3DS Max

Main screen of 3DS Max

3DS Max is produced by Autodesk : 3DS MAX

Bring 3D film effects to the big screen. Generate realistic characters for a top-selling game. Create rich and complex design visualization. Autodesk® 3ds Max® 9 3D animation, rendering and modeling software lets game developers, design visualization professionals, and visual effects artists maximize their productivity and tackle challenging animation projects. Extract from Autodesk website linked above

Widgets

In 3DS Max, I found a selection of tools with a few similar to those found in vtk. Here, they are referred to as Helpers. There are a number of helpers, under 8 headings.

Helpers

Standard

Standard helpers provided in 3DS Max.

Standard helpers

Dummy	A Dummy helper object is a wireframe cube with a pivot point at its geometric center. The dummy object can be linked to multiple other objects and be used as a center of rotation. Rotate the dummy and all linked objects rotate in the same manner. Another use is to link acamera and its target to the dummy, and animate the dummy, the target camera will follow the dummy.
Delegate	The Delegate is a special helper object used in crowd animation. It serves as an agent for motion created by a Crowd object and its behaviors. The Crowd object controls a delegate or delegates, whose motion can then be imparted to a biped or other object. Delegates cannot be rendered.
Grid	The grid, also called User Grid or Custom Grid, is a 2D parametric object with adjustments for overall size and grid spacing. You can move and orient user grids anywhere in world space.
Tape	Tape provides an on-screen "tape measure" for determining and setting distances.
Compass	The orientation of the compass indicates the orientation of the scene.
Crowd	The Crowd helper object acts as the command center for controlling crowd simulations.
ExposeTm	The Expose Transform helper exposes values of non-keyed objects for use in expressions and scripts.
Point	Point provides a specific location in 3D space that can be used as a reference or by other program functions.
Protractor	Protractor measures the angle between a point and any two objects in your scene.

Atmospheric Apparatus

Atmospheric apparatuses or gizmos: a box, a cylinder, or a sphere, used to limit the spread of fog or fire in your scene.

BoxGizmo Helper

BoxGizmo lets you create a box-shaped gizmo in your scene. Clicking the BoxGizmo button displays the Box Gizmo Parameters rollout

CylGizmo Helper

CylGizmo lets you create a cylinder-shaped gizmo in your scene. Clicking the CylGizmo button displays the Cylinder Gizmo Parameters rollout.

SphereGizmo Helper

SphereGizmo lets you create a sphere- or hemisphere-shaped gizmo in your scene. Clicking the SphereGizmo button displays the Sphere Gizmo Parameters rollout.

Manipulators

Manipulator helpers are objects you can create to manipulate other objects.

Cone Angle Manipulator	The Cone Angle manipulator is a cone whose base you can adjust. By wiring its Angle value to a parameter of another object, you can create a custom control, with visual feedback, within a scene.
Plane Angle Manipulator	The Plane Angle manipulator looks like a lever or joystick. By wiring its Angle value to a parameter of another object, you can create a custom control, with visual feedback, within a scene.
Slider Manipulator	The Slider manipulator is a graphic control that appears in the active viewport. By wiring its Value to a parameter of another object, you can create a custom control, with visual feedback, within a scene.