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I posted this over on www.sidefx.com but this site seems to get more love. Still pretty new to Houdini but done some searching around on this topic and could use some input. Hi there, I'm trying to shade a fairly long haired dog which has almost white hair with lots of blonde/yellow coming through on the denser area's, especially when backlit. I'm almost getting there with the inbuilt Hair Shader but was wondering how others are doing this? At the minute I can turn on Transmit Objects which produces a nice backlit effect but is incredibly heavy to render. Is this essentially path tracing dual scattering? The other option is to only use Transmit Lights to get some transmission and use the Fake Caustic options under opacity to lift the darker shadows, which renders quickly but doesn't have the depth of going the full Transmission route. Are there any ways to cheat the dual scattered look? I've had a read of the papers but its a bit beyond me… Any help is much appreciated Martin