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Understanding Particles and Dynamics in Maya—Part 13

Preview


1. Creating Fluid Dynamics Container

Step 1

Open Maya.

Open Maya
Open Maya

Step 2

Create a cylinder in the
perspective view port. 

Create a cylinder
Create a cylinder

Step 3

Press F11 key to
jump in the face selection mode. Select all faces of the cylinder except the
top faces and delete them.

Press F11 key
Press F11 key

Step 4

Rename the object as Emitter
and go to Edit > Delete > History to delete history.

Rename the object
Rename the object

Step 5

Jump in Dynamics
mode. Go to Fluid Effects > Create 3D Container and draw a 3D fluid
container in the view port as shown in the following image.

Jump in Dynamics mode
Jump in Dynamics mode

Step 6

Go to fluidShape1 attribute
and set the value of Base Resolution to 50. You can change this
value to 150 just before rendering for the final output. 

Change the
values of Temperature and Fuel to Dynamic Grid.

Go to fluidShape1
Go to fluidShape1

Step 7

Select the container
followed by the emitter object and then go to Fluid Effects > Add / Edit
Contents > Emit from Object
.

Fluid Effects  Add Edit Contents  Emit from Object
Fluid Effects > Add/ Edit Contents > Emit from Object

Step 8

Press the Play
button and you will see smoke emission from the emitter object as shown in the
following image.

Hit the Play button
Hit the Play button

Step 9

Go to fluidShape1 attribute
and under Display rollout, set the Boundary Draw option to Bounding
box
.

Go to fluidShape1
Go to fluidShape1

Step 10

Go to Container
Properties
and set the options of Boundary X to None, Boundary
Y
to –Y Side and Boundary Z to None. Set the values of
the grid as shown in the following image.

Go to Container Properties
Go to Container Properties

Step 11

Go to Auto Resize
to turn on Auto Resize option and turn off Resize Closed Boundaries
and Resize in Substeps options. Set the values of Auto Resize
Threshold
to 0.002 and Auto Resize Margin to 4.

Auto Resize option
Auto Resize option

Step 12`

Go to Dynamic
Simulation
roll out and set the values of Damp to 0.025, High
Detail Solve
to All Grids, Solver Quality to 50 and Simulation
Rate Scale
to 1.300.

Dynamic Simulation
Dynamic Simulation 

Step 13

Go to fluidShape1
> Content Details > Density
and set the values of Buoyancy to 10
and Dissipation to 0.4. Go to Velocity and set the values
of Swirl to 25 and Noise to 0.250.

fluidShape1  Content Details  Density
fluidShape1 > Content Details > Density

Step 14

Go to Temperature
and set the values of Buoyancy to 8.5, Dissipation to 0.1,
Diffusion
to 2 and Turbulence to 6.

Temperature
Temperature 

Step 15

Go to Fuel and
set the values of Fuel Scale to 2.5, Ignition Temperature
to 0.1, Maximum Temperature to 1 and Heat Released
to 0.5.

Fuel
Fuel 

Step 16

Go to Shading >
Color
and click on Selected Color option. Set the color to bit dark.
It changes the color of the smoke in the view port.

Shading  Color
Shading > Color

Step 17

Set the Incandescence
color as shown in the following image.

Set the Incandescence color
Set the Incandescence color

Step 18

Set the Input Bias value to 0.7. Play with
this value to control the fire and smoke ratio. 

Input Bias value
Input Bias value

Step 19

Go to Opacity and click
on the Graph button. Add the opacity values in the graph as shown in the
following image. Set the value of Input Bias to 0.300.

 Opacity
Opacity

Step 20

Go to Shading Quality and set the value of Render
Interpolator
to Smooth.

Shading Quality
Shading Quality

Step 21

Go to Lighting
roll out and turn on Self Shadow option and change the value of Shadow
Quality
of 1. Set the Ambient Brightness value to 0.2.

Lighting roll out
Lighting roll out

Step 22

Go to Dynamic
Simulation
> Temperature roll out and set the value of Temperature
Scale
to 5. You will notice the sub-surface-scattering effect in the
smoke as shown in the following image.

Dynamic Simulation  Temperature
Dynamic Simulation > Temperature

2. Adding Lights and Wind

Step 1

Create a directional
light in the scene. Turn on Use Ray Trace Shadow option.

Use Ray Trace Shadow
Use Ray Trace Shadow

Step 2

With the fluid container
selected, go to Fields > Air and draw an icon of air field in the
view port.

Fields  Air
Fields > Air 

Step 3

With the air field
selected, go to Channel Box / Layer Editor and set the Direction X
to -1 and Magnitude to 100.

Channel Box Layer Editor
Channel Box/ Layer Editor 

Step 4

Hit the Render
button and you will see the rendered frame as shown in the following image.

Render button
Render button

3. Render Settings

Step 1

Open Render Settings
window. Change the rendering engine to Mental Ray.

Render Settings window
Render Settings window

Step 2

Open Anti- aliasing Quality roll out and change the Quality to Production quality.

Anti- aliasing Quality
Anti- aliasing Quality

Step 3

Hit the Render
button to render the frames. You will see the rendered frames as shown in the
following image.

Hit the Render button
Hit the Render button

Conclusion

In the next part of the tutorial, I’ll show you how to create flame thrower effect using fluid dynamics in Maya.