Thanks Hetzen

I just like the view as the camera is rising from the grass. I knew I would like such a scene when I stopped the project with the viper rising from the mountain lake

I have already seen, that I did a mistake in the up-scaling size. I did it on the test-server with a fresh installed XNView - must check some settings.
Some months ago I decided to limit my rendering size to 1280x720 (720p HD) to get an affordable rendertime for my absolutely too big project of app. 23000-25000 frames.
I came to this decision after I watched (another hobby

) "youtube let's plays" on my TV and felt the 720p resolution as absolutely OK. So now I render all my images in this smaller resolution and "batch-upscale" them to 1920x1080. That gives a smoother look and I have the feeling it anyway looks more natural than a 1920x1080 render of these images. Like the natural blur effect of a not perfectly focussed camera.
Meanwhile I have changed some settings on my test-server:
Increased the maximum threads to 256
Increased the subdiv cache from 2048 to 4256 MB (at home my core i7 / 8GB often crashes with this setting but the server with 12 MB should work.
Perhaps I can spare some minutes rendertime... anyway this machine will do nothing else then render render render render... untill it dies.
Next year I can get the same machine with 32GB - I'm curious how much influence that will have to the rendertime.