Today I found that the TG (4.1.15.frontier) refuses to render the cloud if the next frame makes its radius zero. Does anyone know what that is?
This appears to be a bug. We'll investigate further to confirm and then work on a fix.
Btw, I know, this is a bit off topic, but I saw you used V3 clouds, Denis. Depending of what you're after, it may be a big timesaver to use V2 clouds. They render much faster, and unless you want to render real clouds they look great as well.
Thanks for the response, Oshyan.
Hannes, thank you for the information. This spheres just for animation test. My main goal is not clouds, but nebulae. For them I need a realistic lighting calculation, as far as possible. I tested both versions of the clouds and I liked the v3 version. In addition, I do not have haste.