opengl - Question on rendering grass using billboard texture -


every one, have been doing work on rendering grass using billboard textures recent days, , met problems, looks not bad when camera'angle xz plane not big, when angle bigger until camera on top of billboard, looks bad, cross line can seen, , not real grass.

enter image description here

enter image description here

so problems follow: 1. tell me how fix problem?(looks cross) 2 what's more, did not add light or other shader effect, result looks not real, , more important factor texture used not enough, provide better texture? , teach me how add light effect , shader effect? lot. regards.

use billboard grass in distance, , real, or @ least more detailed geometry close.


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