Is there a way to have objects assigned refractive materials show through other objects that are assigned the same refractive material?
For example, in the following playground example, notice that the parts of the torus knot that are obscured by other parts of the knot don’t contribute to the refracted image:
Even if one of the rotating balls is changed to the same refractive material, it still does not contribute to the refraction through the torus knot when it passes behind.
Is there any way to achieve this effect or convincingly fake it?
Thanks in advance.