Graphics Reference
In-Depth Information
Exploding a point cloud
You can create many interesting effects with point clouds. You can, for instance, cre-
ate water, smoke, and cloud effects. In this recipe, we show you another interesting
effect you can create with points. We'll show you how you can explode a point cloud
where each point's path is based on its normal vector.
Getting ready
For this recipe, there aren't any steps that need to be taken before we start looking at
the recipe. We've provided an example where you can see the resulting explosion in
action. Open the
06.06-explode-geometry.html
example in your browser and
you'll see a screen that looks like the following screenshot:
If you click on the
implode
button, the points will move to the middle of the screen;
if you click on
explode
, they'll move outwards. With the
speed
property, you can set
the speed at which the points will move.
How to do it…
To accomplish this effect, you only need to perform a couple of small steps:
1. The first thing we need to do is create the geometry. For the best effect, we
use a geometry with lots of vertices:
