min pixel width is disabled when rendering from a User view, it needs a real camera to work. So always use one when working with hair.
On Mon, May 5, 2014 at 10:52 AM, Andreas Bystrom <[email protected]>wrote: > like I said the min pixel width is 0.25 by default, even without the > arnold parameters property. > > 0.25 means that no hair strand will be thinner than 0.25 pixels in screen > space, how much the hair gets scaled up depends on how far away your camera > is, and at what resolution you render at. > I'm not sure how it's calculated exactly, but obviously the camera > distance is taken into account, which must be why you're seeing different > results between the camera view and the user view. > > > > > On Mon, May 5, 2014 at 8:47 PM, Mario Reitbauer <[email protected] > > wrote: > >> Ty guys, looks like it's rly about the min pixel width. >> >> I don't rly understand why that could cause a different result if I got >> the same size of the object in the userview and the camera. >> >> So even without an arnold parameter it shouldn't matter should it ? >> How isthe min pixel width calculated ? >> What is it using to calculate ? >> >> >> 2014-05-05 10:34 GMT+02:00 Andreas Bystrom <[email protected]>: >> >> then it does sound like min pixel width, it could be a refresh problem >>> also, try doing a destroyScene inbetween the renders, it might be that >>> arnold uses the data from the render camera when rendering in the user view >>> and vice versa. >>> >>> >>> On Mon, May 5, 2014 at 8:24 PM, Mario Reitbauer < >>> [email protected]> wrote: >>> >>>> Sry, missed to mention that ;) >>>> >>>> Yes its Arnold. No lens shaders, same render settings in all regions. >>>> >>>> >>>> 2014-05-05 10:21 GMT+02:00 Andreas Bystrom <[email protected]>: >>>> >>>> which renderer? if it's arnold it has the min pixel width enabled for >>>>> hair by default, this will scale hairs up in screen space to avoid >>>>> flickering when the hair strands are far away, it's 0.25 by default in >>>>> sitoa, and it might be what's causing the different look.. >>>>> >>>>> >>>>> >>>>> >>>>> On Mon, May 5, 2014 at 8:13 PM, Mario Reitbauer < >>>>> [email protected]> wrote: >>>>> >>>>>> Hey guys >>>>>> >>>>>> Got a question about hair rendering. >>>>>> Anyone knows why hair rendering looks different when rendered in user >>>>>> view compared to rendering in camera view ? >>>>>> >>>>>> Got a hairy animal and the hair rendering looks more blury in the >>>>>> userview. >>>>>> >>>>>> So maybe someone allready stunbled upon this. >>>>>> >>>>>> cheers >>>>>> Mario >>>>>> >>>>> >>>>> >>>> >>> >> >
