ID 447527 - Artifacting is present when viewing flat colors in a rendered .mov with the AppleProRes codec

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Problem summary

Scanline artifacts are present when viewing flat colors in a rendered .mov with the AppleProRes codec.

Customer reported version
nuke.12.0v3

Customer reported platform
windows10

Steps to reproduce

1) In Nuke, create a Constant node with the following expressions for RGB:

R = abs(abs(((frame-1)%3)-1)-1)

G = abs(abs((frame%3)-1)-1)

B = abs(abs(((frame+1)%3)-1)-1)

2) Create a Write node with a .mov extension, with codec knob set to AppleProRes 4444.

3) Render the Write node and read in the output.

4) Add a HistEQ node and view the output.

 

Expected behavior
The image should appear as a flat color with no artifacts.

 

Actual behavior
Scanline/interpolation artifacting is present when viewing flat-colored .movs rendered with the Apple ProRes codec.

 

Workaround
There is no available workaround at this time.

 

Reproduced by Support in

Nuke 12.2v5 - Windows 10, CentOS 7, macOS 10.13

Nuke 12.2v1 - Windows 10

Nuke 12.1v1 - Windows 10

Nuke 12.0v1 - Windows 10

Nuke 11.1v1 - Windows 10

Nuke 11.0v1 - Windows 10

Nuke 10.5v1 - Windows 10

Nuke 10.0v1 - Windows 10

Nuke  9.0v1 - Windows 10

 

Earliest version tested
Nuke 9.0v1 - This issue appears to be in all versions of the product
 

 

 

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