yes tomislavn thats true i noticed it too, it was my first test with corona, many stuffs not perfect like you said bump in the appels not perfect, in others surfaces like woods, metals i disable bump because i was having hard noise, and i am unable atm to use displacement since it was not working correctly, waiting for displacement to get fixed... next test i will make i hope i can have more control of corona and probabily will understand more about corona too! :)
Gootman: witch setting you want to know? about the corona settings everything is defaul i just increased the amount of light samples to 10, and the record quality to 1024, and i increased the render passes to 180.
If you need info about some material tell me please.
regards