[Radiance-general] lighting per pixel or per face?

[Despina Michael]

Hi,
thank you for your answers.

the model is .obj file and I used obj2rad to convert it in .rad file. Then I
added in .rad material and lighting info and use rpict to illuminate the
object.

It's not a "perfect cylinder" and this is the reason I don't use radiace
primitive cylinder (it just looks like a cylinder)

Can you tell me please how I use obj2mesh command?

I tried this
obj2mesh model.obj > out1.rtm
but it does not seem to work. There is an error: obj2mesh: fatal -
unreferenced uv coordinates

Thanks,
Despina