cached mode looks good in kray but noisy and longer render time.
btw does kray now support shadow density flag? so necessary to composite objects
atleast some on this list and kray will rock
unseen by camera flag, unseen by ray flag, Cast Shadow flag, diffuse and specular light flags, per-light shadow casting, matte colors, constant alpha, unseen by alpha, opacity alpha, shadow alpha, object unseen by alpha, object dissolve, unaffected by fog, self shadow, clip maps, solid and gradient backdrop, ImageWorld and Texture Environments, background images, depth of field, built in fog (all options), reflection, refraction enable flags, trace shadow enable, and ray recursion limit.
