Week 5 - Unity XR Development

Characters (Hannah & Steve)

Hannah & Steve was created really quickly using Adobe Fuse the rigged automatically using mixamo. They turned out fantastic and can't wait to get them into VR.

Importing the .FBX of them both into unity was quick and easy. Had to create a material for them & set up the animation for there idle animation to loop.

Also I decided rather than do a VLOG every week I feel they will begin to get far to long as the is a lot of development happening very quickly, So instead I will do a VLOG as and when I feel its right.

Teleportation & Movement

This is the script I wrote in order to get continuous movement working using the joy con on the VR controller. Again help from many online documentations on Unity but the biggest help was of course YouTube primarily this video: https://youtu.be/5NRTT8Tbmoc

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.XR;

using UnityEngine.XR.Interaction.Toolkit;

public class ContinuousMovement : MonoBehaviour

{

    public float speed = 1;

    public XRNode inputSource;

    public float gravity = -9.81f;

    public LayerMask groundLayer;

    public float additionalHeight = 0.2f;

    private float fallingSpeed;

    private XRRig rig;

    private Vector2 inputAxis;

    private CharacterController character;

    // Start is called before the first frame update

    void Start()

    {

        character = GetComponent<CharacterController>();

        rig = GetComponent<XRRig>();

    }

    // Update is called once per frame

    void Update()

    {

        InputDevice device = InputDevices.GetDeviceAtXRNode(inputSource);

        device.TryGetFeatureValue(CommonUsages.primary2DAxis, out inputAxis);

    }

    private void FixedUpdate()

    {

        CapsuleFollowHeadset();

        Quaternion headYaw = Quaternion.Euler(0, rig.cameraGameObject.transform.eulerAngles.y, 0);

        Vector3 direction = headYaw * new Vector3(inputAxis.x, 0, inputAxis.y);

        character.Move(direction * Time.fixedDeltaTime * speed);

        //gravity

        bool isGrounded = CheckIfGrounded();

        if (isGrounded)

            fallingSpeed = 0;

        else

            fallingSpeed += gravity * Time.fixedDeltaTime;

        character.Move(Vector3.up * fallingSpeed * Time.fixedDeltaTime);

    }

    void CapsuleFollowHeadset()

    {

        character.height = rig.cameraInRigSpaceHeight + additionalHeight;

        Vector3 capsuleCenter = transform.InverseTransformPoint(rig.cameraGameObject.transform.position);

        character.center = new Vector3(capsuleCenter.x, character.height / 2 + character.skinWidth, capsuleCenter.z);

    }

    bool CheckIfGrounded()

    {

        //tells us if on ground

        Vector3 rayStart = transform.TransformPoint(character.center);

        float rayLength = character.center.y + 0.01f;

        bool hasHit = Physics.SphereCast(rayStart, character.radius, Vector3.down, out RaycastHit hitInfo, rayLength, groundLayer);

        return hasHit;

    }

}

Teleportation Reticule 

Using built in Unity Shader Graph & Particle system I created this interactor to where the player will teleport to.

Player Inventory using XR Socket Interactor

Custom made script for Inventory to follow player

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class FollowToTheSide : MonoBehaviour

{

    public Transform target;

    public Vector3 offset;

    void FixedUpdate()

    {

        transform.position = target.position + Vector3.up * offset.y

            + Vector3.ProjectOnPlane(target.right, Vector3.up).normalized * offset.x

             + Vector3.ProjectOnPlane(target.forward, Vector3.up).normalized * offset.z;

        transform.eulerAngles = new Vector3(0, target.eulerAngles.y, 0);

    }

}

UI on a Tablet in VR??

Created this basic Tablet in Blender added a UI canvas to it and it works for picking it up and interacting with UI elements & also holstering to your side with the crated inventory system. Maybe we can use this as the players main input device.