void set_settings(const NodeChroma *node_chroma)
virtual float calculate_distance(const float key[4], const float image[4])
DistanceRGBMatteOperation()
void update_memory_buffer_partial(MemoryBuffer *output, const rcti &area, Span< MemoryBuffer * > inputs) override
const NodeChroma * settings_
a MemoryBuffer contains access to the data