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Flashcards in Homework3 Deck (10)
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1

What does a RAW file contain?

RAW files simply contain the bytes of the image one after another.

2

What is the program Terragen used for?

a program used to generate heightmaps procedurally that provides tools for modifiying heightmaps

3

True or False

 

Blend maps are embedded into the alpha channels of color maps.

False

4

You can use a __________ filter to smooth out rough edges of a heightmap.

blur

5

You use a(n) _________ to describe hills and valleys in a terrain.

heightmap

6

After you finish creating your heightmap, in what format should you save it (according to the book)?

8-bit RAW file

7

In what two ways can heightmaps be generated?

procedurally with a program like Terragen or in an image editor such as Photoshop

8

True or False

 

When using a heightmap you can only apply one single texture to the entire heightmap.

False

9

Why can RAW files be easily read in a block of memory with one std::ifstream::read call?

Because a RAW file is nothing more than a contiguous block of bytes (where each byte is a heightmap entry).

10

What are blend maps used for?

when blending layers, it is used to control the amount each layer contributes to the final terrain image