To be honest, there is no easy way to do that in the free version. Pro has explosions, but the free version - unfortunately not. Im going to be making a scene soon with some new ships in a fight scene and I was going to use the explosions from NOVA and their masks to overlay an explosion in Photoshop.
I suppose it might be possible to make one with some custom textures and a mixture of the fountain and aura effect. Im just packing to go home for the summer at the moment and I will give it some thought over the next few days and see what I can do. If I get something that looks reasonable I will upload it for you
I take it this is for an explosion for use in game, not just for a pic? If its just for a pic, then overlay the expolsions in Photoshop. If you dont have Photoshop you could email me the scene and I will compose one for you...
Best of luck
ewan
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