gl-geometry-readback/geometry.geom

#version 320 es
precision mediump float;

layout (points) in;
layout (points, max_vertices=1) out;

void main() {
	gl_Position = gl_in[0].gl_Position + vec4(0.2, 0.0, 0.0, 0.0);
	gl_Layer = 8;
	EmitVertex();
	EndPrimitive();
}