I haven't really played with the volumetric spheres much, at least to the point where they're overlapping. In this pic which is something I'm working on, at the left you can clearly see the edges of 2 of the spheres that the volume mats were applied to. There are no volume lights, and the "atmosphere" is just a solid black color map for the sky, and is not volumetric. There is no fog or haze used at all. I think the problem is being caused by the point light at the left with the lens flare. Anyone have any tips for using the volumetric materials in strong lighting and not getting such artifacts?

WEll Mike, I really don't know much about that, but I just wanted to say, that this is looking good, it definitely looks like a nebula out in space... I'm sure you'll figure out the technical aspects... :)

This is looking very cool! A bit different kind of scene for you and coming along nicely. I don't know if this would help, but I'd try enlarging the "blue cloud" material and see if that helps. Also, check to be sure the cloud spheres aren't intersecting at all. Just guessing. Good luck with this! :)

Thanks for the comments. This is far from done, really, but I'm hoping to figure it out before I get too far into it. The spheres are in fact intersecting. I want them too, for that matter, and I would figure I should be able to have them do so and to have Vue render them right. :P But I had shadows turned up pretty high for the lens flare light on the left, and had forgotten about that. Turning the shadows down has fixed it a little but has also taken away some of what I like, too... I'll keep at it. :) Also I'm planning on using this as a backdrop for an animation, in case you're wondering why I go from my usual to this....

'Morning Mike . . . I tried to duplicate the visible sphere edge as in your image, but I couldn't do it. In this image there's 3 spheres with volumetric materials applied, in 3 different colors. All 3 of the spheres overlap. I put a light in the scene, but didn't increase the shadows any, maybe that's why I didn't get the edge to show up??? Anyway, just thought I'd give it a try & see if I could figure out what's going on. Sorry I couldn't be of any help. 8^( A very nice looking image . . . Have a good one . . . Mark. 8^)

No help here either. Just have to say I love that image. If you hadn't of said there was a problem I wouldn't have noticed. Looks great. Okay, I admit I'm a sci fi fan ~G~

yeah, send it to me! no, not to fix it, i just like pretty nebulae ;) erm... okay, if shadows are a problem, then turn off 'accept shadows' on the sphere mats? and/or cast shadows? not sure if volumetric materials have those options. btw, this reminds me, although it's off on a tangent... can you get hein's sphere clouds vobs to work in the latest patch(es)?