UnityExampleTask

These tasks are designed to test out necessary skills concerning scripting, ray casting, data structures, creation and deletion of objects, materials, and shaders in Unity.

Preparation

• Install Unity 2021.3.6f1 LTS
  • Install Unity Hub first
  • Open Unity Hub and install the desired Unity version
• Fork the GitHub repository
  • using the button on the website (upper right corner)
• then Clone the forked repository
  • Using a programm like GitHub Desktop is recommended

→ If you struggle too much with GitHub, just ask me for help before you spend multiple days on it. Although we need Git, it is way more important that you spend most of the time to get to know Unity.

Getting to know Scripting and UI Elements

• Create a 3D Cube
• Add a script to rotate the cube by dragging the mouse
• Create a UI Canvas
• Add a toggle button that locks the rotation in one direction
• Change the color of the cube (e.g. by creating new simple material or shader)

Getting to know Shaders

• Create a second cube
• Make it bigger and move the first cube inside
• Create a "Lit Shader Graph"
• In the shader graph: set another color & set the transparency (alpha value) below 1
• Create a material based on your shader graph
• Apply the material to the second cube
• Find a way to rotate both nested cubes simultaneously

→ this is what your scene might look like so far:

Working with the Shader Graph

• Create a Sphere
• Create a new shader graph
• In the shader graph include the node "Fresnel Effect" (see left image below)
• Use it to color the sphere (see example image on the right side)
  • There should be a color gradient between two colors
  • The “inner” area of the sphere should have another color than the outer areas
  • You might need the shader graph nodes called “color”, “multiply”, “subtract”, and “add” but you can also find another way to solve this.

Ray Casting and Data Structures

• Create a new scene and work in it to perform the following steps
• Write a script that spawns objects (e.g. cubes or spheres) in the scene when you click the left mouse button
• Write a script that recognizes when you click on one of the objects and saves selected objects in a list
• Include one button that gives all the selected objects a new color when pressed
• Include another button that deletes all selected objects when pressed
• Include another button to deselect all objects

Save your Work

• Commit your work to the repository
• Push your work