Post-processing effects in Unity - Mini Project: Build & Apply

Post-processing effects

📖 Scenario: You are creating a simple Unity scene where you want to add visual effects to make the game look more interesting. Post-processing effects help improve the final image by adding things like color changes, blur, or bloom.

🎯 Goal: Build a Unity script that sets up a post-processing volume with a bloom effect. You will create the data, configure the bloom intensity, apply the effect, and then display the result in the game.

📋 What You'll Learn

Create a post-processing profile with bloom effect

Set bloom intensity using a variable

Apply the bloom effect to a post-processing volume

Print confirmation that the bloom effect is active

💡 Why This Matters

🌍 Real World

Post-processing effects are used in games and simulations to improve visual quality and create mood or atmosphere.

💼 Career

Understanding how to set up and configure post-processing effects is important for game developers and graphics programmers to enhance player experience.

1

Create a PostProcessProfile with Bloom effect

Create a PostProcessProfile variable called postProcessProfile and add a Bloom effect to it with default settings.

Unity

# Create a PostProcessProfile variable called postProcessProfile and add Bloom effect
// Your code here

Need a hint?

Use ScriptableObject.CreateInstance<PostProcessProfile>() to create the profile and AddSettings<Bloom>() to add bloom.

2

Set bloom intensity configuration

Create a float variable called bloomIntensity and set it to 5f. Then set the intensity.value of the Bloom effect in postProcessProfile to bloomIntensity.

Unity

using UnityEngine;
using UnityEngine.Rendering.PostProcessing;

public class PostProcessingSetup : MonoBehaviour
{
    public PostProcessProfile postProcessProfile;

    void Start()
    {
        postProcessProfile = ScriptableObject.CreateInstance();
        var bloom = postProcessProfile.AddSettings();
        // Set bloomIntensity to 5f and assign it to bloom.intensity.value
        // Your code here
    }
}

Need a hint?

Remember to declare bloomIntensity as a float and assign it to bloom.intensity.value.

3

Create and configure PostProcessVolume

Create a PostProcessVolume variable called postProcessVolume. Add a PostProcessVolume component to the current GameObject and assign postProcessProfile to its profile. Set isGlobal to true.

Unity

using UnityEngine;
using UnityEngine.Rendering.PostProcessing;

public class PostProcessingSetup : MonoBehaviour
{
    public PostProcessProfile postProcessProfile;

    void Start()
    {
        postProcessProfile = ScriptableObject.CreateInstance();
        var bloom = postProcessProfile.AddSettings();
        float bloomIntensity = 5f;
        bloom.intensity.value = bloomIntensity;

        // Create PostProcessVolume, add component, assign profile and set isGlobal
        // Your code here
    }
}

Need a hint?

Use gameObject.AddComponent<PostProcessVolume>() to add the volume and assign the profile and global flag.

4

Print confirmation of bloom effect activation

Write a Debug.Log statement that prints exactly "Bloom effect is active with intensity 5".

Unity

using UnityEngine;
using UnityEngine.Rendering.PostProcessing;

public class PostProcessingSetup : MonoBehaviour
{
    public PostProcessProfile postProcessProfile;

    void Start()
    {
        postProcessProfile = ScriptableObject.CreateInstance();
        var bloom = postProcessProfile.AddSettings();
        float bloomIntensity = 5f;
        bloom.intensity.value = bloomIntensity;

        PostProcessVolume postProcessVolume = gameObject.AddComponent();
        postProcessVolume.profile = postProcessProfile;
        postProcessVolume.isGlobal = true;

        // Print confirmation message
        // Your code here
    }
}

Need a hint?

Use Debug.Log to print the exact message.