- virtual std::string effect_type_id() const { return "OverlayMatteEffect"; }
- std::string output_fragment_shader();
- virtual AlphaHandling alpha_handling() const { return INPUT_PREMULTIPLIED_ALPHA_KEEP_BLANK; }
+ std::string effect_type_id() const override { return "OverlayMatteEffect"; }
+ std::string output_fragment_shader() override;
+ AlphaHandling alpha_handling() const override { return INPUT_PREMULTIPLIED_ALPHA_KEEP_BLANK; }