#version 310 es precision mediump float; layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in; void unused_entry_point() { return; } void main() { unused_entry_point(); } vec3 f(int x) { mat3 m = mat3(1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f, 7.0f, 8.0f, 9.0f); return m[x]; }