In addition to setting the decay to inverse square, you need to set the Start for the decay to 1.0 (in generic units, not display units). Then the caustics intensity will match the actual illumination produced by the light.
Best regards,
Vlado
In addition to setting the decay to inverse square, you need to set the Start for the decay to 1.0 (in generic units, not display units). Then the caustics intensity will match the actual illumination produced by the light.
Best regards,
Vlado