This may be very basic as I don't know much about raytracing, its a fairly new topic for me. But I've started texturing/lighting a scene this evening and having problems getting good refraction's. The first image posted is the scene how it is at the moment with refraction's turned off on the glass Blinn shader. However in the second image you can see that when I turn refraction's on (currently set to 1.5) all I get is the light being bent from way over at the side and completely loose sight of the contents in the jars. I would of expected the ray to enter the glass and bend then enter the darker material inside and change before coming back out, but it appears to be completely bypassing the contents of both the pepper shaker and vinegar jar. Anyone know what I'm doing wrong?