Issues with Moiré adjustment layers
Hello all,
I'm having two major issues with C1P 8.1 on Windows 8.1 x64 relating to Moiré adjustment layers.
For one thing, C1P frequently tends to freeze when working on Moiré adjustment layers (e.g., modifying the mask or even doing anything else on an image with a Moiré adjustment layer, i.e., an adjustment layer with explicit Moiré removal settings). In these cases, Windows will either detect a stall and terminate C1P, or I have to do so manually.
The second and even worse issue is that these Moiré adjustments are not applied on export: comparing an exported image (regardless of format, I've tried both JPEG and TIF) to the C1P image view at 100% shows that the former lacks the Moiré adjustments while the latter shows them. Can others reproduce this? To check, open an image with Moiré artifacts in C1P, add an adjustment layer (I use to call it "Moiré"), draw an appropriate mask and set the two Moiré sliders to high values, then export and check whether the exported image looks anything like the in-C1P preview. For me it doesn't.
Marco
I'm having two major issues with C1P 8.1 on Windows 8.1 x64 relating to Moiré adjustment layers.
For one thing, C1P frequently tends to freeze when working on Moiré adjustment layers (e.g., modifying the mask or even doing anything else on an image with a Moiré adjustment layer, i.e., an adjustment layer with explicit Moiré removal settings). In these cases, Windows will either detect a stall and terminate C1P, or I have to do so manually.
The second and even worse issue is that these Moiré adjustments are not applied on export: comparing an exported image (regardless of format, I've tried both JPEG and TIF) to the C1P image view at 100% shows that the former lacks the Moiré adjustments while the latter shows them. Can others reproduce this? To check, open an image with Moiré artifacts in C1P, add an adjustment layer (I use to call it "Moiré"), draw an appropriate mask and set the two Moiré sliders to high values, then export and check whether the exported image looks anything like the in-C1P preview. For me it doesn't.
Marco
0
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I've experimented a bit more and found out that this has to do with OpenCL acceleration: If I force-disable OpenCL for all aspects, both of my issues seem to go away. This is with an NVIDIA GTX 660 Ti. 0 -
[quote="NNN635509507115078337" wrote:
I've experimented a bit more and found out that this has to do with OpenCL acceleration: If I force-disable OpenCL for all aspects, both of my issues seem to go away. This is with an NVIDIA GTX 660 Ti.
Marco,
It might be worth checking the driver for the GPU. Is it the latest?
If it is, can you go back one or two ....? (Seriously, nothing to do with C1 but I ran a driver update shortly after I got my current notebook about 2 years ago and it caused some problems with the display. Going back a release fixed them.)
If you have the latest driver and it seems to be the source of the problems then I would suggest creating a Support Case with the Support Team to let them know. There are quite a few technical areas out in the wild that are moving targets making it difficult to be certain about things. That said, in general Windows seems to be in better shape more often than is Mac, although why that should be is a puzzle.
HTH.
Grant0 -
Thank you, Grant. My graphics drivers are up-to-date (as is my system overall). I'll probably go ahead and open a support issue some time, but GPU acceleration doesn't appear to be that much of a performance boost anyway (can't really say I've noticed any difference on my Intel Core i7 system), so I'll just leave it disabled. However, I'd be less suprised if acceleration didn't work at all as opposed to causing obscure issues like these.
Cheers,
Marco0 -
[quote="NNN635509507115078337" wrote:
Thank you, Grant. My graphics drivers are up-to-date (as is my system overall). I'll probably go ahead and open a support issue some time, but GPU acceleration doesn't appear to be that much of a performance boost anyway (can't really say I've noticed any difference on my Intel Core i7 system), so I'll just leave it disabled. However, I'd be less suprised if acceleration didn't work at all as opposed to causing obscure issues like these.
Cheers,
Marco
I use a Dell Workstation Notebook and the additional GPU does not offer enough direct processing power to make it worth using so C1 assesses and then ignores it. The i7 (3rd series) processor seems to cope very well although I would assume that may not be how I would view things if using a top end IQ back or similar.
On the other hand if one was in that league I would imagine that using a high end specification for one's computer would be an automatic decision one would not even have to think about.
I suspect Phase would welcome all feedback about OpenCL with any age and version of GPUs as it would provide knowledge that has a baring on future decisions. As you say the performance for some cards will be measurable but marginal whilst others will likely show enormous benefits so long as one can justify the energy consumption.
I think there comes a time with all developments when the benefit of trying to support units that will never be able to offer a major boost compared to the CPU they run alongside (for aspects of photo editing at least) would suggest that
it would be realistic to stop try to support them. Hard, perhaps, for the users. I have some experience of that as I has to buy a new machine to obtain viable 64bit operation when V7 was released. However the investment was well worth it for the speed increases and the greatly enhanced enjoyment that the package provided - not just for C1 but for other commercial applications with which I work.
Sometimes bullets have to be bitten.
And, by way of contrast, sometimes updates are steps backwards.
You don't by any chance run multiple monitors that are not exactly "matching" do you? I have some interesting experiences with something like that using an NVidia driver update. It was relatively quickly sorted but utterly confused me for a while.
Grant0
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