GI = global illumination the poser renderer doesnt support advanced lighting effects such as raytracing, caustics, or global illumination (GI). however, there are a few tricks you can use to give the impression of true GI, and at a fraction of the rendering time (several hours) that goes with such lighting calculations. GI calculates the light thats reflected off of and onto objects within the scene from the light sources, giving a much more naturally lit look with soft shadows. many times ive rendered an image in poser with the GI presets and shown it to 3D professionals who were convinced it was rendered in a high-end program like lightwave. there are several intensities of these lights in the set, as well as a 'quickrender gi' light that renders in a much shorter time because it uses less lights (but also sacrifices quality and softer shadows). keep in mind that since these setups use a couple dozen lights, your renders will take slightly longer than with default poser lighting, but its well worth it. as for the spotlights, theyre setups of several spotlights (key lights, fills, etc) to simulate photo studio lighting. the special effects/spotlight enhanced gi lights are a combination of the gi effect and colored lighting/spotlights/intensities/light positioning to give some cool lighting effects. for example, the image rendered above (the faerie) was done using the dryad light. its done using a standard vicky texture (pink skintones), the lighting adds the green tone and luminescance. aside from faerie/goblin/fantasy scenes, its great for underwater as well. among the 27 lights youre sure to find something perfect for your scene, or to spice-up old poser scenes and re-render them. cheers, -gabriel