varying vec4 varColor;
uniform vec4 uniColors[4];
void main ()
{
  vec4 col;
  gl_Position = gl_Vertex;
  col = uniColors[0];
  col = (col + uniColors[1]);
  col = (col + uniColors[2]);
  col = (col + uniColors[3]);
  varColor = col;
}