9

Fire Environment Effect 277
Example: To create a campfire:
1.
Click Helpers on the Create panel and choose
Atmospheric Apparatus (page 3–304) from the
subcategory list.
2. Click Sphere Gizmo. Drag the cursor in the Top
view por t to define an apparatus r adius of about
20units.TurnontheHemispherecheckboxin
Sphere Gizmo Parameters.
3. Click Non-Uniform Scale. Click Yes in the
Warningdialog(thiswarningdoesn’tapplyto
atmospheric gizmos), and scale the apparatus
250percentalongitslocalZaxisonly.Youcan
then model logs, embers, and rocks around the
base of the apparatus.
4. OpentheModifypaneloftheSphereGizmo.
OntheAtmosphererollout,clickAddand
chooseFirefromtheAddAtmospheredialog.
5. Highlight Fire in the Atmospheres list under
the Atmospheres & Effects rollout. Click Setup.
6. Set the follow ing parameters under Shape and
Characteristics:
•FlameType=Te n d r i l
•Stretch=0.8
•FlameSize=18.0
•FlameDensity=30.0
7. Turn on Auto Key and advance to the end of
the animation.
8. Set the following p arameters under Motion:
•Phase=300.0
•Drift=200.0
The Fire effect doesn’t cast any light in the scene.
If you want to simulate illumination from the fire
effect, you must create lights as well.
Example m odel with fire
Interfa ce
You create a fire apparatus, or "gizmo," to position
theeffectinyoursceneandtodefinethemaximum
boundaries of the effect. The apparatus is a Helper