Tag Archives: layers

Using Sorting Layers to arrange assets in Unity 2D game design

This tutorial explains how to arrange assets in a 2D scene in Unity using Sorting Layers. If you have assets that you want in the background and assets that you want in the midground and foreground of a scene, then you can use Sorting Layers to arrange these assets. You can also use Sorting Layers to fix the problem of disappearing assets in your scene.

Next tutorial: Organising and grouping assets in the hierarchy

Parallax scrolling effect with HTML5, CSS and JavaScript

This tutorial explains how to add a parallax scrolling effect using some simple HTML5, CSS and JavaScript code. If you want to know more about the origins of the parallax effect, click here to see how Disney used the parallax effect in their early cartoon animation.

Click on the image below to see a working demo of the parallax effect created in this tutorial.

Parallax scrolling effect demo.
Parallax scrolling effect demo.

Watch the video below and then scroll down to see the sample code and sample image files you can use.

Sample code and images

Click on the image thumbnails below to download the sample background image and two parallax layer div background images.

background
background.png
parallax
parallax.png
parallax2
parallax2.png

All of the HTML, CSS and JavaScript code for this demo is included in one HTML file. You can copy the code from below – please note that I have included several of the same paragraphs in the code so that there is plenty of text content on the page to allow the user to scroll in order for the parallax effect to be visible.

<html>
<head>
  <title>Parallax effect</title>

  <style type="text/css">
    body{
      margin:0px;
      background:url(background.png) fixed;
    }
    #parallax_layer1{
      position:fixed;
      background:url(parallax.png) no-repeat 0px 300px;
      width:100%;
      height:800px;
    }
    #parallax_layer2{
      position:fixed;
      background:url(parallax2.png) no-repeat 0px 500px;
      width:100%;
      height:1000px;
    }
    #content_layer{
      color:#F9A7B0;
      background-color:black;
      opacity:0.5;
      font-family:Arial;
      position:absolute;
      padding:10px 10px 10px 30px;
      width:40%;
      right:0px;
    }
  </style>

  <script>
  // Create the parallax function.
  function parallax(){
    var parallax_layer1 = document.getElementById('parallax_layer1');
    var parallax_layer2 = document.getElementById('parallax_layer2');
    // Dividing the pageYOffset by a positive number will slow down the parallax effect.
    // Adding a '-' before (window.pageYOffset) makes the parallax
    // layer move up instead of down when scrolling.
    parallax_layer1.style.top = -(window.pageYOffset/2)+'px';
    parallax_layer2.style.top = -(window.pageYOffset/6)+'px';
  }
  // Add an event listener which will detect scrolling and run
  // the parallax function.
  window.addEventListener("scroll",parallax);

  </script>

</head>
<body>
  <div id="parallax_layer1"></div>
  <div id="parallax_layer2"></div>
  <div id="content_layer">
    <h1>Parallax effect</h1>
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  </div>	
</body>
</html>

Layers in Unity

In this tutorial we will look at how to use layers in Unity. Layers are quite useful if you want to make some objects invisible to different cameras or players or if you want to ignore light or cameras on some layers. Watch the video to see how you can work with layers in Unity.

Please note that this tutorial continues on from the previous tutorial: Adding a PIP Map Effect in Unity.

How To Make Animated GIFs in Adobe Photoshop CC 2014

This video tutorial explains how to make animated GIFs by making multiple layers and converting them to frames on an animation timeline. This tutorial shows how to do this in Adobe Photoshop CC 2014. Click here to view the video on YouTube or view it below.