			<description>
				Stops the input from propagating further down the [SceneTree].
			</description>
		</method>
		<method name="set_shadow_atlas_quadrant_subdiv">
			<return type="void">
			</return>
			<argument index="0" name="quadrant" type="int">
			</argument>
			<argument index="1" name="subdiv" type="int" enum="Viewport.ShadowAtlasQuadrantSubdiv">
			</argument>
			<description>
				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.
			</description>
		</method>
		<method name="unhandled_input">
			<return type="void">
			</return>
			<argument index="0" name="event" type="InputEvent">
			</argument>
			<argument index="1" name="in_local_coords" type="bool" default="false">
			</argument>
			<description>
			</description>
		</method>
		<method name="update_worlds">
			<return type="void">
			</return>
			<description>
				Forces update of the 2D and 3D worlds.
			</description>
		</method>
		<method name="warp_mouse">
			<return type="void">
			</return>
			<argument index="0" name="to_position" type="Vector2">
			</argument>
			<description>
				Warps the mouse to a position relative to the viewport.
			</description>
		</method>
	</methods>
	<members>
		<member name="audio_listener_enable_2d" type="bool" setter="set_as_audio_listener_2d" getter="is_audio_listener_2d" default="false">
			If [code]true[/code], the viewport will process 2D audio streams.
		</member>
		<member name="audio_listener_enable_3d" type="bool" setter="set_as_audio_listener" getter="is_audio_listener" default="false">
			If [code]true[/code], the viewport will process 3D audio streams.
		</member>
		<member name="canvas_item_default_texture_filter" type="int" setter="set_default_canvas_item_texture_filter" getter="get_default_canvas_item_texture_filter" enum="Viewport.DefaultCanvasItemTextureFilter" default="1">
			Sets the default filter mode used by [CanvasItem]s in this Viewport. See [enum DefaultCanvasItemTextureFilter] for options.
		</member>
		<member name="canvas_item_default_texture_repeat" type="int" setter="set_default_canvas_item_texture_repeat" getter="get_default_canvas_item_texture_repeat" enum="Viewport.DefaultCanvasItemTextureRepeat" default="0">
			Sets the default repeat mode used by [CanvasItem]s in this Viewport. See [enum DefaultCanvasItemTextureRepeat] for options.
		</member>
		<member name="canvas_transform" type="Transform2D" setter="set_canvas_transform" getter="get_canvas_transform">
			The canvas transform of the viewport, useful for changing the on-screen positions of all child [CanvasItem]s. This is relative to the global canvas transform of the viewport.
		</member>
		<member name="debug_draw" type="int" setter="set_debug_draw" getter="get_debug_draw" enum="Viewport.DebugDraw" default="0">
			The overlay mode for test rendered geometry in debug purposes.
		</member>
		<member name="global_canvas_transform" type="Transform2D" setter="set_global_canvas_transform" getter="get_global_canvas_transform">
			The global canvas transform of the viewport. The canvas transform is relative to this.
		</member>
		<member name="gui_disable_input" type="bool" setter="set_disable_input" getter="is_input_disabled" default="false">
			If [code]true[/code], the viewport will not receive input event.
		</member>
		<member name="gui_embed_subwindows" type="bool" setter="set_embed_subwindows_hint" getter="get_embed_subwindows_hint" default="false">
		</member>
		<member name="gui_snap_controls_to_pixels" type="bool" setter="set_snap_controls_to_pixels" getter="is_snap_controls_to_pixels_enabled" default="true">
			If [code]true[/code], the GUI controls on the viewport will lay pixel perfectly.
		</member>
		<member name="handle_input_locally" type="bool" setter="set_handle_input_locally" getter="is_handling_input_locally" default="true">
		</member>
		<member name="msaa" type="int" setter="set_msaa" getter="get_msaa" enum="Viewport.MSAA" default="0">
			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.
		</member>
		<member name="own_world_3d" type="bool" setter="set_use_own_world_3d" getter="is_using_own_world_3d" default="false">
			If [code]true[/code], the viewport will use the [World3D] defined in [member world_3d].
		</member>
		<member name="physics_object_picking" type="bool" setter="set_physics_object_picking" getter="get_physics_object_picking" default="false">
			If [code]true[/code], the objects rendered by viewport become subjects of mouse picking process.
		</member>
		<member name="screen_space_aa" type="int" setter="set_screen_space_aa" getter="get_screen_space_aa" enum="Viewport.ScreenSpaceAA" default="0">
			Sets the screen-space antialiasing method used. Screen-space antialiasing works by selectively blurring edges in a post-process shader. It differs from MSAA which takes multiple coverage samples while rendering objects. Screen-space AA methods are typically faster than MSAA and will smooth out specular aliasing, but tend to make scenes appear blurry.
		</member>
		<member name="shadow_atlas_quad_0" type="int" setter="set_shadow_atlas_quadrant_subdiv" getter="get_shadow_atlas_quadrant_subdiv" enum="Viewport.ShadowAtlasQuadrantSubdiv" default="2">
			The subdivision amount of the first quadrant on the shadow atlas.
		</member>
		<member name="shadow_atlas_quad_1" type="int" setter="set_shadow_atlas_quadrant_subdiv" getter="get_shadow_atlas_quadrant_subdiv" enum="Viewport.ShadowAtlasQuadrantSubdiv" default="2">
			The subdivision amount of the second quadrant on the shadow atlas.
		</member>
		<member name="shadow_atlas_quad_2" type="int" setter="set_shadow_atlas_quadrant_subdiv" getter="get_shadow_atlas_quadrant_subdiv" enum="Viewport.ShadowAtlasQuadrantSubdiv" default="3">
			The subdivision amount of the third quadrant on the shadow atlas.
		</member>
		<member name="shadow_atlas_quad_3" type="int" setter="set_shadow_atlas_quadrant_subdiv" getter="get_shadow_atlas_quadrant_subdiv" enum="Viewport.ShadowAtlasQuadrantSubdiv" default="4">
			The subdivision amount of the fourth quadrant on the shadow atlas.
		</member>
		<member name="shadow_atlas_size" type="int" setter="set_shadow_atlas_size" getter="get_shadow_atlas_size" default="0">
			The shadow atlas' resolution (used for omni and spot lights). The value will be rounded up to the nearest power of 2.
			[b]Note:[/b] 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.
		</member>
		<member name="transparent_bg" type="bool" setter="set_transparent_background" getter="has_transparent_background" default="false">
			If [code]true[/code], the viewport should render its background as transparent.
		</member>
		<member name="world_2d" type="World2D" setter="set_world_2d" getter="get_world_2d">
			The custom [World2D] which can be used as 2D environment source.
		</member>
		<member name="world_3d" type="World3D" setter="set_world_3d" getter="get_world_3d">
			The custom [World3D] which can be used as 3D environment source.
		</member>
	</members>
	<signals>
		<signal name="gui_focus_changed">
			<argument index="0" name="node" type="Control">
			</argument>
			<description>
				Emitted when a Control node grabs keyboard focus.
			</description>
		</signal>
		<signal name="size_changed">
			<description>
				Emitted when the size of the viewport is changed, whether by resizing of window, or some other means.
			</description>
		</signal>
	</signals>
	<constants>
		<constant name="SHADOW_ATLAS_QUADRANT_SUBDIV_DISABLED" value="0" enum="ShadowAtlasQuadrantSubdiv">
			This quadrant will not be used.
		</constant>
		<constant name="SHADOW_ATLAS_QUADRANT_SUBDIV_1" value="1" enum="ShadowAtlasQuadrantSubdiv">
			This quadrant will only be used by one shadow map.
		</constant>
		<constant name="SHADOW_ATLAS_QUADRANT_SUBDIV_4" value="2" enum="ShadowAtlasQuadrantSubdiv">
			This quadrant will be split in 4 and used by up to 4 shadow maps.
		</constant>
		<constant name="SHADOW_ATLAS_QUADRANT_SUBDIV_16" value="3" enum="ShadowAtlasQuadrantSubdiv">
			This quadrant will be split 16 ways and used by up to 16 shadow maps.
		</constant>
		<constant name="SHADOW_ATLAS_QUADRANT_SUBDIV_64" value="4" enum="ShadowAtlasQuadrantSubdiv">
			This quadrant will be split 64 ways and used by up to 64 shadow maps.
		</constant>
		<constant name="SHADOW_ATLAS_QUADRANT_SUBDIV_256" value="5" enum="ShadowAtlasQuadrantSubdiv">
			This quadrant will be split 256 ways and used by up to 256 shadow maps. Unless the [member shadow_atlas_size] is very high, the shadows in this quadrant will be very low resolution.
		</constant>
		<constant name="SHADOW_ATLAS_QUADRANT_SUBDIV_1024" value="6" enum="ShadowAtlasQuadrantSubdiv">
			This quadrant will be split 1024 ways and used by up to 1024 shadow maps. Unless the [member shadow_atlas_size] is very high, the shadows in this quadrant will be very low resolution.
		</constant>
		<constant name="SHADOW_ATLAS_QUADRANT_SUBDIV_MAX" value="7" enum="ShadowAtlasQuadrantSubdiv">
			Represents the size of the [enum ShadowAtlasQuadrantSubdiv] enum.
		</constant>
		<constant name="MSAA_DISABLED" value="0" enum="MSAA">
			Multisample antialiasing mode disabled. This is the default value, and also the fastest setting.
		</constant>
		<constant name="MSAA_2X" value="1" enum="MSAA">
			Use 2x Multisample Antialiasing.
		</constant>
		<constant name="MSAA_4X" value="2" enum="MSAA">
			Use 4x Multisample Antialiasing.
		</constant>
		<constant name="MSAA_8X" value="3" enum="MSAA">
			Use 8x Multisample Antialiasing. Likely unsupported on low-end and older hardware.
		</constant>
		<constant name="MSAA_16X" value="4" enum="MSAA">
			Use 16x Multisample Antialiasing. Likely unsupported on medium and low-end hardware.
		</constant>
		<constant name="MSAA_MAX" value="5" enum="MSAA">
			Represents the size of the [enum MSAA] enum.
		</constant>
		<constant name="SCREEN_SPACE_AA_DISABLED" value="0" enum="ScreenSpaceAA">
			Do not perform any antialiasing in the full screen post-process.
		</constant>
		<constant name="SCREEN_SPACE_AA_FXAA" value="1" enum="ScreenSpaceAA">
			Use fast approximate antialiasing. FXAA is a popular screen-space antialiasing method, which is fast but will make the image look blurry, especially at lower resolutions. It can still work relatively well at large resolutions such as 1440p and 4K.
		</constant>
		<constant name="SCREEN_SPACE_AA_MAX" value="2" enum="ScreenSpaceAA">
			Represents the size of the [enum ScreenSpaceAA] enum.
		</constant>
		<constant name="RENDER_INFO_OBJECTS_IN_FRAME" value="0" enum="RenderInfo">
			Amount of objects in frame.
		</constant>
		<constant name="RENDER_INFO_VERTICES_IN_FRAME" value="1" enum="RenderInfo">
			Amount of vertices in frame.
		</constant>
		<constant name="RENDER_INFO_MATERIAL_CHANGES_IN_FRAME" value="2" enum="RenderInfo">
			Amount of material changes in frame.
		</constant>
		<constant name="RENDER_INFO_SHADER_CHANGES_IN_FRAME" value="3" enum="RenderInfo">
			Amount of shader changes in frame.
		</constant>
		<constant name="RENDER_INFO_SURFACE_CHANGES_IN_FRAME" value="4" enum="RenderInfo">
			Amount of surface changes in frame.
		</constant>
		<constant name="RENDER_INFO_DRAW_CALLS_IN_FRAME" value="5" enum="RenderInfo">
			Amount of draw calls in frame.
		</constant>
		<constant name="RENDER_INFO_MAX" value="6" enum="RenderInfo">
			Represents the size of the [enum RenderInfo] enum.
		</constant>
		<constant name="DEBUG_DRAW_DISABLED" value="0" enum="DebugDraw">
			Objects are displayed normally.
		</constant>
		<constant name="DEBUG_DRAW_UNSHADED" value="1" enum="DebugDraw">
			Objects are displayed without light information.
		</constant>
		<constant name="DEBUG_DRAW_LIGHTING" value="2" enum="DebugDraw">
		</constant>
		<constant name="DEBUG_DRAW_OVERDRAW" value="3" enum="DebugDraw">
			Objects are displayed semi-transparent with additive blending so you can see where they are drawing over top of one another. A higher overdraw means you are wasting performance on drawing pixels that are being hidden behind others.
		</constant>
		<constant name="DEBUG_DRAW_WIREFRAME" value="4" enum="DebugDraw">
			Objects are displayed in wireframe style.
		</constant>
		<constant name="DEBUG_DRAW_NORMAL_BUFFER" value="5" enum="DebugDraw">
		</constant>
		<constant name="DEBUG_DRAW_GI_PROBE_ALBEDO" value="6" enum="DebugDraw">
			Objects are displayed with only the albedo value from [GIProbe]s.
		</constant>
		<constant name="DEBUG_DRAW_GI_PROBE_LIGHTING" value="7" enum="DebugDraw">
			Objects are displayed with only the lighting value from [GIProbe]s.
		</constant>
		<constant name="DEBUG_DRAW_GI_PROBE_EMISSION" value="8" enum="DebugDraw">
			Objects are displayed with only the emission color from [GIProbe]s.
		</constant>
		<constant name="DEBUG_DRAW_SHADOW_ATLAS" value="9" enum="DebugDraw">
			Draws the shadow atlas that stores shadows from [OmniLight3D]s and [SpotLight3D]s in the upper left quadrant of the [Viewport].
		</constant>
		<constant name="DEBUG_DRAW_DIRECTIONAL_SHADOW_ATLAS" value="10" enum="DebugDraw">
			Draws the shadow atlas that stores shadows from [DirectionalLight3D]s in the upper left quadrant of the [Viewport].
		</constant>
		<constant name="DEBUG_DRAW_SCENE_LUMINANCE" value="11" enum="DebugDraw">
		</constant>
		<constant name="DEBUG_DRAW_SSAO" value="12" enum="DebugDraw">
			Draws the screen-space ambient occlusion texture instead of the scene so that you can clearly see how it is affecting objects. In order for this display mode to work, you must have [member Environment.ssao_enabled] set in your [WorldEnvironment].
		</constant>
		<constant name="DEBUG_DRAW_PSSM_SPLITS" value="13" enum="DebugDraw">
			Colors each PSSM split for the [DirectionalLight3D]s in the scene a different color so you can see where the splits are. In order, they will be colored red, green, blue, and yellow.
		</constant>
		<constant name="DEBUG_DRAW_DECAL_ATLAS" value="14" enum="DebugDraw">
			Draws the decal atlas used by [Decal]s and light projector textures in the upper left quadrant of the [Viewport].
		</constant>
		<constant name="DEBUG_DRAW_SDFGI" value="15" enum="DebugDraw">
		</constant>
		<constant name="DEBUG_DRAW_SDFGI_PROBES" value="16" enum="DebugDraw">
		</constant>
		<constant name="DEBUG_DRAW_GI_BUFFER" value="17" enum="DebugDraw">
		</constant>
		<constant name="DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_NEAREST" value="0" enum="DefaultCanvasItemTextureFilter">
			The texture filter reads from the nearest pixel only. The simplest and fastest method of filtering, but the texture will look pixelized.
		</constant>
		<constant name="DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_LINEAR" value="1" enum="DefaultCanvasItemTextureFilter">
			The texture filter blends between the nearest 4 pixels. Use this when you want to avoid a pixelated style, but do not want mipmaps.
		</constant>
		<constant name="DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_LINEAR_WITH_MIPMAPS" value="2" enum="DefaultCanvasItemTextureFilter">
			The texture filter reads from the nearest pixel in the nearest mipmap. The fastest way to read from textures with mipmaps.
		</constant>
		<constant name="DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_NEAREST_WITH_MIPMAPS" value="3" enum="DefaultCanvasItemTextureFilter">
			The texture filter blends between the nearest 4 pixels and between the nearest 2 mipmaps.
		</constant>
		<constant name="DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_MAX" value="4" enum="DefaultCanvasItemTextureFilter">
			Max value for [enum DefaultCanvasItemTextureFilter] enum.
		</constant>
		<constant name="DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_DISABLED" value="0" enum="DefaultCanvasItemTextureRepeat">
			Disables textures repeating. Instead, when reading UVs outside the 0-1 range, the value will be clamped to the edge of the texture, resulting in a stretched out look at the borders of the texture.
		</constant>
		<constant name="DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_ENABLED" value="1" enum="DefaultCanvasItemTextureRepeat">
			Enables the texture to repeat when UV coordinates are outside the 0-1 range. If using one of the linear filtering modes, this can result in artifacts at the edges of a texture when the sampler filters across the edges of the texture.
		</constant>
		<constant name="DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_MIRROR" value="2" enum="DefaultCanvasItemTextureRepeat">
			Flip the texture when repeating so that the edge lines up instead of abruptly changing.
		</constant>
		<constant name="DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_MAX" value="3" enum="DefaultCanvasItemTextureRepeat">
			Max value for [enum DefaultCanvasItemTextureRepeat] enum.
		</constant>
	</constants>
</class>