Add "lens breathing" parameter to "VRay Exposure Control" in the Exposure Control dialog

[Art48]

Background is the following:
3ds max 2016 and VRay 3.5

We work with lens breathing disabled (0.0) because it is just more predictable and easier to work with. And we normally use the "Physical Camera Exposure Control" set to "Use Per-Camera Exposure" and this works fine.
Now when we defined a camera and set up a basic lighting we tweak shaders by hopping into perspective view and looking around there to see some nice highlights and text shader behaviour in a very quick and efficient way.
Now the problem is that we would normally switch over to "VRay Exposure Control" and take the exposure values from the camera we will render as to have lighting strength and everything match when we hop into perspective view to test the shaders. Now the thing is that VRay Exposure Control apparently has a hardcoded lens breathing of 1.0 as my tests suggest so we get a darker image.

So my wish is to have the lens breathing parameter get carried over from the Physical Camera when using "VRay Exposure Control" as to get the exact same image with both ways of exposure control.

I hope I have made myself clear - if not I can clarify if you ask.

cheers

[Art48]

Obviously the best way would be AD incorporating specific values into their Exposure Control like VRay does with the "Use Per-Camera Exposure" mode.

[vlado]

It doesn't make much sense to put the "lens breathing" parameter into the exposure control, because it should only deal with, well, exposure.

Now the thing is that VRay Exposure Control apparently has a hardcoded lens breathing of 1.0 as my tests suggest so we get a darker image.

Can you show me your tests?

Best regards,
Vlado

[Art48]

As soon as I get some time again I will upload some images. Could be a while though.

[Art48]

While doing some tests I noticed that I may have to revise my statement and/or expand it.

See the attached image and max (2016) file, which should in theory produce the exact same output. Now I don't know if this is a CG or an Autodesk or my own screwup.

This is shot from the same camera, not one camera, one perspective viewport or something like that.

[Art48]

Did anyone have a chance to check this out yet? I know it's not a priority, just checking in