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VEX - General Concepts 3

Authored by Davide Bestetti

Information Technology (IT)

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VEX - General Concepts 3
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10 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the best way to search for a specific VEX function?

Browsing the function reference manually
Using the search bar in the documentation
Asking on Houdini forums
Looking in the SOPs documentation

Answer explanation

The search bar in the VEX documentation is the fastest way to locate a specific function.

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Why might common nodes be better than VEX for beginners?

Nodes require no coding
Nodes are faster
Nodes allow complex operations
Nodes handle large datasets better

Answer explanation

Common nodes are better for beginners because they require no coding knowledge.

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What does the 'set()' function return when used with integers?

An array of integers
A vector of integers
A float vector
An integer matrix

Answer explanation

The 'set()' function returns a vector of floats even if integers are passed as arguments.

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How do you assign a range of points to a group in VEX?

Using 'setgroup()' with a loop
Using 'groupaddrange()'
Using 'addrange()'
Using 'groupfromrange()'

Answer explanation

setgroup()' combined with a loop allows assignment of a range of points to a group.

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the size of a 'matrix3' data type in VEX?

3x3
4x4
3x4
2x2

Answer explanation

The 'matrix3' data type represents a 3x3 matrix in VEX.

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

When should you avoid using VOPs?

When dealing with heavy datasets
For debugging visually
For prototyping shaders
When you need fast execution

Answer explanation

VOPs can be slower and less efficient for handling heavy datasets compared to VEX.

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the primary purpose of spare parameters in Houdini?

To store additional attribute data
To create user-defined controls
To debug VEX code
To handle geometry transformations

Answer explanation

Spare parameters are used to create custom user-defined controls on nodes.

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