NEWS

isocubes 2025-09-13

[9000] Update to focus on SDF. Isocubes are used as an example renderer
[9001] Moved SDF/CSG to another package
[9002] Allow different coordinate systems
[9003] Faster rendering with viewports for offset
[9004] add demo data. tidy.
[9005] fix compatability issue with output from lofifonts
[9006] Faster colour handling
[9007] Visibility check now done in C. Preparing the way for per-face visibility check
[9008] Turn off default visibility check when creating heightmap
[9009] Allow cube border color to be set to the same as face color
[9010] Use 'colorfast' package for color conversion
[9011] xyplane = 'flat' by default
[9012] transforms: translate, rotate, align
[9013] export visibility checks
[9014] refactor visibility checks. add object generation.

New single-pass, deterministic visibility checking algorithm.
- Replaces the prior limited-depth, iterative technique.
- 4x faster
- Determines correct visibility for all cubes in scene

Wrote a cheap, but inaccurate colour darkening function cheap_darken()
- Quite a bit faster than colorspace::darken()
- Removed colorspace as a dependency

Added a light argument to specify lighting direction
- renamed fill_left and fill_right to fill_left and fill_right respectively

Replaced max_y argument with its inverse ysize
Added Signed Distance Fields (sdf_*()) for
- object creation
- object transformation
- object combinations

calc_heightmap_coords()
- Corrected an accidental matrix transposition.
- Added flipx, flipy and ground arguments for easier orientation adjustments.
isocubesGrob update:
- Renamed args to x and y.
Updated README examples