Trying to Make Rain More Visible

I’ve been working on a render for a couple of weeks where rain is pouring down on two cars. There are 400,000 particles in the scene, and the rain has a mixture of a glossy and a glass shader. My problem is that the rain is very hard to see in the scene (only the droplets refracting the headlights can be seen here), and I’m trying to figure out how to make it more visible. I have my rain material indexed and have tried to sharpen it, but that doesn’t work well and tends to make the result look noisy. This is a Cycles render with 100 samples and a motion blur of 1.00 (lowering the motion blur has not made much of a difference).


Any other advice concerning my render will also be appreciated.

Try making it white instead of glass. I read somewhere that Hollywood adds milk to the fake rain they use on set to make it more visible on film.

Steve S

Thank you so much. It worked like magic, with just a simple diffuse shader mixed in; that was how Andrew Price did it, I just thought it was different in cycles. I’m not crying over this spilled milk.