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# 6 07-05-2006 , 10:30 AM
gster123's Avatar
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Join Date: May 2005
Location: Manchester Uk
Posts: 6,300
As you need two layers with different rendering engines you cant use the render layers option to render the object tehn the sparks.

As a default you should have rendered the Alpha channel, the check box is in the first tab of the render globals near the image type and camera selection.

Whan you import it into a compositing software it should detect it then use the alpha as a mask.

Have a look at the free compositing video on this site as it goes thorugh this very well.

Cheers