#version 450 core
layout(points) in;
layout(triangle_strip, max_vertices = 4) out;
layout(std140, binding = 0) uniform TheMat { mat4 theMat; };
void main() {
  vec2 p1 = gl_in[0].gl_Position.xy;
  vec2 p2 = gl_in[0].gl_Position.zw;
  gl_Position = theMat * vec4(p1,100,1); EmitVertex();
  gl_Position = theMat * vec4(p1,5000,1); EmitVertex();
  gl_Position = theMat * vec4(p2,100,1); EmitVertex();
  gl_Position = theMat * vec4(p2,5000,1); EmitVertex();
  EndPrimitive();
}