Wraitii, the high-contrast effect is due to the fake HDR, which is half-necessary for the bloom effect. I could reduce it, but I kind of like it this way Anyway, the halos were easy to fix once I stopped being lazy. People suggesting not to render on the terrain were onto the right track, and there's actually no need for an extra buffer: the models can be rendered first, then have the effect applied, then render everything else with depth testing on. New example: http://imgur.com/Tfa1b