[FIXED in R15 b8] : Metal (FULL) Debayer of R3D Corrupts

BM Team,

I have created a 6 step guide (ie pics) to help you reproduce the DEBAYER bug (screen corruption).

WORKS : Half Res. Good
CORRUPTS : Half Res. Premium & Full Res. Premium
Footage : 8k FF : a 10 frame clip

Is this something that you have also noticed?
Can you confirm that you also have the same issue when METAL is used as the 'GPU Processing Mode'?

AJ

====================

UPDATED : 2018_08_09 : Initial retesting : This is FIXED in R15 Beta 8.

Thankyou BM team!

Pic 0 - Change to METAL as GPU Renderer
Pic 1 - Empty timeline
Pic 2 - Drag 8K R3D (10 frames) into Timeline
Pic 3 - Before : (no corrupted yet) : Debayer Quality = Half Res. Good
Pic 4 - Not saved yet : Update Debayer Quality = Half Res. Premium
Pic 5 - After Saving : Screen is CORRUPTED.

The same corruption occurs with 'Full Res. Premium'

If you an example R3D file - please let me know.

AJ

I have uploaded the 10 frame R3D (its only 56MB) to dropbox:

https://www.dropbox.com/s/ieg9eo1tlre1t ... C.zip?dl=0

AJ

[Dwaine Maggart]

I'm not sure, so can you clarify that the corruption is the solid white image in the 5.jpg image?

I am not seeing that here, on a similar 6,1 MacPro with your 10 frame clip and similar settings.

Can you try setting the "Use Red Rocket for" selection to Decompression only and see what that does.

And also try setting it to None and see what that does.

One big difference in my testing is that I do not have a Red Rocket-X card to test with. The issue may be related to it. But the Monstro footage can't be debayered by the Rocket-X anyway. So that probably should not matter. But that would appear to be the only significant difference between your setup and mine.

Thankyou for your assistance Dwaine,

I uploaded a ZIP with two projects - BOTH of which have the screen corruption:
+) BREAK METAL 1 : Use_Red_Rocket_for = RED_Decompression_and_Debayer
+) BREAK METAL 2 : Use_Red_Rocket_for = RED_Decompression

https://www.dropbox.com/s/eecjn32u04ssj ... L.zip?dl=0

Symptoms :
+) When the CLIP plays - it is ok
+) When the PLAYHEAD is stationary - the Screen displays corrupt data.

Regards,
AJ

Another data to help diagnose (or perhaps reproduce) the issue:

When CAMERA RAW : RAW Profile_RED :

Decode Quality = Half Res. Premium : Bit Depth 16 ==> CORRUPT screen when Playhead is Stationary
Decode Quality = Half Res. Premium : Bit Depth 10 ==> CORRUPT screen when Playhead is Stationary
Decode Quality = Half Res. Premium : Bit Depth 8 ==> CORRUPT screen when Playhead is Stationary

Decode Quality = Half Res. Good : : Bit Depth 16 ==> WORKS
Decode Quality = Half Res. Good : : Bit Depth 10 ==> WORKS
Decode Quality = Half Res. Good : : Bit Depth 8 ==> WORKS

Suggestion : Would it help if you exported your project to see if it works on my machine?

Thanks,
AJ

[Dwaine Maggart]

I'm just trying to make sure what the corruption looks like.

Is it a solid white image, as in 5.jpg, or does it look like something else? And if it's something else, do you have a screen shot of that?

Dwaine,

Apologies .... I was waiting patiently for a response and I now see you were waiting on me.

The corruption looks exactly like 5.jpg.

Is there any chance you could share me your Davinci preferences that work for you?
If I could set up a version that works - I could find the setting that is causing issues.

Right now .. I've tried hundreds of variations - including creating databases from scratch - they all have the same issue.

Let me create a step by step guide to reproduce the problem.

AJ

Step 1 : Create new Database

AJ

STEP 2 : CREATE new project

AJ

STEP 3 : Project Camera Raw : RED setting

AJ

STEP 4 : Decode Quality : Old value = Half Res. Good

AJ

STEP 5 : Decode Quality : Update to 'Full Res. Premium'

AJ

STEP 6 : Get 8K R3D ready (that you have from Dropbox earlier in thread)

AJ

STEP 7 : Drag R3D onto Timeline

AJ

STEP 8 : Timeline image looks good :

Timeline 1 Viewer is CORRUPT.

AJ

STEP 9 : Open up Project settings : Decode Quality : Old_Value = Full Res. Premium

AJ

STEP 10 : Update Decode Quality to : Half Res Good -> Save

AJ

STEP 11 :

After updating the Project settings : Decode Quality => The Corruption is Fixed.

AJ

I can't reproduce that here on a 2017 iMac with the Radeon Pro 580.

While it can't play the footage back in realtime (of course), the bug is not showing.

Could it be the D700 GPU? What is your timeline resolution?

Thankyou very much for trying to reproduce this Uli.

+) RED Cine X : NO_PROBLEM doing a FULL debayer on the same system.
+) RED Player : NO_PROBLEM doing a FULL debayer on the same system.
+) Final Cut X : NO_PROBLEM doing a FULL debayer on the same system
+) Resolve : CORRUPTS : Either when HALF Debayer Premium or FULL Debayer is selected.

What is Strange is that RESOLVE has no problem Playing -> CORRUPTION occurs when PAUSED.
When Rendering - RESOLVE arbitrary Corrupt frames.

I have asked BM if they could share with Resolve Preferences setting earlier in the thread as they also have a Mac Pro 2013.

What I'll do is list my Preferences in this Thread. Perhaps there is a non-default setting that is causing Resolve to behave unexpectedly?

AJ

My Resolve Preferences :

1, 2, 3

AJ

Preferences : 4, 5, 6

AJ

7,8,9

AJ

10, 11, 12

AJ

13,14

AJ

15, 16 (complete).

I have Tangent Ripple installed (but not in use)
I have RRX installed (and used for Decrypting / Decompressing)

AJ

Black Magic.

After input from ULI - I attempted further tests - and think I have found the area.

1) WORKS ON RESOLVE
+) GPU Processing = Metal
+) 'Use Red Rocket for' = None
+) 'USE GPU FOR RED Debayer' = YES
+) Decode Quality = Full Res. Premium

2) WORKS ON RESOLVE
+) GPU Processing = Metal
+) 'Use Red Rocket for' = None
+) 'USE GPU FOR RED Debayer' = NO
+) Decode Quality = Full Res. Premium

3) WORKS ON RESOLVE
+) GPU Processing = Metal
+) 'Use Red Rocket for' = R3D Decompression
+) Decode Quality = Half Res. Good.

4) CORRUPTION IN RESOLVE WHEN PLAYHEAD NOT MOVING (or when Background RENDERING)
+) GPU Processing = Metal
+) 'Use Red Rocket for' = R3D Decompression
+) Decode Quality = Half Res Premium

5) CORRUPTION IN RESOLVE WHEN PLAYHEAD NOT MOVING (or when Background RENDERING)
+) GPU Processing = Metal
+) 'Use Red Rocket for' = R3D Decompression
+) Decode Quality = Full Res. Premium

6) WORKS ON RESOLVE
+) GPU Processing = Open CL
+) 'Use Red Rocket for' = R3D Decompression
+) Decode Quality = Full Res. Premium

BM Team - let me know if you are able to reproduce this problem, or if you need further input from me.

Thankyou,
AJ

When Rendering - RESOLVE arbitrary Corrupt frames. J

Well, that could be a known problem with the GPUs in the nMP, it seems to result from overheating.

It's already late on this side of the planet, but I'll try to reproduce all your settings on my machine tomorrow, based on your excellent description.

Uli,

Thankyou for offering to reproduce this.

On this occasion - I believe this is a problem that BlackMagic will need to chime in on.

+) Testing immediately after the machine switched on when cold : METAL + RED ROCKET causes problems (ie when GPUs are cold).

+) The corruption happens ONLY when METAL is selected, and ONLY when RED ROCKET is chosen to Decompress (Ie Dectrypt) - and ONLY when DEBAYER is Half Res. Premium or Full Res. Premium.

Most importantly - when METAL is not used and OPEN CL is selected - there are No problems at all.

As OPEN CL uses the same D700's GPUs - this would seem to indicate there is something else wrong.

AJ

So you've got a Rocket-X and it only happens when it is active?
I'm out of the loop then, sorry.

[Dwaine Maggart]

I'm also out of the loop, as I do not have a Red Rocket-X card here to test with.

Hopefully someone on the dev team with access to the card can test this.

Thanks for the update Dwaine.

If the Dev needs anything - let me know.

AJ

[Shrinivas Ramani]

Thank you for the incredibly detailed report Anthony. We'll take a look at it shortly.

Much appreciated Shrinivas.

As I believe that the following thread has another RED related R3D Debayer coding bug:
viewtopic.php?f=32&t=75862

Could I ask the Developer to also look at it?

If you want to see the corruption .. I got caught out by this one .. as I didn't carefully check every single frame for corruption before uploading to Vimeo.

Between 1:20 and 1:35 .. the bug happens 5 times .. flashing bright white trails of White dots either horizontally or vertically.

(you'll need to watch in 4k to see it)

<REMOVED VIDEO - AS IT HAS NOW BEEN REPLACED BY ONE THAT FIXIED BY HAND TO REMOVE CORRUPTION>

AJ

I confirm that I have the same issue. When using the Red Rocket X card at any level of debarring that includes premium I get nothing but noise rendered for playback. However after reading this post found that if override GPU from auto to OpenGL it seems to work ok at premium render levels.

"<snip>if override GPU from auto to OpenGL it seems to work ok at premium render levels." Yes.

FYI : BM have confirmed that are able to reproduce this issue in their labs.

AJ

I have managed to reproduce similar corruption with OPEN CL on the FUSION tab.

** BETA 6 **

Only 1 occurrence so far.

+) I duplicated the TIMELINE -> new timeline did not have Corruption
+) I switched back to the original TIMELINE -> FUSION displayed a corrupt frame (of R3D footage)
+) I changed Red RAW to Half Res Good -> Corrupt frame replaced with CORRECT data
+) I changed Red RAW to Full Res Premium-> Corruption did not return.

Thoughts : I don't know how to reproduce this - but will see if I can zero in on the conditions next time it happens.

AJ

Retested METAL DRIVER + R3D + Half_res_Premium or Full_res_Premium DEBAYER.

This is still failing with RED MONSTRO footage.

AJ