Iray shading question: glass over painted surface

aaráribel caađo

I want to crete the look of a piece of glass with a painted backside. Is there a good way to approach this? The first thing I want to do this to are eyeglasses I modeled, so I could assign the painted faces to a new surface, but I'm not sure how Iray will interprolate it if one side of an object is glass and the other is a solid.

Mechaven

aaráribel caađo said:

I want to crete the look of a piece of glass with a painted backside. Is there a good way to approach this? The first thing I want to do this to are eyeglasses I modeled, so I could assign the painted faces to a new surface, but I'm not sure how Iray will interprolate it if one side of an object is glass and the other is a solid.

If two different materials on either side of the lens doens't give you the look you want what you could do is add in another piece of geometry behind the lens. Duplicate the inside polygons and move back slightly, flip the normals and use that as your painted surface.

aaráribel caađo

Mechaven said:

aaráribel caađo said:

I want to crete the look of a piece of glass with a painted backside. Is there a good way to approach this? The first thing I want to do this to are eyeglasses I modeled, so I could assign the painted faces to a new surface, but I'm not sure how Iray will interprolate it if one side of an object is glass and the other is a solid.

If two different materials on either side of the lens doens't give you the look you want what you could do is add in another piece of geometry behind the lens. Duplicate the inside polygons and move back slightly, flip the normals and use that as your painted surface.

That sounds perfect—I could use geoshells to create the second surface without worrying about complicated modelling issues, too. Thanks