[dustingetz]

i speculate this particular case is done entirely in software.

[ajg1977]

And when it launched, Quake 2 supported software rendering at fairly respectable framerates.

My point is that for applications that requires any degree of processor power javascript will struggle to match native hardware that's many generations old.

[dustingetz]

processing power isn't the point; the browsers must/may evolve to expose hardware features.