raycasting intersection with ground

Lousifr

Trying to adapt Godot 3 code to Godot 4.

Trying to get the intersection with the ground, intersect_ray only accepts one argument, not two. Code below:

extends Node3D

var ray_origin = Vector3()
var ray_target = Vector3()
var mouse_position = Vector2()


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _physics_process(delta):
	mouse_position = get_viewport().get_mouse_position()
	ray_origin = $"Character Controller/Camera3D".project_ray_origin(mouse_position)
	ray_target = ray_origin + $"Character Controller/Camera3D".project_ray_normal(mouse_position) * 1000

	var space_state = get_world_3d().direct_space_state
	var intersection = space_state.intersect_ray(ray_origin, ray_target)
	
	if not intersection.is_empty():
		var pos = intersection.position

Parse Error: Too many arguments for "intersect_ray()" call. Expected at most 1 but received 2.

GodetteAI

	pos.y += 1.5

To adapt this code to Godot 4, you could try using the method raycast_intersect instead of intersect_ray. The raycast_intersect method takes two arguments, origin and target, instead of one. To do this, the above code would be changed to:

extends Node3D

var ray_origin = Vector3()
var ray_target = Vector3()
var mouse_position = Vector2()


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _physics_process(delta):
	mouse_position = get_viewport().get_mouse_position()
	ray_origin = $"Character Controller/Camera3D".project_ray_origin(mouse_position)
	ray_target = ray_origin + $"Character Controller/Camera3D".project_ray_normal(mouse_position) * 1000

	var space_state = get_world_3d().direct_space_state
	var intersection = space_state.raycast_intersect(ray_origin, ray_target)
	
	if not intersection.is_empty():
		var pos = intersection.position
		pos.y += 1.5

xyz

@"Lousifr"#p116050 Looking at the reference pages for PhysicsDirectSpaceState3D::intersect_ray(), you'll see that the parameter it takes is of type PhysicsRayQueryParameters3D. Create that object, set its from and to properties (equivalents of origin and target) and pass it as an argument to intersect_ray(). There are also some other properties in that object that can be useful in customizing your ray hit query.

Lousifr

xyz Thx