Flashing when stacking particle/multiply and particle/multiply-double

In an effort to achieve a nice banded/flowing effect for gas giants, I used multiple spheres w particle/multiply and particle/multiplydouble. The end result looks great, minus a odd flashing I get from different angles. It isn't z fighting I don't think since all the layers are using particle blending shaders. Ideas how to avoid this flashing?

 

I'm guessing it actually is z-fighting. Try to disable the zwrite on the particle shaders.

 

"ZWrite Off" is already in the particles/multiply and multiplydouble shaders

just to rule out zfighting I spread each sphere out by 1 full unit of scale and still getting flashing.

A little more info... I do have a 'surface' sphere which uses a planet shader and have tried the surface being different shader types without any change to the flashing.

 

You can set the render queue on those material instances.

 

Thanks brownboot67! I got it working by setting the renderqueue. At first I didn't think it was working because I didn't know this key tidbit from the wiki: http://wiki.unity3d.com/index.php?title=SetRenderQueue

"

• The default transparent queue is 3000."

So setting the the layers as follows works great:

surface planet shader = 0
cloud1 multiply = 3001
cloud2 multiplydouble = 3002
cloud3 multiply = 3003
....