VEX Data Types 2

VEX Data Types 2

Professional Development

10 Qs

quiz-placeholder

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VEX Data Types 2

VEX Data Types 2

Assessment

Quiz

Information Technology (IT)

Professional Development

Practice Problem

Hard

Created by

Davide Bestetti

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How do you declare a global attribute in VEX?

Using the @ symbol
Using the #define directive
By prefixing with $
By declaring it outside a function

Answer explanation

Global attributes are accessed and declared in VEX using the @ symbol.

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is a valid VEX variable name?

1var
_variable
float
@attr

Answer explanation

Valid VEX variable names can start with an underscore and cannot be keywords like 'float'.

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the primary difference between attributes and variables in VEX?

Attributes are local, variables are global
Attributes are stored with geometry, variables are temporary
Attributes are faster to access
Variables can only hold integers

Answer explanation

Attributes are stored with geometry and persist across nodes, while variables are temporary.

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How do you declare an integer variable in VEX?

int myVar;
integer myVar;
int32 myVar;
number myVar;

Answer explanation

An integer variable in VEX is declared using 'int' followed by the variable name.

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which data type would you use to store RGB color values in VEX?

Matrix
Vector
Array
Float

Answer explanation

RGB color values are typically stored as a vector in VEX.

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How can you modify an existing attribute in VEX?

By assigning a value directly
By using the @ symbol and reassigning
By creating a new node
By running a Python script

Answer explanation

Attributes can be modified in VEX using the @ symbol and reassigning a new value.

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the function of a detail attribute in VEX?

It stores per-geometry data
It stores per-point data
It modifies shader properties
It changes rendering settings

Answer explanation

Detail attributes store per-geometry data in Houdini.

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