P: Artefacts when using shadows, clarity and image warp (lens corrections)

Strange... with clarity and shadows set to zero, I have never seen any problems with lens correction warp. But perhaps there are other settings that will show similar artefacts together with warping. Hopefully, they will all be fixed in the next LR/ACR versions.

By the way: ACR 7.1 RC has the same bug.

P.S. Why is this problem marked "solved" now? All latest PV2012-capable ACR variants still have this bug: ACR 6.7 final for CS5, ACR 7.1 of LR 4.1 RC2 and ACR 7.1 RC for CS6 (don't know about ACR 6.7 final for PSE/PRE, though). Or does it just mean "internally solved", i.e. bug was found+fixed, but did not make it into an update yet?

My link is referenced in the original post of this thread and just to be clear about the issue I have observed:

"When" the Lens Correction Panel is enabled (including the "Color" tab) - AND when I apply Clarity - I get major peculiar artifacts tot he right of my moon shot.

When Lens Corrections are Not Enabled - I can have Clarity set to 100 - and I see Zero Artifacts, nor do I discern any weird results.

"When" I have Clarity set to "0" with Lens Corrections Enabled - I get major purple fringing and other color anomalies.

(Thus - originally I assumed it was a "Clarity" slider issue - as the title indicates - but in fact in my case it is distinctly a Lens Correction issue (when using the Clarity slider)

I can provide a Tiff and my Lr4 catalog to Becky or any Adobe staff at their asking.

Thanks for the opportunity to help.

Just for fun: A ridiculous application of LRTimelapse and GIF animation:



Click on preview to see the animation (1 MB). Lens correction -> manual -> rotation varies between 0...2.5 (100% crop, shadows and clarity at +100).

Sorry if this caused any confusion. My feedback was intended primarily for the Adobe LR engineering team.

Statements like that could give users the wrong idea about Lightroom's feature set. To be clear: There are no Layers nor Layer masks in Lightroom. There may be mechanisms that can be described analogously in that manner.

If the furor the Kelby group and onOne had to deal with regarding the marketing of Perfect Layers is any indication, we want to avoid imprecise descriptions that can be confused by the user base.

Just my opinion of course.

I think what Todd Shaner means is that it looks like if Lightroom calculates some internal (!) masks for shadows and clarity, and that these masks are not correctly scaled and/or transformed along the different kinds of lens warp.

Of course, we normally don't see those masks.

EDIT: Sorry, somehow I did not see the answer from Todd Shaner above this post. So my post is redundant 😉

Just a guess. I was referring to the layer masks LR's rendering engine creates internally to apply the user adjustment settings to the raw image.

Adjustment Layer Masks?

Thanks for posting and it looks like Adobe has already acknowledged this as a problem.

I'll add that the artifacts appear to be caused by aliasing of the adjustment layer masks.