size 500 500
vertex_shader trivial
fragment_shader white
vertex_data fff
v 0 0 0
v .5 0 0
v 1 1 0
v 0 .5 0
v -1 1 0
v -.5 0 0
v -1 -1 0
v 0 -.5 0
v 1 -1 0
v .5 0 0
render fan
