Handles

class in UnityEditor

Description

Custom 3D GUI controls and drawing in the Scene view.

Handles are the 3D controls that Unity uses to manipulate items in the Scene view. There are a number of built-in Handle GUIs, such as the familiar tools to position, scale and rotate an object via the Transform component. However, it is also possible to define your own Handle GUIs to use with custom component editors. Such GUIs can be a very useful way to edit procedurally-generated Scene content, "invisible" items and groups of related objects, such as waypoints and location markers.

You can also supplement the 3D Handle GUI in the Scene with 2D buttons and other controls overlaid on the Scene view. This is done by enclosing standard Unity GUI calls in a Handles.BeginGUI and Handles.EndGUI pair within the Editor.OnSceneGUI function. You can use HandleUtility.GUIPointToWorldRay and HandleUtility.WorldToGUIPoint to convert coordinates between 2D GUI and 3D world coordinates.

Static Properties

centerColor	Color to use for handles that represent the center of something.
color	Colors of the handles.
inverseMatrix	The inverse of the matrix for all handle operations.
lighting	Are handles lit?
matrix	Matrix for all handle operations.
preselectionColor	Color to use to highlight an unselected handle currently under the mouse pointer.
secondaryColor	Soft color to use for for general things.
selectedColor	Color to use for the currently active handle.
xAxisColor	Color to use for handles that manipulates the X coordinate of something.
yAxisColor	Color to use for handles that manipulates the Y coordinate of something.
zAxisColor	Color to use for handles that manipulates the Z coordinate of something.
zTest	zTest of the handles.

Properties

currentCamera

Setup viewport and stuff for a current camera.

Static Methods

ArrowHandleCap	Draw an arrow like those used by the move tool.
BeginGUI	Begin a 2D GUI block inside the 3D handle GUI.
Button	Make a 3D Button.
CircleHandleCap	Draw a circle handle. Pass this into handle functions.
ClearCamera	Clears the camera.
ConeHandleCap	Draw a cone handle. Pass this into handle functions.
CubeHandleCap	Draw a cube handle. Pass this into handle functions.
CylinderHandleCap	Draw a cylinder handle. Pass this into handle functions.
Disc	Make a 3D disc that can be dragged with the mouse.
DotHandleCap	Draw a dot handle. Pass this into handle functions.
DrawAAConvexPolygon	Draw anti-aliased convex polygon specified with point array.
DrawAAPolyLine	Draw anti-aliased line specified with point array and width.
DrawBezier	Draw textured bezier line through start and end points with the given tangents.
DrawCamera	Draws a camera inside a rectangle.
DrawDottedLine	Draw a dotted line from p1 to p2.
DrawDottedLines	Draw a list of dotted line segments.
DrawGizmos	Draw a subset of Gizmos (before or after postprocessing) for the given camera.
DrawLine	Draw a line from p1 to p2.
DrawLines	Draw a list of line segments.
DrawPolyLine	Draw a line going through the list of points.
DrawSelectionFrame	Draw a camera facing selection frame.
DrawSolidArc	Draw a circular sector (pie piece) in 3D space.
DrawSolidDisc	Draw a solid flat disc in 3D space.
DrawSolidRectangleWithOutline	Draw a solid outlined rectangle in 3D space.
DrawWireArc	Draw a circular arc in 3D space.
DrawWireCube	Draw a wireframe box with center and size.
DrawWireDisc	Draw the outline of a flat disc in 3D space.
EndGUI	End a 2D GUI block and get back to the 3D handle GUI.
FreeMoveHandle	Make an unconstrained movement handle.
FreeRotateHandle	Make an unconstrained rotation handle.
GetMainGameViewSize	Get the width and height of the main game view.
Label	Make a text label positioned in 3D space.
MakeBezierPoints	Retuns an array of points to representing the bezier curve.
PositionHandle	Make a position handle.
RadiusHandle	Make a Scene view radius handle.
RectangleHandleCap	Draw a rectangle handle. Pass this into handle functions.
RotationHandle	Make a Scene view rotation handle.
ScaleHandle	Make a Scene view scale handle.
ScaleSlider	Make a directional scale slider.
ScaleValueHandle	Make a 3D handle that scales a single float.
SetCamera	Set the current camera so all Handles and Gizmos are draw with its settings.
ShouldRenderGizmos	Determines whether or not to draw Gizmos.
Slider	Make a 3D slider that moves along one axis.
Slider2D	Make a 3D slider that moves along a plane defined by two axes.
SnapToGrid	Rounds each Transform.position to the closest multiple of EditorSnap.move.
SnapValue	Rounds value to the closest multiple of snap if snapping is active. Note that snap can only be positive.
SphereHandleCap	Draw a sphere handle. Pass this into handle functions.
TransformHandle	Creates a transform handle.

Delegates

CapFunction	The function to use for drawing the handle e.g. Handles.RectangleCap.
SizeFunction	A delegate type for getting a handle's size based on its current position.

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