2 pass renders and blending

Blitz3D Forums/Blitz3D Programming/2 pass renders and blending

Ok, forgive my programming dodginess, what I want is the following;

I want to display my level geometry with essentially three texture layers using three different UV sets. Basically the level texturing (e.g. wall textures), a lightmap (say from Giles), and then for quick and (very) dirty lighting effects (avert your eyes Halo), a planar mapped bitmap onto which light circle's can be drawn to give brilliant 'flashes of light'.

I thought a possibility would be to render the level proper (with wall textures and lightmap) and then do a second pass rendering a copy of the level showing only the planar mapped light circle, and then blending the two renders.

Is this possible?