Two sided lamp materials on Chaosgroup site don't illuminate

[ANDREW_CHAN]

I downloaded a few materials of your website:
Lamp 2sided
Lamp 2sided3
Old Shade

They all look like emissive materials, but when I loaded them, none of the materials had emissive layers to them.

Is there any way to get these to work like the preview thumbnails?

Thanks,
Andrew

[fpedrogo]

The two sided material is to simulate translucency on a thin object, but they don't produce illumination by themselves unless one of the sub-material have an emissive layer. The reason why they are illuminated is because I added a omni light inside the material studio geometry to let the user know the effect of the two sided material. So best way to get the same effect of the material preview is placing a light inside the object with the two sided material.

Best

[ANDREW_CHAN]

got it- great materials! Thanks so much!!