6 * From page 20 (page 26 of the PDF) of the GLSL 1.20 spec:
8 * "There are no implicit array or structure conversions. For example, an
9 * array of int cannot be implicitly converted to an array of float."
19 gl_Position = vec4(b[0].x, b[0].y, b[1].x, b[1].y);