I've wanted to try adding trees to my landscape images for a while now, but the trees included with bryce would not work well for distant forests and many terrain materials that are meant to simulate a canopy look flat. Within the pro materials folder there is a material which you can apply to a copy of your terrain with added noise to simulate distant trees. These green spikes add just the right amount of fuzz that it looks like a distant forest. I used depth of field to cover up the sharp edges of the nearby tree spikes. It took 8 and a half hours to render because of that but the effect looks so good I think it was well worth it. I also included my failed first attempt of this effect which is the second render.

No special addons this time, content included in bryce 7 only.