Pixel-Composer/scripts/node_3d_depth/node_3d_depth.gml

function Node_3D_Depth(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) constructor {
	name = "3D Depth";
	
	inputs[| 0] = nodeValue("Base Texture", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, noone );
	
	inputs[| 1] = nodeValue("Depth", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, noone );
	
	inputs[| 2] = nodeValue("Rotation", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [0, 0, 0] )
		.setDisplay(VALUE_DISPLAY.vector);
	
	outputs[| 0] = nodeValue("Surface out", self, JUNCTION_CONNECT.output, VALUE_TYPE.surface, noone);
	
	input_display_list = [
		["Texture",	false], 0, 1, 
		["Camera",	false], 2, 
	];
	
	attribute_surface_depth();
	attribute_interpolation();
		
	static processData = function(_outSurf, _data, _output_index, _array_index) {
		var _tex = _data[0];
		var _dep = _data[1];
		var _rot = _data[2];
		
		if(!is_surface(_tex)) return _outSurf;
		if(!is_surface(_dep)) return _outSurf;
		
		var x_rad = degtorad(_rot[0]);
		var y_rad = degtorad(_rot[1]);
		var z_rad = degtorad(_rot[2]);
		
		var _cx =  cos(y_rad) * cos(z_rad);
		var _cy = (sin(x_rad) * sin(y_rad) * cos(z_rad) - cos(x_rad) * sin(z_rad));
		var _cz = (cos(x_rad) * sin(y_rad) * cos(z_rad) + sin(x_rad) * sin(z_rad));
		
		var up_x = -sin(x_rad);
		var up_y = cos(x_rad);
		var up_z = 0;
		
		var right_x = cos(y_rad) * cos(z_rad);
		var right_y = sin(x_rad) * sin(y_rad) * cos(z_rad) - cos(x_rad) * sin(z_rad);
		var right_z = cos(x_rad) * sin(y_rad) * cos(z_rad) + sin(x_rad) * sin(z_rad);
		
		print($"POS:   {_cx}, {_cy}, {_cz}");
		print($"UP:    {up_x}, {up_y}, {up_z}");
		print($"RIGHT: {right_x}, {right_y}, {right_z}");
		print("");
		
		surface_set_shader(_outSurf, sh_3d_depth);
			DRAW_CLEAR
			
			shader_set_surface("texMap", _tex);
			shader_set_f("dimension", surface_get_width(_tex), surface_get_height(_tex));
			
			shader_set_surface("depthMap", _dep);
			shader_set_f("depthDimension", surface_get_width(_dep), surface_get_height(_dep));
			
			shader_set_f("cameraPos",   _cx,	 _cy,	  _cz);
			shader_set_f("cameraUp",    up_x,	 up_y,	  up_z);
			shader_set_f("cameraRight", right_x, right_y, right_z);
			
			draw_sprite_stretched(s_fx_pixel, 0, 0, 0, surface_get_width(_tex), surface_get_height(_tex));
		surface_reset_shader();
		
		return _outSurf;
	}
}