/usr/share/movit/white_balance_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 | // Implicit uniforms:
// uniform mat3 PREFIX(correction_matrix);
vec4 FUNCNAME(vec2 tc) {
vec4 ret = INPUT(tc);
ret.rgb = PREFIX(correction_matrix) * ret.rgb;
return ret;
}
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