O'Reilly logo

Google SketchUp for Game Design by Robin de Jongh

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

What are pixels?

All digital images are made up of thousands of dots of color, arranged in a grid. A pixel is the smallest part of that grid. So, a 1024-pixel wide image has 1024 dots in each row of dots. If the image is also 1024 pixels high, it has 1024 of these rows, making a little over 1 million dots, or pixels.

What you are doing by manipulating an image is changing the color or shade in many individual dots at the same time. If you type in 2000 into the zoom field and hit Enter, you can see these individual pixels in your texture image. If you hold the book at arms length and squint a little you'll see the colored pixels make up a nail in the wood.

Texture sizes

The reason you resized to 1024 x 1024 pixels is because the image you had was ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required