Important clarification - background plates
Posted: Thu Mar 28, 2013 9:15 pm
by Mihai
As mentioned in this post:
http://www.maxwellrender.com/forum/view ... 32&t=40328
You need to use the background plate (photo) provided with the HDR when posting your final renders. Your renders MUST be composited into this background plate, you cannot just use the HDR also as the background.
Re: Important clarification - background plates
Posted: Thu Mar 28, 2013 10:32 pm
by Ernesto
I see.... Mihai
I wonder how to match the provided plate with the HDRImage, in order to get a realistic lighting.
Perhaps we need a camera specification, for instant a FOV angle; and an specific horizontal camera angle; as well as a vertical angle, to match it.
Ernesto
Re: Important clarification - background plates
Posted: Thu Apr 04, 2013 12:41 am
by Mihai
Maground have responded that the focal length of the lens is 45mm. So to recap:
Film back (sensor) size: 49.1x36.8mm
Lens focal length: 45mm
You need to enter the sensor size above in your main applications camera setting or in Maxwell Studio (in the Camera Parameters panel) in order to then enter the 45mm focal length and have a correct match. If you use a smaller or larger film back/sensor size, the 45mm focal length needs to be recalculated, so use this film back size.