Hi Nicholas, Thanks for the comments on the frog :) . I'll make some tries concerning the thickness . The texture of the tongue is not finished, and i hope it will look more realistic when done . Concerning lags, well actually if you set the smoothing level too high you may have some delays . A smoothing level of two is enough for modelling in most cases and doesn't give me any delays . Then, you can set it higher for rendering if you want . I think the particles have collision detection, yes ... though i'm not sure . I'll check when my current rendering is finished . I'll show you a bit of the bones system too then . Later, litst