Point shadows geometry shader using cubemap array texture

shadow_gs.glsl

void main() {

    light_t light = lights[light_index];

    vec4 translate = vec4(-light.model.xyz, 0.0);

    for (int i = 0; i < 6; i++) {
        gl_Layer = light_index * 6 + i;

        for (int j = 0; j < 3; j++) {

            position = light_view_cube[i] * (gl_in[j].gl_Position + translate);

            gl_Position = light_projection_cube * position;

            EmitVertex();
        }

        EndPrimitive();
    }
}