armorpaint/paint/sources/material_nodes/brick_texture_node.ts

function brick_texture_node_init() {
	array_push(nodes_material_texture, brick_texture_node_def);
	map_set(parser_material_node_vectors, "TEX_BRICK", brick_texture_node_vector);
	map_set(parser_material_node_values, "TEX_BRICK", brick_texture_node_value);
}

let str_tex_brick: string = "\
fun tex_brick_noise(n: int): float { \
	var nn: int; \
	n = (n >> 13) ^ n; \
	/*nn = (n * (n * n * 60493 + 19990303) + 1376312589) & 0x7fffffff;*/ \
	nn = (n * (n * n * 60493 + 19990303) + 1376312589) & 2147483647; \
	return 0.5 * float(nn) / 1073741824.0; \
} \
fun tex_brick(p: float3, c1: float3, c2: float3, c3: float3): float3 { \
	var brick_size: float3 = float3(0.9, 0.49, 0.49); \
	var mortar_size: float3 = float3(0.05, 0.1, 0.1); \
	p /= brick_size / 2.0; \
	if (frac(p.y * 0.5) > 0.5) { p.x += 0.5; } \
	var col: float = floor(p.x / (brick_size.x + (mortar_size.x * 2.0))); \
	var row: float = p.y; \
	p = frac3(p); \
	var b: float3 = step3(p, 1.0 - mortar_size); \
	/*var tint: float = min(max(tex_brick_noise((int(col) << 16) + (int(row) & 0xffff)), 0.0), 1.0);*/ \
	var tint: float = min(max(tex_brick_noise((int(col) << 16) + (int(row) & 65535)), 0.0), 1.0); \
	return lerp3(c3, lerp3(c1, c2, tint), b.x * b.y * b.z); \
} \
fun tex_brick_f(p: float3): float { \
	p /= float3(0.9, 0.49, 0.49) / 2.0; \
	if (frac(p.y * 0.5) > 0.5) { p.x += 0.5; } \
	p = frac3(p); \
	var b: float3 = step3(p, float3(0.95, 0.9, 0.9)); \
	return lerp(1.0, 0.0, b.x * b.y * b.z); \
} \
";

function brick_texture_node_vector(node: ui_node_t, socket: ui_node_socket_t): string {
	node_shader_add_function(parser_material_kong, str_tex_brick);
	let co: string    = parser_material_get_coord(node);
	let col1: string  = parser_material_parse_vector_input(node.inputs[1]);
	let col2: string  = parser_material_parse_vector_input(node.inputs[2]);
	let col3: string  = parser_material_parse_vector_input(node.inputs[3]);
	let scale: string = parser_material_parse_value_input(node.inputs[4]);
	let res: string   = "tex_brick(" + co + " * " + scale + ", " + col1 + ", " + col2 + ", " + col3 + ")";
	return res;
}

function brick_texture_node_value(node: ui_node_t, socket: ui_node_socket_t): string {
	node_shader_add_function(parser_material_kong, str_tex_brick);
	let co: string    = parser_material_get_coord(node);
	let scale: string = parser_material_parse_value_input(node.inputs[4]);
	let res: string   = "tex_brick_f(" + co + " * " + scale + ")";
	return res;
}

let brick_texture_node_def: ui_node_t = {
	id : 0,
	name : _tr("Brick Texture"),
	type : "TEX_BRICK",
	x : 0,
	y : 0,
	color : 0xff4982a0,
	inputs : [
		{
			id : 0,
			node_id : 0,
			name : _tr("Vector"),
			type : "VECTOR",
			color : 0xff6363c7,
			default_value : f32_array_create_xyz(0.0, 0.0, 0.0),
			min : 0.0,
			max : 1.0,
			precision : 100,
			display : 0
		},
		{
			id : 0,
			node_id : 0,
			name : _tr("Color 1"),
			type : "RGBA",
			color : 0xffc7c729,
			default_value : f32_array_create_xyz(0.8, 0.8, 0.8),
			min : 0.0,
			max : 1.0,
			precision : 100,
			display : 0
		},
		{
			id : 0,
			node_id : 0,
			name : _tr("Color 2"),
			type : "RGBA",
			color : 0xffc7c729,
			default_value : f32_array_create_xyz(0.2, 0.2, 0.2),
			min : 0.0,
			max : 1.0,
			precision : 100,
			display : 0
		},
		{
			id : 0,
			node_id : 0,
			name : _tr("Mortar"),
			type : "RGBA",
			color : 0xffc7c729,
			default_value : f32_array_create_xyz(0.0, 0.0, 0.0),
			min : 0.0,
			max : 1.0,
			precision : 100,
			display : 0
		},
		{
			id : 0,
			node_id : 0,
			name : _tr("Scale"),
			type : "VALUE",
			color : 0xffa1a1a1,
			default_value : f32_array_create_x(5.0),
			min : 0.0,
			max : 10.0,
			precision : 100,
			display : 0
		}
	],
	outputs : [
		{
			id : 0,
			node_id : 0,
			name : _tr("Color"),
			type : "RGBA",
			color : 0xffc7c729,
			default_value : f32_array_create_xyzw(0.8, 0.8, 0.8, 1.0),
			min : 0.0,
			max : 1.0,
			precision : 100,
			display : 0
		},
		{
			id : 0,
			node_id : 0,
			name : _tr("Fac"),
			type : "VALUE",
			color : 0xffa1a1a1,
			default_value : f32_array_create_x(1.0),
			min : 0.0,
			max : 1.0,
			precision : 100,
			display : 0
		}
	],
	buttons : [],
	width : 0,
	flags : 0
};