Yafray, lighting

I have a scene with four layers with a light on each and lamp for under water effect,

I was attempting to do volumetrics

but yafray only seems to be handling one of the lights…


Make sure that all the layers are set to render in the render panel.

Make sure the “Layer” option isn’t set on in the lamp options.

I was working on using multiple layers of water, with gradual decreasing opacity, so that I could fake volumetric shadows, but each layer blocks all light from the others… ray tracing appears to only effect the surface so I was using z-tranp and having depth created by each seprate layer, so I was attempting to use photons in yafray…

can yafray handle Light grouping and only iluminate from lights in group?