Colored cloud visualization

[lebionick]

Meshlab is great for rendering a camera in 3D cloud projection ❤️ (I save xyzrgba in ply format and just open it). However, there are several difficulties:

1. minimum point size is too big (in Ubuntu macos size is ok though 🤷‍♂️ :)
2. Each new cloud you open requires a separate adjustment (point size, shading and color, as in the screenshot) in order to have the correct colors. When you need to check many clouds in a row, it is quite time consuming.
3. When changing the visibility of the "layer" (turning off the cloud using the "eye" icon), this "layer" is selected. This is inconvenient, especially if you are recording a demo video and want to compare the current layer with others.
   Anyway, Meshlab is the best way for me to visualize clouds, and thank you for your work!

[lebionick]