imagination XD

realizing dream


[Unity UI 4.6] Parallax style menu

So yesterday I was trying to make parallax styled menu with Unity 4.6 UI, although it’s very simple to do.

  1. UnityUIPar (1)
  2. Check your canvas setting, the render mode should be Screen Space Camera.
  3.  UnityUIPar (3)
  4. After that, add empty game object like Content. Content is like a group of everything that will be moved by script
  5. UnityUIPar (2)
  6. Add this script on Canvas and set Canvas variable as your Content Rect transform.
  7. also you need to adjust minMaxAxis, it’s an array, 0 usually -15, and 1 usually 15

Here’s the script (C#)

using UnityEngine;
using UnityEngine.UI;
using System.Collections;

public class ParallaxMenu : MonoBehaviour {

 public RectTransform canvas;
 public float smoothTime = 0.3f;
 public float minMaxXAxis = new float[2]; //0 min, 1 max
 public float minMaxYAxis = new float[2]; //0 min, 1 max
 public float mouseSensitivity = 50.0f;
 private float xVelocity = 0.0f;
 private float yVelocity = 0.0f;
 private float x;
 private float y;
 private float xSmooth;
 private float ySmooth;

 void Awake(){
 Cursor.lockState = CursorLockMode.None;
 Cursor.visible = true;

 void Update(){
 x -= Input.GetAxis("Mouse X") * mouseSensitivity * 0.02f;
 y -= Input.GetAxis("Mouse Y") * mouseSensitivity * .02f;

 if(y > minMaxYAxis[1]) y = minMaxYAxis[1];
 if(y < minMaxYAxis[0]) y = minMaxYAxis[0];
 if(x > minMaxXAxis[1]) x = minMaxXAxis[1];
 if(x < minMaxXAxis[0]) x = minMaxXAxis[0];

 xSmooth = Mathf.SmoothDamp(xSmooth, x, ref xVelocity, smoothTime);
 ySmooth = Mathf.SmoothDamp(ySmooth,y, ref yVelocity, smoothTime);

 Quaternion parallax = new Quaternion();
 parallax = Quaternion.Euler(ySmooth / 7,xSmooth/7,0);

 canvas.transform.localPosition = new Vector3(xSmooth, ySmooth, 0f);
 canvas.transform.localRotation = parallax;


[Tutorial] HDRI as Unity Skybox

56I actually been used HDRI as skybox back then, but it wasn’t really good cause older Unity doesn’t has GI. Now Unity 5 has GI, so HDRI is good too for Unity.

You’ll need HDRI Image (JPG, if it’s hdr or exr, you have to convert it first), and Unity 5.

  1. 0First, if your HDRI is not JPG yet, then convert it to JPG by set the channel to 8bit.
  2. 1
  3. Import your JPG HDRI to Unity. Remember, 4000px is enough, cause you’ll get 2048px in Unity. Set your HDRI to Cubemap and Cubemap type to cylindrical or latitude bla bla bla…
  4. 2Now create a material. Click Assets > Create > Material
  5. 3 Set your material shader to Skybox > Cubemap
  6. 4Now drag your HDRI Cubemap to skybox cubemap.
  7. 5Now open Lighting tab, and drag your HDRI Material to skybox. Sometimes it might happens like this, but to fix it just change the cubemap type to Cylindrical (in this screenshot, I set it to Spherical).

Yep, it’s really simple. Simple as any other 3D programs.


Joint-based Hair / Cloth Physics for Unity

I was doing the MMD4Unity research. I do this because, on Google, if you want a Hair Physics, you have to wrote a script, or key frame it naturally in your model. Ain’t nobody got time for that keyframing! So, this might be very useful for easy Joint-based hair / cloth physics, even wrote a script was useful too.

Okay, so it’ll be like this. It could be very awesomely epic if you are not lazy to set the character joint setting.

“It’s long and complicated, i better use keyframe method.” Yeah true, but what to do when the hair colliding object because of your keyframing method ?

Let’s get Neru Akita as example (Model from MMD, some motion from Unity-chan).

Unity 2014-07-27 14-07-06-60_2

1. Now Select cloth / hair bones and then add Capsule Collider like the picture below.

2. After that, adjust the size of the colliders and then add Character Joint.

3. If your character has a Character Controller on it / Playable, Open Tags & Layer, add 2 layers. Set ‘Player’ layer to object that has Character Controller on it. Else, set the object that you want to have a hair / cloth physics like Hair Bones1, Hair Bones2, and so on, or Hair/Cloth physics collider like MidSpine (That has Collider, so hair / cloth wont clip like hell). Basically, Just set Cloth Layer to Skinned Mesh Renderer, and set it to all children.
3b (Bones)

4. Go to your character controller script. Whatever script is OK as long as its located on Object that has Character Controller on it. Don’t make a new script. Just add this line to function Start() or void Start(). Works on both C# and JS. 8 is Cloth layer, 9 is Player layer. it’s all up to you on what layer you set the Cloth or Player layer. If you set cloth layer to 10, then write 10.


3c (bones)
5. Alright now let’s add Rigidbody on cloth’s / hair’s root bone. For the root of the cloth (like this below), turn on isKinematic and turn off useGravity. Root doesn’t need a Character Joint, Collider is optional.

4 (bones)
6. Now set the Character Joint’s connected body. For instance, 1 (Cloth Root), 2 (1’s child), 3 (2’s child). 3’s connected body is 2, 2’s connected body is 1, and 1 doesn’t have a Character Joint. Like the picture below.
5 (bones)
7. Set bone’s swing limit, spring, high twist limit, low twist limit that suits to your model.
6 (bones)
8. Now add some collider to body that Hair or cloth will collide. Remember to set the body layer to CLOTH, so your character controller wont collide it. I add the colliders on Body, Hands, and Head.
7 (bones)

Because if you don’t add colliders, it’ll look like this:
Unity 2014-07-27 14-07-06-60

Now look! A cloths dynamic! It much better than the method I use on Wild West Showdown (Skinned Cloth). Look at her front hair and tie.
Unity 2014-07-27 14-07-06-60_1


As I said, I leave making games because I need to level up my CG level. I said I was give up right ? No, and never. I just need to learn to make a better CG Artwork. I’m currently making a mascot model for Imagination, named Imajine-chan. but, I don’t have an inspiration for her character design.

EDIT : “My Character raycast’s script is broken because of this.” Well, you could replace Cloth to IgnoreRaycast layer.