#include "effect_chain.h"
class ColorspaceConversionEffect : public Effect {
-public:
+private:
+ // Should not be instantiated by end users.
ColorspaceConversionEffect();
+ friend class EffectChain;
+
+public:
virtual std::string effect_type_id() const { return "ColorspaceConversionEffect"; }
std::string output_fragment_shader();