I’m trying out the automatic landmarking module ALPACA/ MALPACA in 3D Slicer. When running ALPACA subsampling the max density value is capped at 2 so I can only achieve a maximum subsampling of around 3’800 points (see screenshot 1) when my mesh has a resolution of around 50’000 points (screenshot 2). We previously heard that the recommended amount of points lie between 5 - 6k, so is there a reason for my subsampling not going that high?
Most models we worked with has higher resolution than 50K points, so the value of 2 usually gave more than enough points to work with so never needed to increase beyond that.
You can find the ALPACA.ui file under the Resources folder of your SlicerMorph extension, and manually increase the number of maximum value from 2.0, to whatever you like.