/usr/share/movit/alpha_division_effect.frag is in libmovit4 1.3.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | // Note: Division by zero will give inf or nan, whose conversion to
// integer types is implementation-defined. However, anything is fine for
// alpha=0, since that's undefined anyway.
vec4 FUNCNAME(vec2 tc) {
vec4 x = INPUT(tc);
x.rgb /= x.aaa;
return x;
}
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