I'd like to create a material such as this in Blend4Web (and if it can be done in BI, chances seem good the same approach can be adapted for Blend4Web):
I've rendered the above image in cycles via a tiled tangent texture plugged into into the Tangent input of an Anisotropic shader:
Unfortunately, while BI does have a tangent shading option, I can't find a way to control the tangent direction quite so easily in BI. Is this sort of thing possible? How can it be done?
Here's the .blend with the shader for reference: