Is anyone doing a VR course in Godot?

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Nerdzmasterz

I'll admit I'm a bit of a slow learner, it's easier for me to watch and do. Is anyone aware of/planning on making a course for Godot in VR? I could keep looking at tutorials on YouTube, but I can't even get the tutorial project by @TwistedTwigleg and others to work. I have an Oculus Quest 2, and know how to use Link/AirLink. I made a basic project with an empty world and boxes for hands, and that is really all I can do. I still struggle to even export a second project. All the course I find for VR are for Unity or Unreal, and some YouTube videos are already outdated.

TwistedTwigleg

I haven’t looked at VR in a long time… don’t even have the headset anymore 😅

VR in Godot is cool, but yeah, unfortunately there is not very much material on it. I used basic Unity tutorials when I wrote the tutorial as a base and to get an idea on how to make VR projects and code, so that might be a helpful reference.

Nerdzmasterz

Huh. I left Unity shortly after things started to go sideways for them, but I had little to no experience in VR with it. The only saving grace I had there was Auto Hands, which I will leave the asset link here. Plus, I switched to GDScript, so I never did C# with Godot- save maybe a few tries.

https://assetstore.unity.com/packages/tools/game-toolkits/auto-hand-vr-physics-interaction-165323

The downside to Auto Hands, obviously, was that I didn't ever learn the basic grab/distance grab code, player movement- either by teleporting or smooth movement, rotation, nothing. It was a lazy way out, if not the only way I knew that worked.

I guess I'm just looking for anyone wiling to cover the basics, and if I have to pay a bit to learn them, I will do so. VR is my all-time favorite platform ATM, and I want to eventually build solid, bug-free games. But first, I have to take the baby steps.

I managed to build a VR project and look around in it. I have an updated version that has hands as well. And that's all I can do ATM. Not sure if it helps anyone.

https://1drv.ms/u/s!AgQKenLrWBXeje4Oa1eWieTMR18rrg?e=GCA2aB

A few pluses would be learning to craft and make an inventory system- I never figured out inventory, even in Unity, but even basics would give me enough to build a puzzle game.

Nerdzmasterz

Okay, I found this video, but things aren't set up exactly as shown on mine. I currently only can move forwards and backwards, turn by physically turning, and fall off the edge. I still don't understand smooth rotation, grabbing/dropping, or interacting in general.

I guess I'll have to keep digging.

Nerdzmasterz

Some progress! So, in order to get the character to rotate, I had to convert the strafe ability in the direct_movement script to rotate the player. I'll add the code here. I am honestly not sure why it added all this extra stuff, but, hey. The code works when Strafe- now player rotation- is on.

tool
class_name Function_DirectMovement
extends MovementProvider

##
## Movement Provider for Direct Movement
##
## @desc:
##     This script works with the Function_Direct_movement asset to provide
##     direct movement for the player. This script works with the PlayerBody
##     attached to the players ARVROrigin.
##
##     The following types of direct movement are supported:
##      - Slewing
##      - Forwards and backwards motion
##
##     The player may have multiple direct movement nodes attached to different
##     controllers to provide different types of direct movement.
##

#Extra Feature for rotation, this swaps strafing ability with rotation ability
onready var FPController = get_node("../..")

## Movement provider order
export var order := 10

## Movement speed
export var max_speed := 10.0

## Enable player strafing
export var strafe := false


# Controller node
onready var _controller : ARVRController = get_parent()


# Perform jump movement
func physics_movement(delta: float, player_body: PlayerBody, _disabled: bool):
	# Skip if the controller isn't active
	if !_controller.get_is_active():
		return

	# Apply forwards/backwards ground control
	player_body.ground_control_velocity.y += _controller.get_joystick_axis(1) * max_speed

	# Apply left/right ground control
	if strafe:
		#player_body.ground_control_velocity.x += _controller.get_joystick_axis(0) * max_speed
		FPController.rotation_degrees.y += _controller.get_joystick_axis(0) * max_speed * -0.05 
	# Clamp ground control
	player_body.ground_control_velocity.x = clamp(player_body.ground_control_velocity.x, -max_speed, max_speed)
	player_body.ground_control_velocity.y = clamp(player_body.ground_control_velocity.y, -max_speed, max_speed)


# This method verifies the MovementProvider has a valid configuration.
func _get_configuration_warning():
	# Check the controller node
	var test_controller = get_parent()
	if !test_controller or !test_controller is ARVRController:
		return "Unable to find ARVR Controller node"

	# Call base class
	return ._get_configuration_warning()

Nerdzmasterz

I just got the movement down. Here, feel free to use. This allows you to switch which hand does what. From what I've seen, one hand does rotation, and the other does the movement and strafing. I will also note, as one game has given me heck for this, note that jumping is not easily done with the same controller as what does the main movement- it is best done in the hand with the rotation. Also, a side note, the rotation hand will most likely also be the one to hold gadgets like a flashlight. I've seen a game that didn't do that, and I had to try to use the main hand to shine a light and do everything else. Not cool.

tool
class_name Function_DirectMovement
extends MovementProvider

##
## Movement Provider for Direct Movement
##
## @desc:
##     This script works with the Function_Direct_movement asset to provide
##     direct movement for the player. This script works with the PlayerBody
##     attached to the players ARVROrigin.
##
##     The following types of direct movement are supported:
##      - Slewing
##      - Forwards and backwards motion
##
##     The player may have multiple direct movement nodes attached to different
##     controllers to provide different types of direct movement.
##

#Extra Feature for rotation, this swaps strafing ability with rotation ability
onready var FPController = get_node("../..")

## Movement provider order
export var order := 10

## Movement speed
export var max_speed := 10.0

## Enable player strafing
export var strafe := false

# Enable player rotation
export var rotate = true

#Enable player basic movement
export var movement = true

# Controller node
onready var _controller : ARVRController = get_parent()


# Perform jump movement
func physics_movement(delta: float, player_body: PlayerBody, _disabled: bool):
	# Skip if the controller isn't active
	if !_controller.get_is_active():
		return

	# Apply forwards/backwards ground control
	if movement == true:
		player_body.ground_control_velocity.y += _controller.get_joystick_axis(1) * max_speed

	# Apply left/right ground control
	if strafe:
		player_body.ground_control_velocity.x += _controller.get_joystick_axis(0) * max_speed
	else:
		FPController.rotation_degrees.y += _controller.get_joystick_axis(0) * max_speed * -0.05 
	# Clamp ground control
	player_body.ground_control_velocity.x = clamp(player_body.ground_control_velocity.x, -max_speed, max_speed)
	player_body.ground_control_velocity.y = clamp(player_body.ground_control_velocity.y, -max_speed, max_speed)


# This method verifies the MovementProvider has a valid configuration.
func _get_configuration_warning():
	# Check the controller node
	var test_controller = get_parent()
	if !test_controller or !test_controller is ARVRController:
		return "Unable to find ARVR Controller node"

	# Call base class
	return ._get_configuration_warning()

Nerdzmasterz

Learning quite a bit. I'm using OpenXR and so far can still follow along as he uses XR tools.

Nerdzmasterz

Wow. Does anyone understand this list? IDK, but it loos very confusing. I'm assuming they're the buttons on the Quest?
I guess AX is the A or X button? IDK.

I believe the jump is usually X or A, depending on which one is the off-hand- although those could also be grab in other games- in which case Y and B is jump IIRC.

enum Buttons {
	VR_BUTTON_BY = 1,
	VR_GRIP = 2,
	VR_BUTTON_3 = 3,
	VR_BUTTON_4 = 4,
	VR_BUTTON_5 = 5,
	VR_BUTTON_6 = 6,
	VR_BUTTON_AX = 7,
	VR_BUTTON_8 = 8,
	VR_BUTTON_9 = 9,
	VR_BUTTON_10 = 10,
	VR_BUTTON_11 = 11,
	VR_BUTTON_12 = 12,
	VR_BUTTON_13 = 13,
	VR_PAD = 14,
	VR_TRIGGER = 15
}

Megalomaniak

Nerdzmasterz I guess AX is the A or X button? IDK.

I would think it's the button under the analog stick, so when you press down on the analog stick it also acts as a button, but that's just a guess on my part.

Nerdzmasterz

I wonder... I don't know how to add UI to a VR game yet. If I could add a label, I could make the buttons I press pop up on screen. That would show me what's what.

Kojack

I don't know how Godot is doing it, but generally AX and BY are going to be referring to either the upper or lower button on a controller.
On Oculus and HP Reverb G2 controllers, the left hand has X and Y buttons and the right hand has A and B. So VR_BUTTON_AX would be the X button if you are checking the left controller or A if checking the right controller.

Nerdzmasterz

Checkmate! I switched up the pickup code like so:

func _on_button_pressed(p_button) -> void:
	print(p_button)
	if p_button == pickup_button_id:
		if is_instance_valid(picked_up_object) and !picked_up_object.press_to_hold:
			drop_object()
		elif is_instance_valid(closest_object):
			_pick_up_object(closest_object)
	elif p_button == action_button_id:
		if is_instance_valid(picked_up_object) and picked_up_object.has_method("action"):
			picked_up_object.action()

And, actually, the buttons on the joystick are 14.
y and b are 1.
The grips are 2.
a and x- 7
the triggers are 15.

IDK why they're labeled like that... but now, how do I only tell x to do something and not a, or vise versa...? Hm.

Nerdzmasterz

I think I know enough to build games in VR now. I'll see what sort of trouble I can cause... 🦹‍♀️

Nerdzmasterz

So I'm trying to go for a spooky, see nothing darkness in the game, sort of like this?

It works wonders in the editor, but it's two or three times as light in the oculus. Is there a way to not entirely make it pitch black in the VR? One of my tests made it completely pitch black- that wasn't good.

I've been working on setting up the environment for this level, as it's supposed to be a bunker which ran out of power. All you have left is enough battery for a flashlight- so you gather your necessities in the light of the flashlight and leave- it's sort of a tutorial. I understand post processing is a lot for the oculus as it isn't a PC, but I still need the lights to pretty much go out, save a rare few.

Nerdzmasterz

NVM. I got a nice view now. Sorry if I ask a dozen questions, I'm a bit rusty as I haven't done this in a good while.

Oh well. At least enjoy the little victories in life.

Next up is trying to figure out how to prevent a 3D light from shining through walls. It's dark, as intended, but you can still see light shining through the wall and onto the ceiling. It seems as though I'm going to have to re-create the mesh libs so they recognize where to cast shadows. Back to the old drawing board...

It's still a step up from not even being able to move, or having no control over the environment, although I still can't grab my flashlight- which is the light source here.

On the subject of VR, how does one add points that let you store objects until you have to grab them again? Take Walking Dead: Saints and Sinners, for instance. There's a special place one keeps the flashlight, another for the backpack, and there are two empty ones that you can place weapons in, one on each hand. I'm guessing it has to do with static bodies and triggers, but the holsters have to also follow the player so they are always in the same place as the player's headset rotates. As stated, just a guess. I don't exactly know.

Nerdzmasterz

So, in Godot, the pockets you can place around the character to have an inventory are called snap zones. I still don't know how to use them, so I will keep digging.

Nerdzmasterz

Just discovered the physics left and right hand in xr tools. I don't know how to swap them for another set of hands yet, but they do bend their four long fingers based on player controls and look better than basic cubes. As simple as they are, they're probably enough for this minimalist game I'm working on right now.

Nerdzmasterz

Does anyone else have at least a suggestion on how to use the snap zones, plz?

Nerdzmasterz

I can't believe I'm the only one doing VR... It's insanity, I tell ya! 😄

All kidding aside, though, I can't figure everything out on my own. Anyone have at least a course or a video series I should look for? I mean, seriously, I can't be the only VR dev, here.