form·Z 5.0 includes a variety of new features and also incorporates version 4.5, which was only released to a group of beta testers and plugin developers. V. 4.5, first and foremost, offered the new API technology and script language of form·Z. During the beta testing effort, many features initially planned for v. 5.0 were also completed.This development led to the release of v. 5.0 simultaneously with v. 4.5.

form·Z 5.0 is the first native OS X version and represents the end of support for the classic MacOS operating system. It requires OS X 10.2 or later. It also supports Windows XP, 2000, NT, ME and 98. Windows 95 is no longer supported.

Application Programming Interface
and form·Z Script Language

The API technology and the script language of form·Z are both methods that invite the user to develop his or her own extensions to the program. This can be done either through a plugin that is developed outside of form·Z or through a script that is developed using form·Z's own editing environment.

A plugin is written in the C or C++ computer language and is compiled into a binary library. A script is written in the form·Z script language (FSL), which is a simplified version of the C language. It is intended for a novice programmer who may get started with adding extensions to form·Z without having to set up a complete C or C++ based development environment. Once a script has been written, it is generally fairly straightforward to convert the FSL code of the script to real C or C++ code for use in a plugin.

The form·Z API provides access to much of the form·Z functionality including modeling operations, interface elements, data access, memory management and math functions. The API supports nine types of extensions: custom attributes, file translators, object types, renderers, commands, palettes, RenderZone shaders, tools, and utilities. All of these are available for plugin development. The latter five are also available for scripts. The API includes over 3,000 functions which are explained through an HTML based on line documentation and a PDF based developer guide. The form·Z 5.0 package contains a number of ready to run examples for scripts and plugins that are expected to prove valuable as learning resources. auto.des.sys expects that savvy users will take full advantage of the plug-in and scripting capabilities to add their unique personal enhancements to the power of form·Z.

Interface

• The functionality of the Paste From Modeling... and Paste From Drafting commands in the Edit menu have been expanded and the ability to transfer information directly from one window to another (without going through the clipboard) is now provided, through a newly introduced list of windows where selections can be made.

• The Select By... item of the Edit menu has been extended with more categories for selection, the ability to define multiple selection sets, and the ability to save the selection criteria with a project.

• The font support in form·Z has been improved and is now more compatible with the font control supported by third party software and the operating systems. This has affected the Project: Fonts options set in the Preferences dialog invoked from the Edit menu.

• OpenGL renderings that are produced by the Interactive Shaded item of the Display menu, now have the ability to include Shadows and are much more interactive as they are executed smoothly in real time.	• A new line renderer, called Doodle, has been introduced in the Display menu. It produces line drawings that look like quick hand-drawn sketches.
An Interactive Shaded rendering with and without shadows.	Hidden line based Doodle renderings using different default styles

Paraboloid, Single hyperboloid, Double hyperboloid, Hyperbolic paraboloid	• Four new primitives of ruled parametric surfaces have been introduced: paraboloid, single hyperboloid, double hyperboloid, and hyperbolic paraboloid.
Star objects created from different base types	• The Star tool, which is a plugin, has been introduced in the Balls palette. It produces 3D solid stars.
Frame objects	• A new plugin, the Frame tool, has been added. It derives frame like structures by converting the edges of an object into round beams and its vertices into spheres, all of which are unioned together into a single solid. • A new plugin tool that generates new detailed screws/bolts has been introduced next to the previous screws/bolts. Gear teeth with pressure angle at various degrees • A new plugin tool that generates accurate gears has been introduced.
Draft Sweeping a circle along a helix using predefined functions sine, cosine, half-sine, and half-cosine.	• Two new options have been added to the Sweep tool: the ability to join coplanar faces and the ability to generate axial and two-source sweeps from source shapes that are already positioned at the end or ends of a path. • A new type of sweep, called draft sweep, has been introduced. It generates sweep objects using draft angles and mathematical formulas, which drastically extends the repertoire of the sweeps.

Examples of predefined formula surfaces

• A new Formula Surface tool has been added and offers the ability to generate surface objects from standard formulas as well as a variety of well known mathematical types, such as Mobius Strip, Catalan, Catenoid Helicoid, Enneper, Henneberg, Monkey Saddle, Whitney Umbrella, Steinbach Screw, and Shoe Surface. It also allows a user to generate a custom defined surface from his/her own formula.

• Stitches produced by the Trim/Split and Stitch tools can now be smoothly rounded in addition to the previously available polygonal rounding.

• Smooth parametric text can now be generated by the Text Place tool, in addition to the previously available polygonal text. The importation and management of the text fonts has also been drastically simplified.

• The Query Attributes dialog has been significantly extended and revised to accommodate the newly introduced attribute types.

• Two new tools, Object Doctor and Project Doctor, have been introduced. They either simply detect irregularities found on an object or project, or they repair them, whenever possible. The option to preview the irregularities in a preview dialog is also available.

• Objects can now be cloned when copied and placed. Cloned objects follow the behavior of one of their members, when operations, such as geometric transformations, are applied to it. Information about clones is now offered in the Query Object dialog and a new tool, called Unclone, has also been implemented and is useful for undoing cloning.

• A new Replace tool now makes it possible to easily replace groups of objects with a single operation. This facilitates the use of low resolution objects as place holders during early stages of model development, which can then be easily replaced with the real detailed objects at the end of the process.

• A new Copy Attributes tool has been introduced and can be used to selectively copy many attributes from one object to one or more other objects.

A scene rendered five times, each time with a different environment light.