JimBurton is correct - the number of pixels determines the amount of detail in the image not the DPI, which is just the spacing of the pixels when printed - so it does not apply to a monitor since all pixels are spaced between 72 and 96 dpi - depending on the dot pitch of the monitor and screen size. MallenLane has a good point about the shadow map size. I have been working with some "lacy" clothing textures (transparancy mapped) and find that the default shadow map size in Poser makes the lace look blurry because it smears the shadows cast by the lace (which give it the feeling of depth). Crisp and conforming shadows are the strength of raytracing, but to achieve a similar effect in Poser, you need high detail in the shadows cast by any light on the "lace" object and therefore have to maximize the shadowmap size of the light source. This, of course, will sloooow down the rendering in Poser, but I think it will still beat 35 hours!