Text and TextMeshPro in Unity - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the main difference between Unity's Text component and TextMeshPro?

TextMeshPro provides better text rendering quality and more styling options compared to the basic Text component in Unity.

beginner

How do you add a TextMeshPro component to a GameObject in Unity?

Select the GameObject, then go to the menu: Component > UI > TextMeshPro - Text to add the TextMeshPro component.

intermediate

What is a key benefit of using TextMeshPro for UI text in Unity?

TextMeshPro supports advanced text styling like outlines, shadows, gradients, and rich text tags for better visual effects.

beginner

Which namespace must you include in your script to use TextMeshPro components?

You need to include the namespace using TMPro; to access TextMeshPro classes in your scripts.

beginner

How can you change the text of a TextMeshPro component via script?

Get a reference to the TextMeshProUGUI component and set its text property, for example: myTextMeshPro.text = "Hello!";

Which component provides higher quality text rendering in Unity?

A Canvas Renderer

B TextMeshPro

C Sprite Renderer

D Text

TextMeshPro offers better text rendering quality than the basic Text component.

What namespace do you need to use TextMeshPro in a script?

A using System.Text;

B using UnityEngine.UI;

C using TMPro;

D using UnityEngine.Text;

The TextMeshPro classes are in the TMPro namespace.

How do you change the displayed text of a TextMeshProUGUI component in code?

A Set the text property

B Call UpdateText() method

C Set the content property

D Modify the stringValue property

You change the text by setting the text property of the TextMeshProUGUI component.

Which of these is NOT a feature of TextMeshPro?

A Automatic sprite animation

B Rich text tags

C 3D mesh text rendering

D Text gradients

TextMeshPro does not provide automatic sprite animation; it focuses on text rendering and styling.

To add a TextMeshPro text element to your UI, you should:

A Add a Sprite Renderer component

B Add a Text component and change its font

C Add a Canvas Renderer component

D Add a TextMeshPro - Text component from the UI menu

You add TextMeshPro text by selecting Component > UI > TextMeshPro - Text.

Explain why you might choose TextMeshPro over the default Text component in Unity.

Think about how text looks and what effects you want.

Describe the steps to change the text of a TextMeshProUGUI element using a script.

Focus on the script parts needed.

Practice

1. Which component in Unity provides sharper and more customizable text rendering compared to the basic Text component?

easy

A. Sprite Renderer

B. Canvas Renderer

C. TextMeshPro

D. Audio Source

Solution

1. Step 1: Understand Unity text components

   Unity has a basic Text component and a more advanced TextMeshPro component for displaying text.

2. Step 2: Identify which is sharper and customizable

   TextMeshPro is designed to provide sharper, clearer text with more customization options than the basic Text component.

3. Final Answer:

   TextMeshPro -> Option C

4. Quick Check:

   Sharper text = TextMeshPro [OK]

Hint: TextMeshPro is the advanced text component in Unity [OK]

Common Mistakes:

• Confusing Canvas Renderer with text rendering
• Thinking Sprite Renderer handles text
• Choosing Audio Source which is unrelated

2. Which of the following is the correct way to change the displayed text of a TextMeshPro component in a Unity C# script?

easy

A. myText.display = "Hello World!";

B. myText.SetText = "Hello World!";

C. myText.content = "Hello World!";

D. myText.text = "Hello World!";

Solution

1. Step 1: Recall TextMeshPro text property usage

   TextMeshPro components have a public property called 'text' to set the displayed string.

2. Step 2: Identify correct syntax

   Assigning a string directly to 'text' like myText.text = "Hello World!"; is correct and common.

3. Final Answer:

   myText.text = "Hello World!"; -> Option D

4. Quick Check:

   Set text with .text property [OK]

Hint: Use .text property to set displayed text [OK]

Common Mistakes:

• Using SetText() which exists but is a method, not property assignment
• Using non-existent properties like content or display
• Missing quotes around string

3. What will be the output on screen after running this Unity C# code snippet if myText is a TextMeshProUGUI component?

myText.text = "Score: " + 10 + 5;

medium

A. Score: 15

B. Score: 105

C. Score: 10 5

D. Score: 10+5

Solution

1. Step 1: Understand string concatenation in C#

   When using + with a string and numbers, numbers are converted to strings and concatenated left to right.

2. Step 2: Evaluate expression "Score: " + 10 + 5

   "Score: " + 10 becomes "Score: 10", then + 5 becomes "Score: 105" as 5 is appended as string.

3. Final Answer:

   Score: 105 -> Option B

4. Quick Check:

   String + numbers concatenates left to right [OK]

Hint: String + numbers concatenate as strings left to right [OK]

Common Mistakes:

• Assuming 10 + 5 adds first before string concatenation
• Expecting spaces between numbers automatically
• Thinking + signs appear in output

4. You wrote this code to update a TextMeshProUGUI text but it doesn't change on screen:

public TextMeshProUGUI myText;

void Start() {
    myText.text = "Game Over";
}

What is the most likely reason?

medium

A. The myText variable is not assigned in the Inspector

B. TextMeshProUGUI does not have a text property

C. You must call Refresh() after setting text

D. The text must be set in Update(), not Start()

Solution

1. Step 1: Check common setup mistakes

   If myText is not assigned in the Inspector, the script has a null reference and text won't update.

2. Step 2: Verify other options

   TextMeshProUGUI has a text property; no Refresh() needed; setting text in Start() works fine.

3. Final Answer:

   The myText variable is not assigned in the Inspector -> Option A

4. Quick Check:

   Assign UI references in Inspector [OK]

Hint: Always assign UI variables in Inspector before running [OK]

Common Mistakes:

• Assuming text property doesn't exist
• Thinking Refresh() is required
• Believing Start() is too early to set text

5. You want to display a player's health as text using TextMeshProUGUI and update it every frame. Which code snippet correctly updates the text to show "Health: " followed by the current health integer stored in playerHealth?

hard

A. All of the above

B. void Update() { myText.text = "Health: " + playerHealth.ToString(); }

C. void Update() { myText.text = string.Format("Health: {0}", playerHealth); }

D. void Update() { myText.text = $"Health: {playerHealth}"; }

Solution

1. Step 1: Review ways to convert int to string in C#

   playerHealth is an int; to display it, convert to string or use string interpolation or formatting.

2. Step 2: Check each option

   B uses + and ToString(), C uses string.Format(), D uses string interpolation with $"..."; all work.

3. Step 3: Confirm all are correct

   All three methods correctly update the text with the health value.

4. Final Answer:

   All of the above -> Option A

5. Quick Check:

   Multiple string methods work for text update [OK]

Hint: Use any string conversion method to update text [OK]

Common Mistakes:

• Forgetting to convert int to string
• Using incorrect string syntax
• Updating text outside Update() when dynamic