Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: lolec on 2017-08-10, 07:05:19

Title: Disable Exposure Control
Post by: lolec on 2017-08-10, 07:05:19
In my last project I create a physical camera like I always do, hit render and the image is very under exposed. However the VFB shows the exposure to be locked at -6.   I look around for a "6" somewhere and find that the "Exposure Gain>Target" setting in the Physical Camera is set to 6.

I can control the exposure with this setting, but I would prefer to control it inside the VFB, specially in early stages when I like to play around settings quickly.

I don't know how to go back to old behavior, I must've clicked something.  How can I go back to controlling exposure in VFB and not in Exposure Gain box?

Thanks.
Title: Re: Disable Exposure Control
Post by: romullus on 2017-08-10, 08:50:03
You need to disable max's exposure control. go to Effects and Enviroment and in exposure control rollout choose no exposure control. Now you are free to adjust exposure from cVFB.
Title: Re: Disable Exposure Control
Post by: maru on 2017-08-10, 12:30:07
The exposure/tone mapping hierarchy is this:

1. Corona CameraMod - this will be always used, if present in the active camera
2. 3ds Max Physical Camera - this will be always used if rendering from physical camera, unless CameraMod is applied
3. Render settings - this is the lowest priority, used only if the above are not used

btw, Corona Camera is coming, and it will hopefully make this easier to comprehend
Title: Re: Disable Exposure Control
Post by: lolec on 2017-08-11, 01:36:39
Thanks, that worked.

Any idea on how that can be turned on accidentally? I'm guessing a rouge shortcut? I've been using the same workflow for months and never happened to me. 

Looking forward to Corona Camera, I really like the common sense approach to your solutions, and I'm sure I will like it.
Title: Re: Disable Exposure Control
Post by: Frood on 2017-08-11, 01:48:08
Any idea on how that can be turned on accidentally?

Max weirdness: When you create a physical cam (just pressing the "Physical" button in object type is enough, you don't actually need to create one) the physical cam exposure control gets activated. Does not happen when using "Create physical cam from view" (or CTL+C when in perspective mode).


Good Luck