I'm trying to create the sparkling diamond effect on water (know what I mean?). I've been tweaking the 'light rays' effect, but I'm not happy with the result. Can anybody help me?
By the way, I'm not interested in buying third party plug-ins, so no use in referring to those.
try exploring using a bump map. I havent done it much myself, but you might be able use a bump map with the right pattern and composite it with light rays to get the effect you want.