1#version 430
2
3layout(location = 0) in vec4 in_position;
4layout(location = 1) in vec4 in_color;
5layout(location = 2) in int in_refVertexIndex;
6
7layout(location = 0) out vec4 out_color;
8
9out gl_PerVertex {
10    vec4 gl_Position;
11};
12
13void main() {
14	vec2 perVertex = vec2(in_position.x, in_position.y);
15	vec2 perInstance[6]	= vec2[6](vec2(0.0, 0.0), vec2(0.3, 0.0), vec2(0.0, -0.3),vec2(0.3, -0.3), vec2(0.7, -0.7), vec2(-0.75, 0.8));
16
17	gl_Position = vec4(perVertex + perInstance[gl_InstanceIndex], 0.0, 1.0);
18
19	if (gl_VertexIndex == in_refVertexIndex)
20		out_color = in_color;
21	else
22		out_color = vec4(1.0, 0.0, 0.0, 1.0);
23}
24