Author Topic: Camera and exposure in Corona 8 + TintOperator  (Read 1584 times)

2022-04-14, 11:56:59

zaar

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It was very confusing to not be able to use photographic settings right away. Eventually found that I had to add it to the tonemapping stack. But it's kind of wierd that I can still enable simple exposure, but the spinner is greyed out and I cannot change it.

Very glad to see the term EV removed from simple exposure! This was very confusing for people when it didn't mean the same thing as it does in the rest of the photographic world.

Would it be possible to get real EVs as an option on the photo graphic exposure and/or basic photographic settings? I know Juraj told me it was an antiquated/obsolete term or something. But I think it's really wonderful way of simplyfying exposure and it's been around for ages. There's lots of reference. And it's a really excellent tool when I teach visualisation students to get them in the ball park of how much light is reasonable for a scene. Juggling shutter, aperture and ISO is too much for them. So we look at loads real world examples and what EV they were shot at. So they know a bright daylight scene is around 14 EV and an bright office interior is 7-8, and that's also good for blue hour exteriors.

And what does this really mean?
Quote
"Physical camera: The following operators are supposed to be overridden but they are not in the tone mapping pipeline: Chaos.TintOperator.Data"
I just made a phys cam and tried to render with daylight system. I don't get the error messange when I open an old scene made in Corona 7
« Last Edit: 2022-04-14, 13:24:26 by zaar »

2022-07-21, 17:58:28
Reply #1

Avi

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Hi,

To use the Photographic setting, you will need to add the "Photographic exposure" operator in the VFB. After that you can control the exposure using the ISO, F-Stop and Shutter from the Corona Camera.

I have logged your request to introduce EV in Corona for devs to review. We will update you if there will be any update on this.
(Internal ID=934834411)

"Physical camera: The following operators are supposed to be overridden but they are not in the tone mapping pipeline: Chaos.TintOperator.Data"

This warning basically means that you will need to add the Tint operator in the Corona VFB if you are intending to control the tint directly from 3ds Max native physical camera. I will recommend you use the Corona camera for a smooth workflow. However, we will improve the warning so it is much simple to understand.
(Internal ID=931161947)



Arpit Pandey | chaos-corona.com
3D Support Specialist - Corona | contact us