Just trying to exclude the backdrop from getting shadows cast upon it, two point lights in the setup.
So I deactivated the checkbox.
Shadows still projecting from a pack shot item onto a back cyclorama and deactivating “receive shadows” on the material seems to have no effect.
use an emission shader with a light path node+math node under the factor of a mix shader. My computer’s down so I cant give a screenshot, but that usually works. If you just want a shadeless material and ur not using voxel gi, use an emission shader. For something transparent, use a mix shader with the alpha input in the FAC and a transparent node.