bump map repeat problem

[rosone]

my texture map is not repeatable, fixed 1024*1024, but I want a repeatable bump map, but it doesn't repeat when I set repeat.set(2,2), however the bump map was zoomed in, is this a bug?

I've tried to make a 1024*1024 bump map, but it was still zoomed in.

here is the effect:

below is bump map

[WestLangley]

See http://stackoverflow.com/questions/14371385/can-a-three-js-material-have-separate-repeat-values-for-a-bump-map-and-a-texture

[WestLangley]

Related: #8278 enhancement