Material properties in Unity - Interactive Code Practice

Practice - 5 Tasks

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easy

Complete the code to set the color of a material to red.

Unity

Material mat = GetComponent<Renderer>().material;
mat.color = [1];

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AColor.yellow

BColor.blue

CColor.green

DColor.red

Attempts:

3 left

💡 Hint

Common Mistakes

Using a color name that is not predefined like 'Red' instead of 'Color.red'.

Forgetting to access the material from the Renderer component.

To set a material's color to red, use Color.red.

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medium

Complete the code to change the metallic property of a material to 0.5.

Unity

Material mat = GetComponent<Renderer>().material;
mat.SetFloat("[1]", 0.5f);

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A"_BumpScale"

B"_Glossiness"

C"_Metallic"

D"_EmissionColor"

Attempts:

3 left

💡 Hint

Common Mistakes

Using "_Glossiness" which controls smoothness, not metallic.

Using property names that do not exist in the shader.

The metallic property is controlled by the shader property named "_Metallic".

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hard

Fix the error in the code to correctly set the emission color of a material.

Unity

Material mat = GetComponent<Renderer>().material;
mat.[1];

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ASetColor("_EmissionColor", Color.green)

Bcolor

CSetColor("_Emission", Color.green)

DemissionColor

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to set emissionColor property directly which does not exist.

Using wrong property name like "_Emission".

Emission color must be set using SetColor with the property name "_EmissionColor".

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hard

Fill both blanks to create a dictionary of material names and their smoothness values for materials with smoothness greater than 0.5.

Unity

var smoothMaterials = new Dictionary<string, float> {
    { [1], mat.GetFloat([2]) }
};

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Amat.name

B"_Smoothness"

C"_Glossiness"

D"mat.GetName()"

Attempts:

3 left

💡 Hint

Common Mistakes

Using "_Smoothness" which is not the correct property name.

Trying to call a non-existent method mat.GetName().

Use mat.name for the material's name and "_Glossiness" for smoothness property.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase material names to their emission colors if emission intensity is greater than 0.

Unity

var emissionDict = new Dictionary<string, Color> {
    { [1], mat.GetColor([2]) }
    where mat.GetFloat([3]) > 0
};

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Amat.name.ToUpper()

B"_EmissionColor"

C"_EmissionIntensity"

Dmat.color

Attempts:

3 left

💡 Hint

Common Mistakes

Using mat.color instead of mat.GetColor("_EmissionColor").

Checking emission with wrong property name.

Use mat.name.ToUpper() for uppercase names, "_EmissionColor" for emission color, and "_EmissionIntensity" for emission intensity check.