@startuml
:Triangles;
:Vertices;
if (Vertex cache?) then (hit)
  :Load vertex;
else (miss)
  :Transform & Store vertex;
endif
:Transformed triangle (clip space);
:Clip;
:2D triangles;
:Backface cull;
:Rasterize;
:Pixels;
if (Depth test?) then (pass)
  if (Alpha mask?) then (opaque)
    :Write pixel;
  else (transparent)
    :Discard;
    stop
  endif
else (fail)
  :Discard;
  stop
endif
stop
@enduml