size 500 500
vertex_shader trivial
fragment_shader white
vertex_data fff
v 0.8 0.8 0
v 0.8 0.6 0
v -0.8 0.8 0
v -0.6 0.6 0
v -0.8 -0.8 0
v -0.6 -0.6 0
v 0.8 -0.8 0
v 0.8 -0.6 0
render strip
