I just opened a new pull request #42 for @alexfry for CAM DRT v057, also available from my repo.
This version fixes the white point used in the computation of various tables, especially the reach table and the AP1 gamut cusp table. The white point for them is now the ACES white rather than D65.
As a result the inverse improved, so this version now reduces the cusp smoothing value and smoothing factors without negatively impacting the inverse. The end result is slightly less clipping in the forward direction. There’s not really a visible difference to v056.
@TooDee’s stars chromaticities v057 vs v056 in sRGB output:
v057:
v056:
BT.1886 inverse v057 vs v056:
v057:
v056:
