size 320 240
vertex_shader color
fragment_shader gouraud
uniform 2 0 0 -1 0 2 0 -1 0 0 -1 0 0 0 0 1 
vertex_data fffnnn
v 0.0 0.15 2.5 1 0 0
v 0.75 0.15 -0.5 0 1 0
v 0.75 0.85 -3.5 0 0 1
render triangle
