-static const char *blend_NORMAL_frag =
- " vec4 result = mix(src_color, src_color, src_color.a);\n";
-
-static const char *blend_ADDITION_frag =
- " vec4 result = dst_color + src_color;\n"
- " result = clamp(result, 0.0, 1.0);\n";
-
-static const char *blend_SUBTRACT_frag =
- " vec4 result = dst_color - src_color;\n"
- " result = clamp(result, 0.0, 1.0);\n";
-