Fix lighting on hardware that does a crap job of fract().

[chrisforbes]

Signed-off-by: Chris Forbes chrisf@ijw.co.nz

[chrisosaurus]

this improved the look of the lights themselves on my thinkpad

before:

after:

[chrisforbes]

That looks completely broken on your machine. But consistent!

On Tue, Jul 28, 2015 at 10:36 PM, Chris Hall (cjh) <notifications@github.com

wrote:

this improved the look of the lights themselves on my thinkpad

before:
[image: before]
https://camo.githubusercontent.com/a554704f486f243f52cf95f6c988bac6b6b4e318/687474703a2f2f7365676661756c742e6e65742e6e7a2f25374563687269732f656e5f6265666f72655f6669785f6c696768696e672e706e67

after:
[image: after]
https://camo.githubusercontent.com/c742e5746f881a737bc2091892493539aa204d7c/687474703a2f2f7365676661756c742e6e65742e6e7a2f25374563687269732f656e5f61667465725f6669785f6c696768696e672e706e67

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