Spektrafilm darktable module implementation discussion

[geni1105 (Georg N)]

Spectral film simulations from scratch

they are experimental features, they improve the accuracy of color reproduction (in a filmic sense). the adaptation window should stay on the adaptation surface buys you some residual accuracy but at the cost of cooler skin tone rendering, so i would leave it off for now. possibly switch it on for landscape or non-portrait they are optimized per stock and they are very experimental, they might vanish if a better solution for the up-sampling will be found (stay updated with the spektrafilm tec…