Lay Out in Sketch Up Pro lets you add model views to pages, choose drawing scales, adjust line weights, and add dimensions, callouts, and graphics.
Make a change to your Sketch Up model, and find it reflected automatically in Lay Out.
Therefore, the variations among demos created for one computer line were attributed to programming alone, rather than one computer having better hardware.
This created a competitive environment in which demoscene groups would try to outperform each other in creating outstanding effects, and often to demonstrate why they felt one machine was better than another (for example Commodore 64 or Amiga versus Atari 800 or ST).
Gradually, these static screens evolved into increasingly impressive-looking introductions containing animated effects and music.
Eventually, many cracker groups started to release intro-like programs separately, without being attached to unlicensed software.
On the ZX Spectrum, Castor Cracking Group released their first demo called Castor Intro in 1986.
The ZX Spectrum demo scene was slow to start, but it started to rise in the late 1980s, most noticeably in Eastern Europe.
Programs of limited size are usually called intros.
Whilst competing with each other in 1986, they both produced pure demos with original graphics and music involving more than just casual work, and used extensive hardware trickery.
At the same time demos from others, such as Antony Crowther (Ratt), had started circulating on Compunet in the United Kingdom.
These programs were initially known by various names, such as letters or messages, but they later came to be known as demos.
Simple demo-like music collections were put together on the C64 in 1985 by Charles Deenen, inspired by crack intros, using music taken from games and adding some homemade color graphics.