CloudCompare forum

I am having the same issue. Trying to Align by point pairs picking - it allows me to "show 'to align' entities"(Red) and I can put on 4 points fine, but "show 'reference' entities"(Yellow) checkbox is not responding so I cannot select points on 2nd cloud. What am I doing wrong? I...

I am new to scanning. I am trying to merge two scan clouds using the "Align two clouds by picking (at least 4) equivalent point pairs" button. Only the "show to 'align' entities box is activated (checked). I pick the 4 points on the cloud which get listed in the "show to 'align' ...