Vray Cams ?

[bernhard]

Hello friends !

I read the help files and manual about the vray cams - but still can't really figure aout the difference between the still, movie and video cam.

- What's the main difference ?


thx for every little help,
bernhard

[vlado]

The main difference is in how the exposure time (and therefore motion blur) are defined. E.g. a still camera has shutter speed, but a movie camera has shutter angle corresponding to the rotating shutter, while a video camera has ccd latency.

Best regards,
Vlado

[jujubee]

I'm a noob Vlado. Can you describe what all this means in simpler detail?

I notice (I think) that video camera respects exposure from various angles a lot better than moving a still camera. It seems if I change the camera angle of a still camera, I always have to readjust F-Stop. With Video Camera I can keep the F-Stop.

[bernhard]

hmmm..

@vlado:

a) how does it effect the render time while using motion blur ?
b) do you suggest the movie camera for animation only ?

thx,
bernhard

[trixian]

I think the different camera types are there to simplify the setup for people who know the respective names, and how they correspond. Vray itself probably doesn't care that you use a still camera type for a animated action shot.

[cpnichols]

Wikipedia is your friend:

http://en.wikipedia.org/wiki/Shutter_speed
http://en.wikipedia.org/wiki/Movie_camera

The longer the exposure the longer light comes in, and the longer something gets blurred as it moves while the shutter is exposed.