function upscale_image_node_init() {
	array_push(nodes_material_neural, upscale_image_node_def);
	map_set(parser_material_node_vectors, "NEURAL_UPSCALE_IMAGE", neural_node_vector);
	map_set(ui_nodes_custom_buttons, "upscale_image_node_button", upscale_image_node_button);
}

function upscale_image_node_button(node_id: i32) {
	let canvas: ui_node_canvas_t = ui_nodes_get_canvas(true);
	let node: ui_node_t          = ui_get_node(canvas.nodes, node_id);
	let node_name: string = parser_material_node_name(node);
	let h: ui_handle_t = ui_handle(node_name);

	let models: string[] = [ "Real-ESRGAN" ];
	let model: i32       = ui_combo(ui_nest(h, 0), models, tr("Model"));

	if (neural_node_button(node, models[model])) {
		let from_node: ui_node_t = neural_from_node(node.inputs[0], 0);
		let input: gpu_texture_t = ui_nodes_get_node_preview_image(from_node);
		if (input != null) {
			/// if IRON_BGRA
			let input_buf: buffer_t = export_arm_bgra_swap(gpu_get_texture_pixels(input)); // Vulkan non-rt textures need a flip
			/// else
			let input_buf: buffer_t = gpu_get_texture_pixels(input);
			/// end

			let dir: string = neural_node_dir();
			iron_write_png(dir + path_sep + "input.png", input_buf, input.width, input.height, 0);

			let argv: string[] =
			    [ dir + "/sd_vulkan", "-M", "upscale", "--upscale-model", dir + "/RealESRGAN_x4plus.pth", "-i", dir + "/input.png", "-o", dir + "/output.png", null ];
			iron_exec_async(argv[0], argv.buffer);
			sys_notify_on_update(neural_node_check_result, node);
		}
	}
}

let upscale_image_node_def: ui_node_t = {
	id : 0,
	name : _tr("Upscale Image"),
	type : "NEURAL_UPSCALE_IMAGE",
	x : 0,
	y : 0,
	color : 0xff4982a0,
	inputs : [ {
		id : 0,
		node_id : 0,
		name : _tr("Color"),
		type : "RGBA",
		color : 0xffc7c729,
		default_value : f32_array_create_xyzw(0.0, 0.0, 0.0, 1.0),
		min : 0.0,
		max : 1.0,
		precision : 100,
		display : 0
	} ],
	outputs : [ {
		id : 0,
		node_id : 0,
		name : _tr("Color"),
		type : "RGBA",
		color : 0xffc7c729,
		default_value : f32_array_create_xyzw(0.0, 0.0, 0.0, 1.0),
		min : 0.0,
		max : 1.0,
		precision : 100,
		display : 0
	} ],
	buttons : [ {
		name : "upscale_image_node_button",
		type : "CUSTOM",
		output : -1,
		default_value : f32_array_create_x(0),
		data : null,
		min : 0.0,
		max : 1.0,
		precision : 100,
		height : 2
	} ],
	width : 0,
	flags : 0
};