1  #version 450 core
 2  
 3  #extension GL_ARB_shader_stencil_export : require
 4  
 5  layout (binding = 0, set = 2) uniform isampler2D texStencil;
 6  
 7  layout (location = 0) in vec2 tex_coord;
 8  
 9  void main()
10  {
11      gl_FragStencilRefARB = texture(texStencil, tex_coord).r;
12  }