distance (m) | screen size (pixels) | how to draw | # of tris |
5 - 40 | 1024 - 128 | full geometry | up to 6000 |
40 - 100 | 128 - 50 | geometry for trunk, 1-poly texture branches |
up to 400 |
100 - 1km | 50 - 5 | 1-2 poly texture billboard | 2 or 4 |
1km - 5km | 5 - 1 | line, if possible | 0 |
> 5km | < 1 pixel | don't draw, part of texture map |
0 |