layout (blend_support_all_equations) out ;
layout (blend_support_all_equations) out ;
layout (blend_support_multiply) out ;
layout (blend_support_screen) out ;
layout (blend_support_overlay) out ;
layout (blend_support_darken) out ;
layout (blend_support_lighten) out ;
layout (blend_support_colordodge) out ;
layout (blend_support_colorburn) out ;
layout (blend_support_hardlight) out ;
layout (blend_support_softlight) out ;
layout (blend_support_difference) out ;
layout (blend_support_exclusion) out ;
layout (blend_support_hsl_hue) out ;
layout (blend_support_hsl_saturation) out ;
layout (blend_support_hsl_color) out ;
layout (blend_support_hsl_luminosity) out ;
void main() {
}