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Comment by Philipp__ | Hacker News Reader

Wow, just gave iTerm2 Nightly with Metal renderer a spin! Holy shiet it's fast and smooth! FINALY! Opened 20k C file in Vim (stock vim 8 that comes with macOS High Sierra), pushed that scroll down and let it roll, it was soooo smooth! Amazing!

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I tried it after reading this comment. You weren't kidding. Unfortunately, my Vim isn't rendering properly. About 10 lines in the middle of the screen are blank for some reason. Both in and out of Tmux. Oh well. I'm just happy that I can look forward to Metal rendering being merged into stable.

Not sure if it's the same issue I had recently with iTerm2 periodically going black, but consider disabling the Core Text renderer with the following command:

$ defaults write org.vim.MacVim MMUseCGLayerAlways -bool YES

This was the developers' suggestion and it solved my issue. There's an informative discussion of the root causes here: https://github.com/macvim-dev/macvim/issues/557.

Hmm, that didn't see to work for me. I think I have a different issue. Thanks, though!

Is there a way to install that with homebrew?

    brew cask install iterm2-nightly

I had to:

    brew tap caskroom/versions

as well

Thanks guys, I was a bit embarrassed to ask that question but I suspected the answer wasn't quite intuitive.

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