Erroneous 4k (UHD) Output / Horizontal Lines. Bug?
Posted: Sun Apr 11, 2021 1:44 am
Hi everyone,
I'm new to DR and love it for its awesome usability and features. However, I've encountered a weird thing (bug?), where 4k footage is encoded with some horizontal lines/disturbances that can best be described as "interlace(ish)".
My source material is CGI footage at 3840x2160p with 60 FPS (using an AVI container with JPEG compression). DR has no problems handling the material and the project imports nicely into the timeline. Settings for the timeline are set to 4kUHD, 60 FPS.
When I encode/export the final movie (render settings set to 4k UHD, 60 FPS) I get weird horizontal disturbances in the output material that simply do not exist in the source footage.
Source material (cut-out from a 4k shot):
DaVinci Resolve Output:
It looks like some weird form of adding an unwanted interlace to the original material. A zoom on the encoded shot seconds that impression.
Zoom on Output File:
I already put countless hours into finding out what's going on, but didn't find anything. Any idea where that strange "interlace-ish" effect might be coming from?
Thanks,
Tim Boyd
I'm new to DR and love it for its awesome usability and features. However, I've encountered a weird thing (bug?), where 4k footage is encoded with some horizontal lines/disturbances that can best be described as "interlace(ish)".
My source material is CGI footage at 3840x2160p with 60 FPS (using an AVI container with JPEG compression). DR has no problems handling the material and the project imports nicely into the timeline. Settings for the timeline are set to 4kUHD, 60 FPS.
When I encode/export the final movie (render settings set to 4k UHD, 60 FPS) I get weird horizontal disturbances in the output material that simply do not exist in the source footage.
Source material (cut-out from a 4k shot):
DaVinci Resolve Output:
It looks like some weird form of adding an unwanted interlace to the original material. A zoom on the encoded shot seconds that impression.
Zoom on Output File:
I already put countless hours into finding out what's going on, but didn't find anything. Any idea where that strange "interlace-ish" effect might be coming from?
Thanks,
Tim Boyd