Revision History

Added Italian, thanks to Angelo Contardi.

Changed
"Rhombitruncated Cuboctahedron" → "Truncated Cuboctahedron"
"Rhombitruncated Icosidodecahedron" → "Truncated Icosidodecahedron"
and similarly in other languages (excluding French, which retains the grand/petit forms).

Removed spoken polyhedron names. They really weren't so important, and they presented an obstacle to revising the polyhedron names in English, as well as an ongoing burden to people translating KaleidoTile into other languages.

Removed the option to show or not show the Archimedean polyhedron names. Now they always get shown.

Moved all colors from plain (r,g,b,α) to premultiplied (αr, αg, αb, α) for rigorous transparency, eliminating all artifacts, and correct mipmap generation. Accepts premultiplied or nonpremultiplied pasted images on Mac.

Reorganized texture management.

Added side-by-side stereoscopic 3D for display on polarized lens systems like GeoWall.

Improved handling of non-square tiling panel.

Revised ResizeGLView() for greater flexibility.

(Win) Simplified loading of Open GL entry points.

Reorganized drawing code to use programmable vertex and fragment shaders (OpenGL 2.0) instead of old-style fixed function pipeline (OpenGL 1.5). New code uses generic vertex attributes for forward compatibility with OpenGL 3.2.

(Mac) Migrated NSString literals with UTF-8 to newer, simpler format.

Rewrote menu translation code for Mac OS 10.6 compatibility.

Added user-adjustable hyperbolic tiling depth.

Moved responsibility for requesting a display redraw from platform-dependent code to platform-independent code.

Minor changes for OpenGL ES compatibility.

Minor maintenance on Win32 user interface

(Win) If KaleidoTile fails to load a post-OpenGL 1.1 function under its permanent name (e.g. "glBindBuffer"), it looks for it under its former extension name (e.g. "glBindBufferARB").

Added user-controlled scale factor for Euclidean tilings.

Added data persistence ("user prefs" on Mac, "registry keys" on Windows) so KaleidoTile now remembers the multisampling ("Smooth Edges") setting from a previous session.

Replaced quadratic-time tiling algorithm with linear-time tiling algorithm. Tiles in real time, with no precomputed matrices. Enforces cutoff distance relative to current tiling position, so as the tiling moves, the boundary tiles pop in and out one at a time, not en masse.

Reorganized drawing code to use Vertex Buffer Objects instead of display lists, because displays lists are deprecated in standard OpenGL and don't exist at all in OpenGL ES. New drawing code almost doubles the frame rate for large hyperbolic tilings (e.g. from 19fps to 34fps).

Changed projection matrix to show hyperbolic tilings in Poincaré disk model rather than from the more limited inside-the-hyperboloid viewpoint. When KaleidoTile was first written, standard consumer PCs and Macs weren't fast enough to handle the Poincaré disk in real time, but now they are.

Changed coordinate conventions so that KaleidoTile looks down the positive z-axis instead of the negative z-axis.

Simplified default language initialization on Mac OS X, eliminating LanguageCode.strings files.

Added Welsh (thanks to Uned Gyfieithu Prifysgol Bangor).

Suppressed needless backface calls for flat and hyperbolic tilings.

Removed depth buffer.

No longer suppresses background when Cut Along Mirror Lines is enabled.

Avoids calling ErrorMessage() when the OpenGL context is active.

Provides a clear explanation if the application gets separated from its supporting files.

Smooth Edges disabled by default, for better performance on low-end computers

More efficient algorithm for pasting images into KaleidoTile on Mac OS X

Completely re-written user interface

• runs on Mac OS X as well as on Windows,
• for each language, a single platform-independent file contains all localized strings,
• the Windows version no longer needs separate .rc and .dll files for each language,
• the Mac OS X version needs no language-specific NIB files.

Background fully user-customizable, with color, stock image, or user-provided image.

Suspends continuous redraw when display is static.

Added Japanese, thanks to Tatsu Takeuchi.

Added Portuguese (thanks to Atractor).

[Note: 3.0.2 was built using old KaleidoTile code, while new code is under development.]

Added French (thanks to Jean-Michel Celibert).

Suspends frame rate measurement while minimized.

Switched to gcc compiler with CodeBlocks IDE.

Minor internal changes.

[Note: 3.0.1 was built using old KaleidoTile code, while new code is under development.]

Initial KaleidoTile 3 release.

Completely re-written using OpenGL graphics.

Improved user interface.

Full support for current-generation 3D graphics cards.