maybe one of the tech guys who uses pw2 can answer this
recently whilsti was playing around i saw one or two ok rendered images using Global illum i was abit shocked at the quality having that i had last year ditched pw as arenderer preferring toexport to alias maya to render out images and animation so i tried a few experiments which seem to work but maybe im missing something which is giving me a false result
instead of using gi solutions in pw2 i mapped an hdri image to a plane hdri images support generating light or false light but on a constant basis rather than having to light a scene the result i got after turning all the lights off in the scene were semi ok a bit dark and grainy, first point is that there is no exposure control in pw2 to increase the lighting levelwhichwill leave my images darkbut but on the whole it seems that the image plane is generating a gi solution
my question being that when they ported bits of mental ray across did they leave the support for hdri image in as a GI generator or is there something else lighting the scene
by the way ill post the images as soon as i figure out how to get them up onto a server