object properties: caustics multiplier

[super gnu]

either im missing some step somewhere, or the per-object caustics multiplier is broken?

attached image shows 6 spheres, 3 materials.. first refractive, second glossy refractive with fog and interpolation, third with hybrid translucency.

back row has caustics multiplier of 1

front row has caustics multiplier of 5

no visible difference i can see.

also, out of interest why do the caustics look much smoother from the hybrid translucent one than the glossy refractive one?

[super gnu]

ok so i tried a caustics multiplier of 50,000 on the front row... result attached. strange it effects the front spheres, and to a small extent the back row (which still have a multiplier of 1.0) but no affect on the floor.

looks like its behaving as a recieve multiplier not a send multiplier.. (apart from the splotches on the rear spheres) but the spot 3d manual states:

Caustics multiplier - this value is a multiplier for the caustics generated by the selected object(s). Note that this value has no effect unless Generate caustics is checked.

[vlado]

The multiplier is for received caustics, not for generated ones. I corrected the spot3d page - sorry for the confusion.

Best regards,
Valdo

[super gnu]

thanks for the reply.. since my requirement was to increase the caustic effect coming through the glossy and sss materials, is a "generate caustics" multiplier actually possible? or alternatively, another slot in the "override material" for a caustic material?

[vlado]

It might be possible and I'll make a note to add a "generate caustics" multiplier, but for the moment you can create a separate brighter light just to generate caustics for these objects.

Best regards,
Vlado