To add particles to your scene:
1. Click the SFX
icon and then the Particle
button.
2. Select a particle from the Template gallery by double-clicking it.

3. Click the Modify tab to add advanced adjustments to your particles.

See the
generating particles section for more details.
To add a Fog to the project:
1. Click
the SFX
icon and
then the Fog
button.
2. Select a fog from the
Template
gallery by double-clicking it.

3. Alternatively, you may press the Modify tab and check the Fog box
to turn fog on.

See
the
adding fog section for more details.