I've wasted too many hours trying to get these things working and this is my final shot at it.
I'm using this plugin: https://github.com/terryma/vim-smooth-scroll
Where I've placed the .vim file in ~/.vim/plugin and added the code on the readme to my .vimrc
When I open vim in iTerm2 and scroll a large file, Ctrl+U/D work the same way as they do by default. But when I use the default terminal that comes with OS X, I can see the file scrolling smoothly.
How do I fix this?
PS: I also tried placing the .vim file in ~/.vimrc/bundle (I have pathogen). Yet no go.
Have you added key bindings to your .vimrc?
let g:smooth_scroll_duration=50
map <silent> <c-u> :call smooth_scroll#up(&scroll, smooth_scroll_duration, 2)<CR>
map <silent> <c-d> :call smooth_scroll#down(&scroll, smooth_scroll_duration, 2)<CR>
map <silent> <c-b> :call smooth_scroll#up(&scroll*2, smooth_scroll_duration, 4)<CR>
map <silent> <c-f> :call smooth_scroll#down(&scroll*2, smooth_scroll_duration, 4)<CR>
map <silent> <PageUp> :call smooth_scroll#up(&scroll*2, smooth_scroll_duration, 4)<CR>
map <silent> <PageDown> :call smooth_scroll#down(&scroll*2, smooth_scroll_duration, 4)<CR>