1.46.15 new feature

[GALACTUS]

Hi Everybody

Whats this new "Gamma correction" colour mapping method, and does it have anything to do with "How to get better VRay renders (aka working in linear space)" thread by Throb?

http://www.chaoticdimension.com/foru...ic.php?t=10854

I just stumbled across it last night but have not had the chance to do any tests

Colin

[lukx]

yep it does. I think it do the same as (aka working in linear space) but you don't have to set it in VFB just ste gamma as color mapping and done.

[vlado]

It's just simple gamma correction. The Dark multiplier is simply a multiplier for the colors, and the Bright multiplier is the actual gamma value. For example, if your monitor has a gamma of 2.2, in order to correct for it, you need to set the Bright multiplier to 1/2.2 (~0.45).

Best regards,
Vlado

[GALACTUS]

Cool This is what you would call value for money.... you order your car with the basic options and the manufacturer goes ahead and slaps in other optional extras and new features entirely for free, Its almost unheard off these days.

Do we have to setup max to enable gamma correction at 2.2 and also set max to use 2.2 as image input and output gamma value??

Colin

[natty]

can i ask Vlado why this wasnt put in the Vray Frame Buffer so you could do it realtime?

[CCS]

I'd agree with Natty. I had been meaning to start a thread asking if it was possible to save VFB color correction settings to avoid entering it every time.

With this new color mapping, if I preset gamma will I still be able to adjust curves in the VFB? Would this be adjusting the base value, or applying another curve on top? And if so, is this going to introduce undesired compounded corrections?

Lots of questions

[Gijs]

I am glad I follow this forum very closely...But for other people it might be good to add this info to the manual and to the new features list.

[vlado]

If you right-click on the curves control, there is an option to save/load the curve configuration into a file.

The VFB color correction operates separately from the Color mapping method. If you select the Gamma correction color mapping, then you should not apply a gamma-correction in the VRay VFB.

On the other hand, the Color mapping method only affects the RGB color channel in the VFB; the Real RGB channel is not affected by it.

Best regards,
Vlado

[natty]

So why cant we use Gamma and Colour mapping together ... this option only allows one or the other.

[Gijs]

So actually it should read: display gamma correction. But still I think it leads to confusion with most people including myself.

[GALACTUS]

Dudes

You guys lost me after gamma..... Maybe we should go back to the way we used to work and just resave the image in combustion with the gamma changed to 2.2 heh heh

Colin

[Gijs]

Vlado, wouldn't it be just much easier if there was a box in the VFB where you can fill in your preview gamma or a checkbox with "use max's gamma settings"

It is really strange to set color mapping to something like gamma correct while in fact nothing happens to the output.

[natty]

Yeah i agree ... A slider would be better in the VFB .. so you can colour correct then adjust the gamma..

[photonC]

What the heck happened here, damn bastards hacking sites for fun, stupid script kiddies.