Vector and 3d geometry

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Questions and Answers

What is a 2D texture map?

A texture map used for 2.5D rendering
A texture map with two dimensions, typically indexed by uv coordinates (correct)
A texture map with three dimensions, typically indexed by xyz coordinates
A texture map used for pseudo 3D rendering

What is the purpose of a 3D paint tool in computer graphics?

Applying edge detection and blurring to 3D models
Creating pseudo 3D effects in 2D images
Digital painting of multiple texture map image channels directly onto a rotated 3D model (correct)
Generating 3D models from scratch

What does a 3D unit vector represent?

A vector with four dimensions
A vector representing pseudo 3D space
A vector used for blurring in 3D graphics
A unit vector in 3D space (correct)

What is the purpose of a 2.5D rendering?

<p>Rendering whose result looks 3D while actually not being 3D or having great limitations (B)</p> Signup and view all the answers

What does a 4D vector commonly hold in graphics code?

<p>Homogeneous coordinates or RGBA data, or simply a 3D vector with unused W to benefit from alignment (B)</p> Signup and view all the answers

Flashcards

2D texture map

A texture map with two dimensions, typically indexed by uv coordinates, which represent the position of each pixel in the texture.

3D paint tool

A digital painting tool specifically designed for painting onto 3D models.

3D unit vector

A vector with a length of one unit, representing a direction in 3D space.

2.5D rendering

Rendering that simulates a 3D appearance, but uses techniques to create the illusion of depth without true 3D geometry.

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4D vector

A 4D vector commonly used in graphics code to represent either homogeneous coordinates, RGBA color data, or a 3D vector with an unused fourth component.

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