MathMap Unstable Release Changes

Changes in 1.3.2

• Compositions can be saved and used as parts of other compositions.
• Colors, gradients and curves can be passed to filters, which now makes all filters usable in the composer.
• More filters for use in the composer (including almost all GIMP layer modes).
• Optional multi-threaded final rendering (compile-time option).
• Bugfixes.

Changes in 1.3.1

• The MathMap Composer, which allows combining filters in a graphical user interface similar to Yahoo Pipes and Quartz Composer.
• New and improved filters.
• Bugfixes.

Changes in 1.3.0 (from 1.2.4)

• Filters can call other filters and can be applied to images to yield "virtual" images.
• Slightly improved command line front-end.
• New and improved examples.
• The interpreter is broken.

Changes in 1.1.3

• "unit" scaling for filters and images.
• Edge behaviour for x and y axes uncoupled.
• "Reflect" edge behaviour.
• Tuple length limit removed.
• New and improved examples.
• Bugfixes and cosmetics.

Changes in 1.1.2

• The command-line tool is optional to remove dependencies on image IO libraries.
• Bison and Flex are not required for compiling the distribution.
• Should work with GIMP 2.3 as well (untested).
• A working interpreter.
• Elliptic Jacobi functions for real and complex arguments.
• New "ceil" function.
• New and improved examples.
• Several bugfixes.

Changes in 1.1.1

• A new syntax for declaring filters and user values.
• Default values for integer and float user values.
• Functions for elliptic integrals and elliptic Jacobi functions.
• Better error reporting from the compiler.
• The interpreter is broken (will be fixed soon).
• Expressions can be saved from within MathMap.
• The preview is bigger.
• Works only with GIMP 2.2.
• Unified binary for plug-in and command-line tool.

Changes in 1.1.0

• The compiler now does several optimizations.
• MathMap can now generate sequence plug-ins for Blender.

Changes in 0.14

• Compiles and runs with both GIMP 1.2 and GIMP 2.0.
• Comes with a Language Tutorial!
• Lots of new and improved examples.
• Features a new compiler, which doesn't yet generate better code than the old one, but offers a much better platform for future improvements.
• MathMap now automatically uses the compiler and if that doesn't work, falls back to the interpreter without user intervention.
• All functions now use radians instead of degrees (which is The Right Thing).
• Compiles on MacOS X (tested with GIMP 1.2 on Fink).
• Bug fixes.

Changes in 0.13

• The command-line version can now read and write animations in the MJPEG Quicktime format.
• A french translation (thanks to Laurent Despeyroux).
• Bug fixes.

Changes in 0.12

• Requires at least GIMP 1.1.26.
• MathMap now has a GIMP-independent command line version.
• Much improved complex arithmetic (thanks to Hans Lundmark).
• New/improved functions: scale, toRGBA, toHSVA, gamma, sinh, cosh, tanh, asinh, acosh, atanh, arg, conj, exp (most of them contributed by Hans Lundmark).
• Some bug fixes.

Changes in 0.11

• Requires at least GIMP 1.1.
• More than one input image can be specified!!!
• MathMap now registers all examples in the PDB.
• Several new/improved examples.
• New/improved functions: lerp, clamp, noise.
• Some internal changes.
• Fixes some bugs.

Changes in 0.10

• Expressions can now contain values which the user can specify through the GUI (numbers, colors, booleans, curves). This is a mega-feature!
• Pixels outside the image can now also be reflected back into the image (thanks to Eric Kidd).
• More matrix/vector algebra (including gaussian elimination).
• The positive Y-axis direction is now upwards which is clearly The Right Thing.
• Some minor C code generator changes which should not affect the user but easy writing of built-ins.
• New/improved functions: print.
• Some bug fixes.

Changes in 0.9

• Lots of bug fixes.
• Simplified build procedure.
• The parser is now a little more forgiving.
• Generalized tuple subscription.
• Tuple subscripts can now be assigned to (making morph obsolete).
• New/improved functions: det, crossp, atan, sum.

Changes in 0.8

• Now runs under both GIMP 1.0 and GIMP 1.1.
• Features a transparent MathMap->C compiler under GIMP 1.1 boosting performance by a factor 2 to 8.
• Simple vector and matrix algebra.
• Pixels outside the image can now be either wrapped or given any color (including transparency).

Changes in 0.7

• Implemented the tagged tuples type system. This is a major feature!
• Implemented better error handling by borrowing a piece of code from the current development tree of chpp.

Changes in 0.6

• Alpha channel now shows up in the preview (thanks to Andy Thomas).
• Added the exponentation operator (^).

Changes in 0.5

• Completely redesigned the dialog.
• Added a curve widget which allows the user to intuitively specify a function which can be accessed from the expression (curve).
• Added the function gradient which accesses the user-defined gradient.
• Made it possible to change the parameter t when not animating.
• Implemented a fast-preview option.
• Put the examples into a file which is displayed in a tree widget.
• Expressions are now edited in a text widget, which allows for multi-line expressions.
• Moved the plug-in to Filters/Generic, so as to conform to the new menu hierarchy.

Changes in 0.4

• Added syntactic sugar for some functions (especially logical operators).
• Added a pow function.
• Support for alpha layer.
• Support for grayscale images.
• Animation capability.

Changes in 0.3

• if is now a language-level construct.
• I have introduced while and do-while loops.

Changes in 0.2

• Fixed the bug that caused it to crash after the first preview.
• Added a few more functions: red, green, blue and rgbColor.
• Added the assignment (=) and the sequence operator (;).

The MathMap GIMP Plug-In