Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: romullus on 2014-07-13, 12:16:55

Title: dof bug
Post by: romullus on 2014-07-13, 12:16:55

Build timestamp: Jul 11 2014 19:17:55

Exposure of rendered image decreases exacty by 1 stop (EV value) when dof is enabled. No matter if photographic exposure or arbitrary EV is used. CoronaCameraMod acts the same.

Title: Re: dof bug
Post by: Ondra on 2014-07-18, 19:10:29

Do you have some nice scene for me showing the probleM?

Title: Re: dof bug
Post by: romullus on 2014-07-19, 23:03:19

Sorry, false alarm once again. It turned out that my camera was extremely close to the wall and with dof turned on, it somehow gets a little less light. If i move camera just a bit further from the wall, problem disappear.

Title: Re: dof bug
Post by: Ondra on 2014-07-19, 23:05:25

that is probably because when you turn DOF on, the rays are no longer emitted from a point, but from a small circle. With camera extremely close to wall, this circle can actually intersect the wall, resulting in darkening of the image.

Title: Re: dof bug
Post by: maru on 2014-07-20, 10:42:59

Useful information.