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…

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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?

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