12-15-2019, 11:46 PM
Not very clear what the perceived problem is.
AFAIK Gimp 2.10 always work in 32bit-FP internally which is all for the better, in 8-bit round-off errors creep in very quickly: do a bump map in 2.8 and compare with 2.10 and you'll see there is no real debate. Making the image 32-bit FP makes processing faster (no conversions) at the cost of 4x the RAM.
Export artifacts may be be due to the export format and/or the format parameters (compression, etc...).
AFAIK Gimp 2.10 always work in 32bit-FP internally which is all for the better, in 8-bit round-off errors creep in very quickly: do a bump map in 2.8 and compare with 2.10 and you'll see there is no real debate. Making the image 32-bit FP makes processing faster (no conversions) at the cost of 4x the RAM.
Export artifacts may be be due to the export format and/or the format parameters (compression, etc...).