GPU Configuration and Troubleshooting
Nobe Color Remap supports GPU processing in CUDA, OpenCL, and (on macOS) Metal.
CPU mode is also available, but it is much slower and intended only as a fallback.
Processing behavior depends on three settings layers:
DaVinci Resolve GPU mode (
Auto/CUDA/OpenCL/Metal)OpenFX plugin processing mode (
CPU/GPU)Nobe Color Remap settings for Window Mode (
Auto/CUDA/OpenCL)
DaVinci Resolve GPU Settings
Resolve GPU mode controls how Resolve processes frames internally and affects plugin processing in Overlay Mode.
Available options include OpenCL, CUDA, Metal, and Auto:
You can also force plugin CPU processing in the OpenFX controls:
GPU Settings in Plugin Options
The plugin Settings window also has a GPU mode option.
This setting applies to Window Mode only. Window Mode processing runs independently from Resolve, so it can use a different backend.
Example: Resolve can run in OpenCL while the plugin dialog runs in CUDA.
If set to Auto, Window Mode follows the GPU mode currently used by Resolve.
Advanced GPU Settings
On multi-GPU systems, you can set the OpenCL device manually in config.json using opencl_device.
Typical config file locations:
Windows:
C:\Users\USERNAME\AppData\Local\NobeColorRemap\config.jsonmacOS:
/Users/USERNAME/Library/Application Support/NobeColorRemap/config.json
Add or edit the opencl_device value in the config file:
DaVinci Resolve 16+ Notes
When upgrading from older Resolve versions, the Color Distribution graph may disappear.
If that happens, make sure the option shown below is disabled in plugin settings (Overlay Mode):
On older Resolve versions (12.5 and 14), disabling this option can cause large slowdowns.
Recommended legacy setup:
Resolve 12.5 and 14: Direct Frame Access enabled
Resolve 15, 16, 16.1+: Direct Frame Access disabled
Collecting Logs for Bug Reports
Include plugin logs when reporting issues. Use the Logs button in the utility app:
Image/Viewer Issues Checklist
If viewer image issues appear, or if Color Distribution is missing in Overlay Mode, try:
Disable Enhanced Color Picker in Options > Settings
Enable Fetch RGBA Texture in Options > Settings
Disable Use optimized image transfers for viewers in Resolve
Disable Direct frame access in plugin settings
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