Description

ImportAlias Addon for Blender converts Alias NURBS data to meshes and imports it into Blender.

From Alias

To Blender.

System Requirements

  • Blender version newer than 3.0.0
  • Alias version 2023.1 or newer should be installed. Use the legacy version of the addon for older versions of Alias.
  • Use ImportAlias_2027 addon if Alias 2027.0.1 or newer is installed.

Installation

The addon is a ZIP file. Do not unzip the file prior to installation.

Blender 4.2 and newer:

  • Drag and Drop the zip file into Blender.

Blender 4.1 and older:

  • Install the downloaded addon using Edit->Preferences->Install and choose the downloaded ZIP file.
  • Enable the addon.

Addon Preference:

This is specifically for ImportAlias_2027 version:

ImportAlias_2027 Pref

  • Product key: For Alias Autostudio this value should be "966S1" for Alias Surface should be "736S1"
  • Version: For Alias 2027 install this should be "2027.0.0.F"
  • License Type: For User Subscription this should be "USER". For Network license this should be "NW". For Stand Alone this should be "SA" and for Multi User Stand alone this should be "MSSA"
  • License Path: Please select the file named "License" in the bin directory of Alias install location.

Please contact Autodesk Alias Support if you are not sure about these values.

Usage:

The menu is installed under File->Import

Import Options:

  • Meshes: Imports mesh data from Alias (default off)
  • Curvers: Import NURBS Curves as NURBS Curves (default off)
  • Subdivs: Imports Alias Subdiv data as susubdivision data (default on). Currently creases are not supported. If disabled, the subdiv data limit surface is converted to mesh and imported into Blender.
  • Tolerance: Controls the deviation between the NURBS and Meshes. The lesser the value, the finer the mesh (default = 0.01)
  • Autoflip Normals: Automatically flip normals to point outward. (default: off)
  • Merge meshes: Automatically merge meshes in each collections. (default: off)

Limitations

  • The Autoflip normals options attempts to make the mesh normals consistant to point outward and might not correct all the normals. Ideally the surface normals should be checked and corrected in Alias.
  • In Autodesk Alias 2023 a new adjust crease functionality was introduced and is not compatible with general subdivision algorithms. Such creases, will be transfered as constant creases. Switch on the mesh Autosmooth option, for the creases to appear sharp. (GPU acceleration for subd will be switched off in that case).
  • The addon will not work if the Alias 2016 Learning Edition is installed. Please install a previous version of Learning edition or a regular version of Alias.
  • For Alias 2027.0.1 use ImportAlias_2027 version. The add-on will not work with Alias 2027.0!

Downloads:

Single User:

Corporate Users:

Video:

ImportAlias 2027 Addon

Version History

v 1.0.0:

  • Initial release.

v 1.1.0:

  • Added Support for subdivision creases.
  • Added support for auto flip normals

v 1.3.0

  • Added Support for Construction Entities.

v 1.4.0

  • Added Support for Blender 4.0

v 1.6.0

  • Added Support for Rational Curves
  • Added Support for Blender 4.1

v 1.7.0

  • BugFix: Crash when some geometry fails to tesselate.

v 1.8.0

  • BugFix: Alias Layer name and/or object name is more than 63 chacters long, the translation stalls.

v 1.9.0

  • Enhancement: Support for Blender Extension

v 2.0.0

  • Enhancenment: Better color matching between Alias Shader and Blender Material

  • Enhancenment: Progress bar

v 2.0.1

  • Bug Fix: Crash while trying to import corrupt meshes, if the Blender version is newer than 4.2

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