layout(triangles, invocations=1) in;
layout(line_strip, max_vertices=4) out;
out vec4 fcfinal;
in vec4 fcolor[];

void main(){

	gl_Position = gl_in[0].gl_Position;
	fcfinal = fcolor[0];
	EmitVertex();
	gl_Position = gl_in[1].gl_Position;
	fcfinal = fcolor[1];
	EmitVertex();
	gl_Position = gl_in[2].gl_Position;
	fcfinal = fcolor[2];
	EmitVertex();
	gl_Position = gl_in[0].gl_Position;
	fcfinal = fcolor[0];
	EmitVertex();
	EndPrimitive();
}