last week I tried rendering with low resolution quality. Then I switched to 'HDTV 1080p' preset and it rendered well for some time (rendering took cca 4 minutes per image).
Today I tried to render again. I've checked preview and it looks OK (preview takes up to 2 minutes to render), but when I click actual render button, it gives me a poor image with rendering time 0.25 seconds.
I don't remember changing any settings, but obviously something has changed? I cannot seem to find the reason.
Here is the preview:
Here is the final render:
Settings: (cycles render):
Thanks in advance, Gregor