Grayscale Colored Point Cloud to Density Point Cloud (Dithering)

[scienceisfun]

I want to convert a colored point cloud surface to a grayscale point cloud then convert this grayscale image to another point cloud that represents this grayscale image eg dithering.

Want to do this for 3D Crystal Laser engraving purposes - the laser only has on/off and creates little bubbles. Is there any sort of algorithm or function in cloudcompare that does this?

[daniel]

The first part should be easy (converting RGB to gray scale). You can for instance use https://www.cloudcompare.org/doc/wiki/i ... alar_Field and extract the 'composite' field and display it with a gray color scale.

But I'm not sure to understand the second part...