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CHANGELOG.md

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1.5.1 (2022-05-07)

  • Add implicit detail/smoothing, color/texture, position/orientation/size and font options to custom blocks
  • Logical and/or expressions now short circuit (don't evaluate their second parameter unless needed)
  • Added support for creating MaterialProperty from SCNMaterials using NS/UIImage
  • Fixed setting camera position on locked documents (such as the Example projects)
  • Added slightly stronger type safety when calling commands
  • Fixed axes contrast when using per-camera backgrounds
  • Fixed font inheritance for user-defined blocks
  • Added custom fonts to model info display
  • Added USDZ to list of supported export types
  • Improved iOS compatibility

1.5.0 (2022-04-29)

  • Added support for custom light sources using the light command
  • Added user-defined functions/commands (previously only blocks could be defined)
  • The width and/or height for exported images can now be set on a per-camera basis
  • Added polygon command for more easily creating regular polygon paths
  • The scene background can now be set individually for each camera
  • Using position, orientation and size inside a path now works again (broken since 1.4.4)
  • Using rnd command in option default expressions no longer has a knock-on effect on the sequence
  • Options can now reference local constants in their default values
  • Material brightness logic used in Viewer app is now part of the ShapeScript core
  • Using wrapwidth or linespacing text commands inside an svgpath block now raises an error
  • Fixed blank screen when scene contains empty camera node
  • Removed StatementType.block case in favor of expression form
  • Fixed some bugs in path generation relating to point colors
  • The OSColor typealias is now private
  • Added SVGPath dependency

1.4.7 (2022-04-14)

  • Camera is no longer reset on every reload
  • Fixed camera snapback if moved during initial model load
  • Added smoothing command for controlling surface normal generation
  • Disallowed used of detail and font commands in scopes where they have no effect
  • The svgpath command now works on Linux
  • Bumped Euclid to version 0.5.20

1.4.6 (2022-04-08)

  • Fixed svgpath command (broken in 1.4.5)
  • Fixed bug where axes were rendered in the wrong color
  • Watertight status is now displayed in object info panel
  • The roundrect command now works on Linux
  • Bumped LRUCache to version 1.0.3
  • Bumped Euclid to version 0.5.18

1.4.5 (2022-03-07)

  • Added support for setting per-vertex colors in a path
  • Font, text color and linespacing can now be specified per-line within a text block
  • Fixed underestimated bounds calculation for extrusion along a path
  • Made logic for child count calculation more consistent
  • Bumped Euclid to version 0.5.17

1.4.4 (2021-01-21)

  • Fixed infinite recursion crash when a shape file tries to import itself
  • Improved error message when imported model file is not readable
  • Fixed assertion failure when evaluating imported block due to source confusion
  • Added stricter symbol checking in stdlib so, e.g. name can't be used inside a path
  • Fixed bug in viewer where examples always open in orthographic mode
  • Imported gifs are now counted as textures rather than models in info panel
  • Model type is now displayed correctly in info panel
  • Fixed some iOS compatibility issues

1.4.3 (2021-12-25)

  • ShapeScript will now attempt to ensure generated meshes are watertight by default
  • Fixed unintended behavior change with blocks returning multiple shapes (introduced in 1.3.7)
  • Fixed precondition failure when calling a block from inside a path command
  • Camera nodes are no longer included in object count in model info
  • Handle repeated parameter lists without command tokens in svgpath
  • Added additional svgpath error handling
  • Bumped Euclid to version 0.5.15

1.4.2 (2021-12-10)

  • The svgpath command now supports arc instructions ('A' and 'a')
  • Fixed bug in svgpath affecting absolute horizontal ('H') and vertical ('V') lines
  • Save panel in viewer now adds .shape extension to file name if not present
  • Made online documentation link logic more robust

1.4.1 (2021-11-22)

  • Fixed bug where along property was ignored in extrude command
  • Fixed wireframe rendering mode in viewer

1.4.0 (2021-11-03)

  • Added user-defined cameras
  • Added boolean constants and operators
  • Added comparison operators (greater than, equals, etc)
  • Added if/else statements
  • Added assert command
  • Improved suggestions for mistyped operators
  • Replaced range expression with separate to and step operators
  • Failure to load an external model now displays an error instead of failing silently
  • Added distinct error type for invalid text escape sequences
  • Simplified identifier expression representation
  • Converted option keyword to contextual keyword
  • Added Geometry.worldTransform property

1.3.10 (2021-11-01)

  • DAE files containing triangle strips or non-triangular polygons are now loaded correctly
  • Fixed empty Geometry names not being set to nil
  • Fixed broken footer links in help pages
  • Bumped Euclid to version 0.5.14

1.3.9 (2021-10-22)

  • Added multiple camera options
  • Added orthographic view option
  • Reorganized camera menu and keyboard shortcuts
  • View settings are now saved per-document instead of globally
  • Fixed bug where camera would reset when toggling wireframe mode
  • Documents now open in tabs automatically when tab bar is shown

1.3.8 (2021-10-10)

  • Added svgpath command for creating paths using SVG-compatible syntax
  • Added bounds member property for calculating dimensions of complex shapes
  • Added wrapwidth and linespacing options for text
  • Improved debug command behavior for children of CSG containers
  • Fixed bug when setting background color with a single number (e.g. 0 for black)
  • Fixed bug where only first expression argument was highlighted in a type-mismatch error

1.3.7 (2021-09-26)

  • Added debug command for highlighting invisible geometry
  • Custom blocks can now return any value type, not just meshes or paths
  • Infix expressions are now handled correctly when used in a statement position
  • Improved type mismatch error messages for block parameters
  • String values are no longer nullable and empty strings are handled more correctly
  • Nested command calls without parentheses are now handled correctly
  • Improved type reporting for single-value tuples in error messages
  • Updated print behavior to better match text interpolation

1.3.6 (2021-09-21)

  • Added text interpolation, allowing text strings to be constructed dynamically
  • Import and textures file paths can now be constructed dynamically
  • Alpha component of colors can now be overridden with a convenient syntax
  • Removed confusing references to "string" and "identifier" from error messages
  • Added ability to load text fonts from a file name or path
  • Fixed bug where font getter returned texture instead
  • Improved help documentation

1.3.5 (2021-09-19)

  • Numbers can now be used in text blocks
  • Fixed bug with times/divide operator associativity
  • Fixed default zoom level in viewer when axes are shown
  • Fixed bug in scene bounds calculation when children have a transform applied
  • Improved error message for missing files specified by full path
  • Limited maximum lineWidth when rendering paths

1.3.4 (2021-09-17)

  • The position/size/orientation options can now be used inside text blocks
  • Fixed parsing error when using inline expressions in loop range
  • Unsupported string escape sequences are now treated as an error
  • Command parameters are now included in assertion failure error highlighting
  • Fixed bug with sequential escape sequences in text

1.3.3 (2021-09-14)

  • Fixed crash when font is set to an empty string
  • Fixed incorrect suggestion of option for typos in contexts where it isn't available
  • Print logging in a long/infinite loop no longer freezes UI
  • Help index is now generated automatically
  • Improved help for colors and text

1.3.2 (2021-09-13)

  • Added stack overflow detection, preventing crashes due to infinite recursion
  • Added support for underscores in identifiers
  • Empty and single-element tuples are now permitted (useful in loops and data structures)
  • Looping over vector, size and color values is no longer permitted (only tuples and ranges)
  • Geometry Hashable implementation is now based on value rather than reference
  • Bumped Euclid to 0.5.12, which fixes the getters for Rotation.pitch/yaw/roll
  • Shape position/orientation/size are now read/write properties instead of setters
  • Wireframes are now rendered with polygons instead of lines on x86, for better quality
  • Added open/create document prompt when opening app
  • Improved Welcome view

1.3.1 (2021-09-07)

  • Disabled axes by default and added instructions for enabling to help
  • Added ordinal members for accessing arbitrary tuple elements
  • Fixed rendering bug when using negative scale values
  • Fixed bug where functions were able to access local variables of the caller
  • Fixed dot operator (member lookup) chaining
  • Added documentation for tuples and structured data access
  • Bumped Euclid to 0.5.11, which includes several performance optimizations
  • Fixed issue where console would not clear correctly when reloading
  • Fixed hint message when missing closing brace
  • Added colour and grey as aliases for color and gray
  • Made stroke line width proportional to the scene size
  • Improved logic for default camera zoom level
  • Increase antialiasing quality in viewer
  • Updated screenshots and fixed bugs in help examples

1.3.0 (2021-08-31)

  • Added new standalone range expression with optional step value
  • For loops can now be used with either range or tuple/vector values
  • Added support for hex color literals
  • Added standard color names as constants
  • Inherited standard library symbols no longer override user-defined constants
  • All ShapeScript value types now conform to AnyHashable
  • Removed CustomStringConvertible conformance from GeometryType as it made debugging harder
  • Renamed StatementType.node to StatementType.block, since the term was confusing
  • Bumped Euclid to 0.5.10, which includes several bug fixes and features
  • Fixed crash when trying to access vector or color members from a non-numeric tuple
  • Fixed crash when trying to color members from a tuple with more than 4 elements
  • Accessing vector members on a tuple with more than 3 elements now raises an error
  • Made unchecked Color initializer private
  • Removed SceneViewController.snapshot() method
  • Added option to show axes in ShapeScript Viewer
  • Wireframe view option in viewer is now rendered using lines instead of SceneKit Debug option
  • Made wireframe view option persistent across app launches

1.2.4 (2021-08-25)

  • Fixed a crash when logging large integer values
  • Fixed bug where negative numbers would be logged as zero when using the print command
  • Improved formatting of logged numeric values generally

1.2.3 (2021-08-24)

  • Enabled parenthesized expressions to span multiple lines
  • Improved error message when assigning multiple values to single type
  • Fixed assigning color literal value to background without parens
  • Added Color initializers
  • Added SceneViewController.snapshot() method

1.2.2 (2021-08-24)

  • Blocks that accept child values can now be called without braces around them
  • Fixed confusing error messages caused by mesh commands being unavailable in certain scopes
  • Made script evaluation cancellable in case of infinite iteration or recursion
  • Fixed bug in Viewer app where view fails to refresh after loading geometry
  • Improved and simplified error handling logic

1.2.1 (2021-08-19)

  • Fixed crash when for loop end index < start index
  • Improved print log output, especially for arrays/tuples and nested values
  • Added Loggable protocol for stringifying values logged using the ShapeScript print command
  • Replaced TokenType.description with TokenType.errorDescription to aid debugging
  • Text now supports using \n for line-breaks (this was documented as working, but never implemented)
  • Fixed confusing error message when first value of tuple matches expected type
  • Fixed nonsensical error message when a command is used in an expression
  • Bumped Euclid to 0.5.9, which includes fixes for extruded paths
  • Extruding along a compound path now forms a union between the resultant shapes
  • Fixed typos and improved help documentation
  • Fixed member lookup precedence
  • Improved test coverage

1.2.0 (2021-08-15)

  • Improved progressive rendering logic, reducing wait before seeing first results in viewer
  • Geometry cache is now limited to ~1GB per open document instead of being unbounded
  • Cached geometry is now cleared when document is closed instead of persisting for app lifetime
  • Invalid font names now produce an error instead of silently falling back to Helvetica
  • Paths are now drawn in white when background is set to a dark color or texture
  • Fixed an index out-of-bounds crash in the Levenshtein distance function
  • Bumped Euclid to 0.5.8, which includes several bug fixes
  • Renamed GeometryType.none to the more descriptive GeometryType.group
  • Made Geometry.mesh and Geometry.associatedData properties thread-safe using NSLock
  • Removed Scene.deepCopy() and Geometry.deepCopy() methods as instances are now thread-safe
  • Moved selection logic out of ShapeScriptLib and into Viewer example application
  • Fixed bug in Viewer where geometries would be deselected during progressive loading
  • Added LRUCache dependency

1.1.6 (2021-08-04)

  • Paths are now drawn using polygons strips, which looks sharper and renders more consistently
  • Made further improvements to cancelling in-progress rendering when reloading a file
  • Bumped Euclid to 0.5.4, which includes several bug fixes and performance improvements
  • Improved performance when rendering scenes with nested CSG operations or groups
  • Fixed rendering and bounds calculation of non-planar extruded shapes

1.1.5 (2021-08-02)

  • Info window in ShapeScript Viewer no longer includes imported models in texture count
  • Fixed a regression in ShapeScript Viewer 1.1.4 where error message wouldn't refresh correctly on reload
  • Improved error messaging for errors that occur in an imported file
  • Reloading a partially-rendered scene should now terminate the rendering more quickly, freeing up CPU
  • Rendering is now cancelled when document is closed (previously it continued in background)
  • Improved responsiveness of incremental rendering for complex scenes
  • Program source and statements properties are now public

1.1.4 (2021-07-31)

  • Increased time precision of document file monitoring in ShapeScript Viewer app
  • Improved threading a progress logging in ShapeScript Viewer app
  • Added Linux support for ShapeScriptLib (excluding rendering and text functions)
  • Made static color constants immutable
  • Bumped Euclid version to 0.5.3

1.1.3 (2021-07-10)

  • Fixed assertion failure if a parsing error occurs at the last character in the .shape file
  • Fixed bug in Path plane calculation that could result in corrupted extrusion shapes
  • Fixed a tessellation bug affecting anti-clockwise polygons

1.1.2 (2021-07-03)

  • Fixed bug where CRLF was treated as two separate linebreaks, resulting in a crash
  • Error column indicator is now better aligned when code contains wide characters (e.g. emoji)
  • Fixed inverted black/white squares on chessboard example

1.1.1 (2021-06-26)

  • Fixed operator associativity (addition/subtraction were previously right-associative)
  • Performing CSG operations on complex geometry no longer causes a stack overflow
  • Bumped Euclid version to 0.4.5

1.1.0 (2021-04-08)

  • Added support for background colors and images
  • Added debug console
  • Improved ShapeScript error handling
  • Object names are now included in info popup
  • Upgraded project to Swift 5.1
  • Bumped Euclid version to 0.4.0
  • Fixed Xcode warnings

1.0.1 (2020-09-03)

  • Added iOS and tvOS support to ShapeScript framework (Viewer app is still macOS only)
  • Bumped Euclid version to 0.3.5

1.0.0 (2020-09-02)

  • First release