1#version 120
2#extension GL_ARB_geometry_shader4 : enable
3
4void main()
5{
6  for(int i = 0; i < gl_VerticesIn; ++i)
7  {
8    gl_FrontColor = gl_FrontColorIn[i];
9    gl_Position = gl_PositionIn[i];
10    EmitVertex();
11  }
12  EndPrimitive();
13}
14