R10 Black Spots?

Am I the only one seeing random black spots on footage in R10? Happens with my CinemaDNG files as well as ProRes, old footage and new.

Most apparent in areas that are bright.

Spots do not show up at all in ACR or in native files.

Confirmed that these are not present in R9 with the same DNGs and ProRes files.

[CaptainHook]

I haven't seen anything like that.. showing up in renders too?

Maybe detail machine specs etc to help narrow down?

Macbook Pro Retina
16 GB
Nvidia 650M

Shows up in Renders as well.

[CaptainHook]

Hmmmm.
OSX 10.8.4/5 ?
Latest Cuda?
New projects or imported projects from R9?
Have you tried creating a new database/project? - maybe backup all projects, uninstall resolve then reinstall, create new database, new project, and test before bringing in old projects. If you've already tried all that, i'm guessing a bug related to your setup somehow since no one else seems to have posted the same issue yet..

How frustrating.

After doing a full reinstall and digging through R10 like a mad man I was finally able to pin down what's going on:

This only happens with CinemaDNG files, and I believe it's got to do with Debayering.

If you have severely overexposed areas in footage (in the actual DNG), you should be able to replicate this by doing the following:

1. Go into the IMAGE SCALING tab and make sure "SHARPER" is selected in the Debayering menu.
2. Go to the SHARPNESS setting in the DNG tab for the specific clip (located under the exposure tab) and ramp the sharpness.

You don't see that these black dots are there until you ramp the sharpness up.

Now, go back and select "SMOOTHER" in the Image Scaling options, adjust the Sharpness to any level -- you have to do this for the dots to disappear, it basically needs new input values to reset the debayering it looks like.

Black Spots vanish.

I'll have to upload a DNG with overexposed portions, but by selecting SMOOTHER debayer I no longer have these spots and can choose sharpness in the DNG tab.

[Rohit Gupta]

After doing a full reinstall and digging through R10 like a mad man I was finally able to pin down what's going on:

This only happens with CinemaDNG files, and I believe it's got to do with Debayering.

If you have severely overexposed areas in footage (in the actual DNG), you should be able to replicate this by doing the following:

1. Go into the IMAGE SCALING tab and make sure "SHARPER" is selected in the Debayering menu.
2. Go to the SHARPNESS setting in the DNG tab for the specific clip (located under the exposure tab) and ramp the sharpness.

You don't see that these black dots are there until you ramp the sharpness up.

Now, go back and select "SMOOTHER" in the Image Scaling options, adjust the Sharpness to any level -- you have to do this for the dots to disappear, it basically needs new input values to reset the debayering it looks like.

Black Spots vanish.

I'll have to upload a DNG with overexposed portions, but by selecting SMOOTHER debayer I no longer have these spots and can choose sharpness in the DNG tab.

Can you post A DNG file and a Resolve exported project which would show the problem?

Yes definitely.

I need to get back to the hard drive with the RAW 2.5k, but I will post the DNG for you.

Here you go Rohit


https://docs.google.com/file/d/0B8-f-XP ... sp=sharing
https://docs.google.com/file/d/0B8-f-XP ... sp=sharing

It's much easier to see if you ramp the sharpness setting in the DNG before changing the debayer, and after you do that, change the debayer to "smoother" then adjust the sharpness again and they vanish.

Might just be my Retina, but I hope not!

[CaptainHook]

Hey Kholi, i just tried these files in R10 and the black dots didn't show, even when i ramped sharpness up to 100. Retina GFX card bug?

Okay cool, so something's going on with my GPU, which doesn't surprise me at all.

I'll see if I can get to the machine at the posthouse to try it as well.

Kholi,

Same problem here on the Retina - with the GT 650M 1GB. Thanks for the debayer fix...

Caleb

I'm having a similar issue, with Resolve 10 lite, Windows 7 64bit, and GTX560, for DNGs captured on my 650d via magic lantern. They look fine in other editing software.

I've seen several other posts on here mentioning this kind of thing, but I'm not sure black magic has identified it as a bug?

Not at my editing computer right now so can't try the sharpness workaround you posted but will report back when I have a chance.