Feature Request

[ValeroStudio]

Something I was always wishing for would be the ability to adjust the exposure of a test image in the VFB, and then click a button that sends / translates that adjustment to the camera exposure settings.

Essentially adding or subtracting the adjustment to the EV number.

[jiminy-billy-bob]

+1

This is how Corona VFB works and its great!

[caecarvalho]

+1. I've been thinking of such a request for a long time but was lazy to put it in words. I'm very happy with v-ray 3.6 but it would be very nice to have exposure adjustments like corona vfb or even thea that let's you choose the camera exposure settings after rendering the image. Such a time saver.

[ValeroStudio]

It's literally just math - take the number from the VFB and make it adjust the EV number - I know I am not a programmer, but this sounds like an easy thing to implement.

[konstantin_chaos]

Hi guys,

I agree this is going to be a useful thing to have.
Unfortunately we don't currently have a good way to sample individual sliders or values from the VFB.

We'll try to make this work in the future and in the time being you can just do a simple calculation and do it manualy:

1.Set: new_EV = EV + (-1)*(vfb_exposure)
2. Set: vfb_exposure = 0

The logic is that the VFB exposure number should be inverted and added to the EV value in the Asset Editor.
For example if the initial EV=(14) and the VFB exposure=(-2) you can set the EV=16 (14+(-1)*(-2)) and disable the VFB exposure. The image should match the original one.

I hope that helps,
Konstantin

[ValeroStudio]

That works for now! Thanks Konstantin