// A circular vignette, falling off as cosĀ² of the distance from the center
// (the classic formula for approximating a real lens).
// A circular vignette, falling off as cosĀ² of the distance from the center
// (the classic formula for approximating a real lens).
virtual bool needs_srgb_primaries() const { return false; }
virtual AlphaHandling alpha_handling() const { return DONT_CARE_ALPHA_TYPE; }
virtual bool needs_srgb_primaries() const { return false; }
virtual AlphaHandling alpha_handling() const { return DONT_CARE_ALPHA_TYPE; }