Lighting the inside of an object

I have a a ofBoxPrimitive that will light up when the light is on the outside, but not when the light is on the inside. Is there a way to invert the normals? or is it that the material is set just on the outside and I nee to set it on the inside?

You’re right you just need to flip the normals on the mesh itself
, or write the shader to be double sided.

http://openframeworks.cc/documentation/3d/ofMesh/#show_setNormal

I’m new to oF, trying to get set up today, but maybe setNormal could be the one?

in the past I’ve had luck using some variation of this

glLightModeli(GL_LIGHT_MODEL_TWO_SIDE,.....);

to do two sided lighting.

i think that’s it yeh. get the normal, reverse it, reset it.

I’ve gone with 6 planes instead though.