Understanding Particles and Dynamics in Maya—Part 9

Understanding Particles and Dynamics in Maya—Part 9

1. Creating a Fluid Dynamics Container

Step 1

Open Maya.

Open Maya
Open Maya

Step 2

Jump into Polygon mode and go to Create
> Polygon Primitives > Cylinder
.

Create  Polygon Primitives  Cylinder
Create > Polygon Primitives > Cylinder

Step 3

Create a cylinder shape in the perspective
viewport.

Create a cylinder
Create a cylinder

Step 4

With the cylinder selected, press F11 to
jump into face selection mode. Select and delete the lower part of the
cylinder. This will act as an emitter object.

F11 key
F11 key

Step 5

Jump into Dynamics mode and go to Fluid
Effects > Create 3D Container
to create a fluid container in the
viewport. Keep the emitter object inside the container.

Fluid Effects  Create 3D Container
Fluid Effects > Create 3D Container

Step 6

Select the emitter object followed by the container and
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 7

Press the play button and you’ll see smoke emission
from the emitter inside the container.

Hit the play button
Hit the play button

2. Tweaking Fluid Properties

Step 1

This is quite a basic smoke without having any
volume and fluid essence. You need to tweak some properties and parameters.

Go to the Dynamic
Simulation
tab and set the values of Damp to 0.003, High
Detail Solver
to All Grids, and Simulation Rate Scale to 1.200

Dynamic Simulation
Dynamic Simulation

Step 2

Go to the Container Properties tab and increase
the Base Resolution to 50

Container Properties
Container Properties

Step 3

Go to the Lighting tab, turn on the Self
Shadow
option, and increase the value of Shadow Quality to 1.
You can now see the self shadow of the smoke inside the viewport.

Lighting tab
Lighting tab

Step 4

To change the color of the smoke, go to the Shading
> Color
tab and change the colour of the smoke by clicking on the Selected
Color
option. 

Shading  Color
Shading > Color

Step 5

Go to the Auto Resize tab and turn on the Auto
Resize
option. The grid will now keep expanding according to the smoke
expansion.

Auto Resize
Auto Resize

Step 6

Go to the Content Details > Density tab and
set the values of Buoyancy to 10, Dissipation to 0.500, and Noise to 0.100

Content Details  Density
Content Details > Density

Step 7

Go to the Velocity tab and set the values of Swirl
to 4 and Noise to 0.100.

Velocity tab
Velocity tab

Step 8

Go to the Turbulence tab and set the value of Strength
to 0.025.

Turbulence tab
Turbulence tab

Step 9

Go to the Shading tab and you can play with the Transparency
value for the desired falloff transparency of the smoke, as shown in the
following image.

Shading tab
Shading tab

Step 10

Go to the Shading Quality tab and set the value
of Quality to 1.500

Shading Quality tab
Shading Quality tab

Step 11

Go to Create > Lights > Directional Light
and create a directional light in the scene, as shown in the following image.

Create  Lights  Directional Light
Create > Lights > Directional Light

Step 12

Keep the value of the Intensity as 1.5
and turn on the Use Ray Trace Shadow option.

Use Ray Trace Shadow
Use Ray Trace Shadow

Step 13

Go to the Fluid Attributes tab and Increase the Density/
Voxel/ Sec
value to 5.

Density Voxel Sec
Density/ Voxel/ Sec

Step 14

Go to the Container Properties tab and increase
the Base Resolution to 250. For final production-quality
rendering, you can increase this value to 400.

Container Properties
Container Properties

Step 15

Open the Render Settings window. Set Render
Using
to Mental Ray. Go to the Shadows tab and set Shadow
Method
to Segments.

Render Settings
Render Settings

Step 16

Hit the Play button to render the frame. You
will see the simulation of thick smoke coming out from the emitter object.

Hit the Play button
Hit the Play button

Conclusion

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

/ 3D Graphics

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