void set_uniform_vec4_array(GLuint glsl_program_num, const std::string &prefix, const std::string &key, const float *values, size_t num_values);
class Effect {
-public:
+public:
+ // An identifier for this type of effect, mostly used for debug output
+ // (but some special names, like "ColorSpaceConversionEffect", holds special
+ // meaning). Same as the class name is fine.
+ virtual std::string effect_type_id() const = 0;
+
// Whether this effects expects its input (and output) to be in
// linear gamma, ie. without an applied gamma curve. Most effects
// will want this, although the ones that never actually look at