vintorix opened this issue on May 09, 2011 · 58 posts
Rich_Potter posted Tue, 10 May 2011 at 6:25 AM
since you are using a image for your river, and it has the foam already included, the best option, in my mind, is to make a transparency map based on where you wan the foam to be, so black (or white?) where the foam is and the white (or black?) where the water should be. but the one you want transparent should be a grey really since it shouldnt be 100% transparent.