Lens effects not rendering the same in 3.5??

[viscorbel]

There is one drawback to adjusting the burn value in vfb - if you also want to use adjustments like curves, the result will look like crap.
If you adjust the burn in color mapping and then use curves in vfb, it will look good.

[Vizioen]

This doesn't need to be added to the documentation, it needs to be fixed. I can't get any decent Lens effects anymore. Also why did this happen unannounced. Is this the result of the real time lens effects during rendering? Because in all honesty I don't give a hoot about that. A fair warning to those that asked the real time updating wasn't given either. And why are we the only ones complaining about this so far. Very upsetting. My last 2 projects are without lens effects because of this. Not cool.

[Vizioen]

There is one drawback to adjusting the burn value in vfb - if you also want to use adjustments like curves, the result will look like crap.
If you adjust the burn in color mapping and then use curves in vfb, it will look good.

Exactly this.

[vlado]

There is one drawback to adjusting the burn value in vfb - if you also want to use adjustments like curves, the result will look like crap.

This can be fixed. Can you show me example settings?

If you adjust the burn in color mapping and then use curves in vfb, it will look good.

We really don't want you using the Burn value in the color mapping settings. If you have any problems with the Burn value in the VFB, let us know and we'll fix them.

Best regards,
Vlado

[vlado]

This doesn't need to be added to the documentation, it needs to be fixed.

We won't fix it - it was wrong to have the lens effects work in that way in the first place, as it caused us and the users a lot of issues, and prevented us from integrating the denoiser and the lens effects to work togeter. On the other hand, if you have issues with the Burn value in the VFB, let us know and we'll fix those.

Best regards,
Vlado

[viscorbel]

Vlado,
here you go - first a comparison and then the vfb settings from the crap looking image.
The problem is the order of operations in the vfb - the burn and exposure should be applied before curves and levels adjustment.

While we are at it - can you do something about the curves adjustment sensitivity? Right now when I click on one of the points to access it's bezier handles the point itself seems to always jump a few points in any direction, then I have to go and manually input the correct coordinates so it goes back. Either my hands are shaking too much or mouse is too sensitive, but it happens like 90% of the time, kind of annoying if I just need a simple S curve adjustment...
Maybe adjusting curves the same way as it is done in photoshop would be a better idea? Seems way more user friendly

[vlado]

The problem is the order of operations in the vfb - the burn and exposure should be applied before curves and levels adjustment.

Ok, I see - we'll definitely fix that.

While we are at it - can you do something about the curves adjustment sensitivity? Right now when I click on one of the points to access it's bezier handles the point itself seems to always jump a few points in any direction, then I have to go and manually input the correct coordinates so it goes back.

Yes, it's been bugging me for a long time too It was supposed to be fixed at some point, but it doesn't seem quite right to me yet.

Best regards,
Vlado

[Vizioen]

So in short, the burn value does work the same as the burn value in the render settings, they just get screwed up when you start to use curves to add back contrast, because of the order in which they occur. That explains a lot. I wouldn't mind if I had to adjust the burn value in the VFB, but when I save all my render elements from the VFB. (Save all in one EXR). The burn value doesn't get saved out. Again no problem, but I haven't found a good way to tackle this burn (32bit) in photoshop, the camera raw doesn't work with 32bit. I bought affinity recently though though no luck finding it there yet.

[viscorbel]

Ok, I see - we'll definitely fix that.
Yes, it's been bugging me for a long time too It was supposed to be fixed at some point, but it doesn't seem quite right to me yet.
Best regards,
Vlado

Thanks Vlado, these would be some very useful fixes

[vlado]

So in short, the burn value does work the same as the burn value in the render settings, they just get screwed up when you start to use curves to add back contrast, because of the order in which they occur.

Yes, it looks like this is the problem. Will fix it.

That explains a lot. I wouldn't mind if I had to adjust the burn value in the VFB, but when I save all my render elements from the VFB. (Save all in one EXR). The burn value doesn't get saved out.

It's possible to implement this, and it's on the "to do" list, so hopefully we'll get to it for 3.50.04.

Best regards,
Vlado

[thanulee]

It's possible to implement this, and it's on the "to do" list, so hopefully we'll get to it for 3.50.04.

Heya, correct me if im wrong, but individual elements shouldnt be tonemapped when saved in order to produce a linear image with post flexibility. However, it would be a nice addition, if these clamped elements reconstruct the beauty 1:1. Is that what u are after with this change? thanks

[Alex_M]

Vlado,
here you go - first a comparison and then the vfb settings from the crap looking image.
The problem is the order of operations in the vfb - the burn and exposure should be applied before curves and levels adjustment.

While we are at it - can you do something about the curves adjustment sensitivity? Right now when I click on one of the points to access it's bezier handles the point itself seems to always jump a few points in any direction, then I have to go and manually input the correct coordinates so it goes back. Either my hands are shaking too much or mouse is too sensitive, but it happens like 90% of the time, kind of annoying if I just need a simple S curve adjustment...
Maybe adjusting curves the same way as it is done in photoshop would be a better idea? Seems way more user friendly
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I've been having this problem for ages! Here's a thread I've posted about this in the past - http://forums.chaosgroup.com/showthr...or-corrections
It would be awesome if it's fixed. Now there's some weird clamping going on if exposure settings are used in conjunction with curves.

[vlado]

I've been having this problem for ages! Here's a thread I've posted about this in the past - http://forums.chaosgroup.com/showthr...or-correctionsIt would be awesome if it's fixed. Now there's some weird clamping going on if exposure settings are used in conjunction with curves.

Try the latest nightly build and let me know if it's better.

Best regards,
Vlado

[viscorbel]

Try the latest nightly build and let me know if it's better.
Best regards,
Vlado

Works great for me

[william.morris]

Great! sorry if I am asking an obvious question? how do i download the nightly build for 3DS max?

I have logged into https://nightlies.chaosgroup.com/

And gone through the last couple of days 'dated folders' and theres only vrayblender in there?