hokay, i know how to colour and render coulds....but streaks?? I can't seem to get it to work. How do you get them to render with mental ray? I can see them using hardware render but i get nothing with mental ray.
Also, once i know how to do THAT...whats the best way to go about making them(or any particle) looking something like a "spark", the kind you might get with metal.
Any suggestions and help would be great XD!