2013.06

Language Features:

• linear_extrude now takes a scale parameter: linear_extrude(height=a, slices=b, twist=c, scale=[x,y])
• Recursive use of modules is now supported (including cascading child() operations): https://github.com/openscad/openscad/blob/master/examples/example024.scad
• Parameter list values can now depend on earlier values, e.g. for (i=[0:2], j=[0:i]) ..
• value assignments in parameters can now depend on already declared parameters
• Added resize() module: http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Transformations#resize

Program Features:

• Added basic syntax highlighting in the editor
• There is now a built-in library path in user-space: http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Libraries#Library_Locations
• Commandline output to PNG, with various camera and rendering settings.
  Run openscad -h to see usage info or see the OpenSCAD wiki user manual.
• Attempting to open dxf, off or stl files in the GUI will now create an import statement.
• The preview operator (%) will now preserve any manually set color
• The highlight operator (#) will now color the object in transparent red
• Mac: Added document icon
• Mac: Added auto-update check
• Windows: Better cmd-line support using the openscad.com executable

Bugfixes:

• Importing files is now always relative to the importing script, also for libraries
• We didn't always print a warning when CSG normalization created too many elements
• Binary STLs can now be read on big endian architectures
• Some binary STLs couldn't be read
• Fixed some issues related to ARM builds
• CGAL triangulation more lenient- enables partial rendering of 'bad' DXF data
• The Automatic Reload feature is now more robust
• If a file couldn't be saved it no longer fails silently
• Fixed a number of crashes related to CGAL and OpenCSG rendering or complex models
• The lookup() function had bad boundary condition behavior
• The surface() module failed when the .dat file lacked a trailing newline
• The hull() module could crash if any of the children were empty objects
• Some problems using unicode filenames have been fixed

Misc:

• Build scripts have been further improved
• Regression test now creates single monolithic .html file for easier uploading
• Regression test auto-starts & stops Xvfb / Xvnc if on headless unix machine
• The backend is finally independent of Qt
• Windows: We now have a 64-bit version

Known Bugs:

• Linux: command-line png rendering on Gallium is flaky. Workaround: use CGAL --render or hardware rendering.