Ochen6 mnogo zavisit ot togo, skolko tebe polygonov na derevo otpusheno. I ot kachestva texture. Mozhno i na perekreshivayushihsya polygonah klassnoye derevo sdelat6. Ya ne videla urokov po low-poly derev6yam, no ya stroyu obichno paru vetok dlya dereva, texturku risuyu tshatelno, s alfoy estestvenno, razmnozhayu ih po derevu, nu i modificiruyu ih.