dthpham

@lgarczyn Thanks for your report. I'm still unable to reproduce this on my machine so I can't debug this as well as I can with other issues. It's probably a...

Use the -v, --verbose option for more console output.

Ouch, that sounds like an abnormal run time. Kudos for having the patience to stick through the rendering process. If one doesn't change any of the default settings, speed largely...

The reason you're seeing poor performance is because MacBook GPUs are not powerful enough to handle 1080p work. I don't recommend using a MacBook to render anything more than short...

So it's failing at `import cv2` and again at `if not args.sw and not ocl.compat_ocl_device_available():`. Probably a packaging thing (a missing DLL in the package or PATHS weren't set right)....

Just pushed a fix (I hope it works). You can download 0.2.4a3 from the Latest Releases [page](https://github.com/dthpham/butterflow/releases/tag/0.2.4.alpha2) and test it out. I don't have a second Windows machine to test...

Try using the -device option: `butterflow -device 0 `

It might be selecting the wrong device. Run with -vv to confirm your GPU is being selected.