How to turn on lights

My 3D Spin

Where do i look to turn on a lamp or a lantern if there is no option
in Materials. I have some lights products that dosent light - but from
the promo images they are lit!

Richard Haseltine

Iray or 3Delight? Is the issue that they don't cast light, that they don't glow, or both? If Iray you will need to apply the Iray Uber Base shader to the surface to get the Emission colour. For 3Delight use uberArea.

My 3D Spin

Uber shader?     Where do i find  the Iray uber base shader?

JonnyRay

Which product? Many products that have lighting fixtures in them have material presets to turn the lights on and off (for Iray) or have light sets that you can load.

Richard Haseltine

My 3D Spin said:

Uber shader?     Where do i find  the Iray uber base shader?

In the Presets tab of the Surfaces pane it should usually be the first item in Shaders>Iray