How to remove background line bet. ground and sky?

[gobilman06]

here some somple of what talking about, as you can see on the background there is a line. how to elimnate that line. im rendering using v-ray. thank a lot! appreciate your help.

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[d12dozr]

Use a studio setup like this one from Solo: http://forums.sketchucation.com/viewtopic.php?p=198660#p198660 Actually,reading the rest of that thread may be helpful too

[gobilman06]

thanks for your help...