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Inherited By: ParallaxBackground
A node used for independent rendering of objects within a 2D scene.
CanvasItem-derived nodes that are direct or indirect children of a CanvasLayer will be drawn in that layer. The layer is a numeric index that defines the draw order. The default 2D scene renders with index
0, so a CanvasLayer with index
-1 will be drawn below, and a CanvasLayer with index
1 will be drawn above. This order will hold regardless of the CanvasItem.z_index of the nodes within each layer.
CanvasLayers can be hidden and they can also optionally follow the viewport. This makes them useful for HUDs like health bar overlays (on layers
1 and higher) or backgrounds (on layers
-1 and lower).
Note: Each CanvasLayer is drawn on one specific Viewport and cannot be shared between multiple Viewports, see custom_viewport. When using multiple Viewports, for example in a split-screen game, you need create an individual CanvasLayer for each Viewport you want it to be drawn on.
get_canvas ( ) const
get_final_transform ( ) const
hide ( )
show ( )
visibility_changed ( )
Emitted when visibility of the layer is changed. See visible.
The custom Viewport node assigned to the CanvasLayer. If
null, uses the default viewport instead.
bool follow_viewport_enabled =
If enabled, the CanvasLayer will use the viewport's transform, so it will move when camera moves instead of being anchored in a fixed position on the screen.
Together with follow_viewport_scale it can be used for a pseudo 3D effect.
float follow_viewport_scale =
Scales the layer when using follow_viewport_enabled. Layers moving into the foreground should have increasing scales, while layers moving into the background should have decreasing scales.
int layer =
Layer index for draw order. Lower values are drawn behind higher values.
Note: If multiple CanvasLayers have the same layer index, CanvasItem children of one CanvasLayer are drawn behind the CanvasItem children of the other CanvasLayer. Which CanvasLayer is drawn in front is non-deterministic.
Vector2 offset =
The layer's base offset.
float rotation =
The layer's rotation in radians.
Vector2 scale =
The layer's scale.
Transform2D transform =
Transform2D(1, 0, 0, 1, 0, 0)
The layer's transform.
bool visible =
false, any CanvasItem under this CanvasLayer will be hidden.
Unlike CanvasItem.visible, visibility of a CanvasLayer isn't propagated to underlying layers.
RID get_canvas ( ) const
Returns the RID of the canvas used by this layer.
Transform2D get_final_transform ( ) const
Returns the transform from the CanvasLayers coordinate system to the Viewports coordinate system.
void hide ( )
void show ( )