Shading artifacts emitter noise transparency ghost
Posted: Fri Jan 03, 2014 1:54 am
Hi,
strange triangular artifacts and a transparency ghost afflict this very simple scene. Two emitter planes left and right as softboxes and 5 emitters inside the white shell are used, pointing upwards from the grille (displacement and transparency mapped). The white shell material has no transparency, in fact the triangular artifacts and the ghost transparency appear also with the default material assigned - that is very odd. Same result when OBJ exported from MATLAB or Rhino or Alias. What am I doing wrong here?
http://bayimg.com/JAFofaaFm
By the way, is it at all feasible with a small 5 node render farm to attempt an SSS material for the shell here - or will that require some insanely high SL or weeks of render time? I remember reading somewhere that SSS and emitters don't go so well together as far as noise/time is concerned?
Thanks for any hints!
strange triangular artifacts and a transparency ghost afflict this very simple scene. Two emitter planes left and right as softboxes and 5 emitters inside the white shell are used, pointing upwards from the grille (displacement and transparency mapped). The white shell material has no transparency, in fact the triangular artifacts and the ghost transparency appear also with the default material assigned - that is very odd. Same result when OBJ exported from MATLAB or Rhino or Alias. What am I doing wrong here?
http://bayimg.com/JAFofaaFm
By the way, is it at all feasible with a small 5 node render farm to attempt an SSS material for the shell here - or will that require some insanely high SL or weeks of render time? I remember reading somewhere that SSS and emitters don't go so well together as far as noise/time is concerned?
Thanks for any hints!