Using the Fountain FX (II) – Parameters

By Rodrigo Duarte on September 3, 2012

Let us continue our exploration of the Fountain FX. This time we’ll have a look at the parameters of the FX.

After the first Fountain FX tutorial, we are familiar with the general settings of the FX:

Let us have a look at the parameters and how they impact the appearance of our fountains.

Amount

Amount controls how many particles are expelled.

Amount=10

Amount=100

Amount=1,000

Amount=10,000

Amount=100,000

Life

Life controls the duration of the particles of the fountain.

Life: min=0, max=1

Life: min=0, max=2

Life: min=0, max=5

Life: min=3, max=5

Seed

Seed is a number that enables us to make different fountains with the same parameters.

Seed=9 (the default value)

Seed=18

Apparently the same fountain, yet not exactly the same.

Size

The size of the particles can be determined here. We define a range of sizes.

Sizes range from 1 to 5

Sizes range from 0.5 to 10

Sizes range from 0.5 to 20

Speed

The speed of the fountain particles is determined here. Gravity pulls on the particles emitted by the fountain, so speed is important for controlling the height of the fountain.

Speed=600

Speed=900

Speed=1200

Weight

Weight controls how much particles are pulled by gravity. Negative weights create floating particles, while positive weights create particles that are pulled by gravity.

The animation below shows change from weight 50 to weight -50.

Bounce

Bounce controls the height of the bounce.

For bounce to take effect, we need a Collision object so our particles can bounce off something.

Setting a collision object in the Project Window

Here is an example of Bounce in action. Towards the end of the animation the bounce diminishes until it reaches zero.

 

These are the parameters we’ll play with.

More to follow 🙂