tool
extends "base_modifier.gd"
export var override_global_seed := false
export var custom_seed := 0
export var local_space := false
export var position := Vector3.ONE
export var rotation := Vector3(360.0, 360.0, 360.0)
export var scale := Vector3.ONE
var _rng: RandomNumberGenerator
func _init() -> void:
display_name = "Randomize Transforms"
category = "Edit"
func _process_transforms(transforms, global_seed) -> void:
_rng = RandomNumberGenerator.new()
if override_global_seed:
_rng.set_seed(custom_seed)
else:
_rng.set_seed(global_seed)
var t: Transform
var s: Vector3
var origin: Vector3
var gt: Transform = transforms.path.get_global_transform()
origin = gt.origin
gt.origin = Vector3.ZERO
var global_x: Vector3 = gt.xform_inv(Vector3.RIGHT).normalized()
var global_y: Vector3 = gt.xform_inv(Vector3.UP).normalized()
var global_z: Vector3 = gt.xform_inv(Vector3.DOWN).normalized()
gt.origin = origin
for i in transforms.list.size():
t = transforms.list[i]
origin = t.origin
t.origin = Vector3.ZERO
s = Vector3.ONE + (_rng.randf() * scale)
t = t.scaled(s)
if local_space:
t = t.rotated(t.basis.x.normalized(), deg2rad(_random_float() * rotation.x))
t = t.rotated(t.basis.y.normalized(), deg2rad(_random_float() * rotation.y))
t = t.rotated(t.basis.z.normalized(), deg2rad(_random_float() * rotation.z))
t.origin = origin + t.xform(_random_vec3() * position)
else:
t = t.rotated(global_x, deg2rad(_random_float() * rotation.x))
t = t.rotated(global_y, deg2rad(_random_float() * rotation.y))
t = t.rotated(global_z, deg2rad(_random_float() * rotation.z))
t.origin = origin + _random_vec3() * position
transforms.list[i] = t
func _random_vec3() -> Vector3:
var vec3 = Vector3.ZERO
vec3.x = _rng.randf_range(-1.0, 1.0)
vec3.y = _rng.randf_range(-1.0, 1.0)
vec3.z = _rng.randf_range(-1.0, 1.0)
return vec3
func _random_float() -> float:
return _rng.randf_range(-1.0, 1.0)
func _clamp_vector(vec3, vmin, vmax) -> Vector3:
vec3.x = clamp(vec3.x, vmin.x, vmax.x)
vec3.y = clamp(vec3.y, vmin.y, vmax.y)
vec3.z = clamp(vec3.z, vmin.z, vmax.z)
return vec3