At lower poly counts, using one copy of the tree can be faster. Once you get into the 60,000+ range, it will be much faster to collapse all your trees into one.
I use anywhere from 4 to 30+ passes in my engine, so it is an okay technique. It's also really useful for seeing which prts of your renderin process take the most time.
I use anywhere from 4 to 30+ passes in my engine, so it is an okay technique. It's also really useful for seeing which prts of your renderin process take the most time.