1 – Load a colored point cloud in CloudCompare
2 – Use its PCV plugin to compute the ambient occlusion of the point cloud. Save the resulting point cloud as a ASCII file.
3 – Use the following command to apply the ambient occlusion to the RGB values :
awk ‘{ print $1 ” ” $2 ” ” $3 ” ” int($4*$7) ” ” int($5*$7) ” ” int($6*$7) }’ input.xyz >> output.xyz
