function Node_Threshold(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) constructor {
	name = "Threshold";
	
	newInput(0, nodeValue_Surface("Surface in", self));
	
	newInput(1, nodeValue_Bool("Brightness", self, false));
		
	newInput(2, nodeValue_Float("Brightness Threshold", self, 0.5))
		.setDisplay(VALUE_DISPLAY.slider)
		.setMappable(13);
		
	newInput(3, nodeValue_Float("Brightness Smoothness", self, 0))
		.setDisplay(VALUE_DISPLAY.slider);
	
	newInput(4, nodeValue_Surface("Mask", self));
	
	newInput(5, nodeValue_Float("Mix", self, 1))
		.setDisplay(VALUE_DISPLAY.slider);
	
	newInput(6, nodeValue_Bool("Active", self, true));
		active_index = 6;
	
	newInput(7, nodeValue_Bool("Alpha", self, false));
	
	newInput(8, nodeValue_Float("Alpha Threshold", self, 0.5))
		.setDisplay(VALUE_DISPLAY.slider)
		.setMappable(14);
		
	newInput(9, nodeValue_Float("Alpha Smoothness", self, 0))
		.setDisplay(VALUE_DISPLAY.slider);
	
	newInput(10, nodeValue_Toggle("Channel", self, 0b1111, { data: array_create(4, THEME.inspector_channel) }));
	
	__init_mask_modifier(4); // inputs 11, 12
	
	//////////////////////////////////////////////////////////////////////////////////////////////////
	
	newInput(13, nodeValueMap("Brightness map", self));
	
	newInput(14, nodeValueMap("Alpha map", self));
	
	//////////////////////////////////////////////////////////////////////////////////////////////////
	
	newInput(15, nodeValue_Enum_Scroll("Algorithm", self, 0, [ "Simple", "Adaptive mean" ]));
	
	newInput(16, nodeValue_Int("Adaptive Radius", self, 4))
	
	newOutput(0, nodeValue_Output("Surface out", self, VALUE_TYPE.surface, noone));
	
	input_display_list = [ 6, 10, 
		["Surfaces",	 true], 0, 4, 5, 11, 12, 
		["Brightness",	 true, 1], 15, 2, 13, 3,16, 
		["Alpha",	     true, 7], 8, 14, 9, 
	];
	
	attribute_surface_depth();
	
	static step = function() {
		__step_mask_modifier();
		
		inputs[2].mappableStep();
		inputs[8].mappableStep();
	}
	
	static processData = function(_outSurf, _data, _output_index, _array_index) {
		
		var _surf = _data[0];
		
		var _bright    = _data[1];
		var _brightThr = _data[2];
		var _brightSmt = _data[3];
		
		var _alph    = _data[7];
		var _alphThr = _data[8];
		var _alphSmt = _data[9];
		
		var _algo      = _data[15];
		var _adap_size = _data[16];
		
		inputs[16].setVisible(_algo == 1);
		
		var _shader = sh_threshold;
		if(_algo == 1) _shader = sh_threshold_adaptive;
		
		surface_set_shader(_outSurf, _shader);
			shader_set_dim(, _surf);
			
			shader_set_i("bright",			    _bright);
			shader_set_f_map("brightThreshold", _brightThr, _data[13], inputs[2]);
			shader_set_f("brightSmooth",	    _brightSmt);
			shader_set_f("adaptiveRadius",	    _adap_size);
			shader_set_f("gaussianCoeff",	    __gaussian_get_kernel(_adap_size));
			
			shader_set_i("alpha",			    _alph);
			shader_set_f_map("alphaThreshold",  _alphThr, _data[14], inputs[8]);
			shader_set_f("alphaSmooth",		    _alphSmt);
			
			draw_surface_safe(_surf);
		surface_reset_shader();
		
		__process_mask_modifier(_data);
		_outSurf = mask_apply(_data[0], _outSurf, _data[4], _data[5]);
		_outSurf = channel_apply(_data[0], _outSurf, _data[10]);
		
		return _outSurf;
	}
}