This is the build:
https://render.otoy.com/customerdownloa ... _Win64.zip
In the plugin folder, there is a new "tex" directory with the texture maps, one for the RGB color and other for the alpha. You only need to enable the new feauture, And use the texture map to shade the particles.
You are going to need to remove the OBJ spare parameters and add them again to see the new particle options (if you are working with an old scene)
In a 4k map I can only store 6bit RGBA (64 level in each component), but should work fine for near all scenes.
-Juanjo