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is_screen_triangle_back_facing

psx_gte::scene

Function is_screen_triangle_back_facing 

Source 
pub fn is_screen_triangle_back_facing(vertices: [(i16, i16); 3]) -> bool
Expand description

Back-face test for three already-projected screen-space vertices.

Useful when a renderer cached/projected vertices first and later wants the signed screen-space area test for arbitrary indexed faces. Uses the software screen_area (see its note on the NCLIP MAC0 hazard).