1 Basics: What is Emitters ?  Emitter Tool.  Working with type Emitters: omni, directional and volume.  Create Emitters from Object. 2 Examples:  The spacecraft flight. Open Water Tap.

1. Maya Dynamics Basics
Lab 3: Emitters
Author: Khieu Van Bang
Email: tribang.nd@gmail.com

2. CONTENTS
 Basics:
 What is Emitters ?
 Emitter Tool.
 Working with type Emitters: omni, directional and volume.
 Create Emitters from Object.
 Examples:
 The spacecraft flight.
 Open Water Tap.

3. 1) BASICS
Emitters Basics

4. 1) BASICS
Emitters Basics
1.1) What is Emitters ?
1.2) Emitter Tool.
1.3) Working with type Emitters: omni, directional and volume.
1.4) Create Emitters from Object.

5. 1.1.1) What is Emitters ?
Emitters generate moving or stationary particles as an animation plays. You
can use emitters to create smoke, fire, fireworks, rain, and similar objects.
1) EMITTERS BASICS

6. 1.1.1) What is Emitters ?
1) EMITTERS BASICS
 Types of emitters:
o Point emitters (directional and omni) emit particles from a position in
the workspace or from particles, vertices, CVs, edit points, or lattice
points.
o Surface emitters emit particles from random, evenly distributed
positions on the outer faces of NURBS or polygonal surfaces.
o Curve emitters emit articles from random, evenly distributed positions
of a NURBS curve.
o Volume emitters emit particles from a closed volume. You can choose
from cube, sphere, cylinder, cone and torus.

7. 1) BASICS
Emitters Basics
1.1) What is Emitters ?
1.2) Emitter Tool.
1.3) Working with type Emitters: omni, directional and volume.
1.4) Create Emitters from Object.

8. 1
2
1.2) Emitters tool.
3
4
5
6
7
1) EMITTERS BASICS
 The tools used to create and control Emitters
o Basic Emitter Attributes.
o Distance/Direction Attributes.
o Basic Emission Speed Attributes.
o Volume Emitter Attributes.
o Volume Speed Attributes.

9. 1.2.1) Basic Emitter Atributes.
 Emitter type : Select one of these choices from
the pop-up menu
o Omni: Sets the emitter type to an
omnidirectional point emitter.
o Directional: Sets the emitter type to a
directional point emitter.
o Surface: Emits particles from randomly
distributed positions.
o Curve: Emits particles from randomly
distributed positions on or near a curve.
o Volume: Emits particles from a closed volume.
3
1) EMITTERS BASICS
 Rate (Particle/Sec): average rate at which particles are emitted per second.
 Scale Rate by Object Size: the size of the object emitting the particles affects the rate of particles
emitted per frame.
 Need Parent UV (NURBS Surface emitters only): adds parentU and parentV attributes to the particle
shape and sets the needparentUV attribute to on.
 Cycle Emission: Cycle Emission lets you restart the random number sequence of the emission.
 Cycle Interval: Defines the interval in frames for restarting the random number sequence when
using Cycle Emission.

10. 1) EMITTERS BASICS
1.2.1) Basic Emitter Atributes.
 Note: difference between created Emitter by “Create Emitter” and “Emit From Object”.

11.  Min Distance : Sets the minimum distance from the emitter
at which emission occurs.
 Max Distance: Sets the maximum distance from the emitter
at which emission occurs.
 Direction X, Y, Z : emission direction relative to the emitter’s
position and orientation. Available only for directional, curve,
and volume emitters.
 Spread : emission spread angle. A value of 0.5 is 90 degrees,
a value of 1 is 180 degrees. Available for only Directional and
Curve emitters.
4
1) EMITTERS BASICS
1.2.2) Distance/Direction Atributes.

12.  Speed : Sets a speed multiplier for the original emission speed of
the emitted particles.
 Tangent Speed : magnitude of the tangent component of emission
speed for surface and curve emission.
 Normal Speed : magnitude of the normal component of emission
speed for surface and curve emission.
5
1) EMITTERS BASICS
 Speed Random : Speed Random attribute lets you add
randomness to your emission speeds without using expressions.
Each particle’s speed is a random value between:
Speed - Speed Random/2 Speed + Speed Random/2
1.2.2) Distance/Direction Atributes.

13. Use the Attribute Editor instead of the Channel Box.
 Volume Shape: Specifies the shape of the volume that the
particles are emitted into.
 Volume Offset: Offsets the emitting volume from the
location of the emitter.
 Volume Sweep: Defines the extent of rotation for all
volumes except cubes. This can be a value between 0 and
360 degrees.
 Section Radius (Torus only): Defines the thickness of the
solid portion of the torus, relative to the radius of the
torus’s central ring.
 Die on Emission Volume Exit: the emitted particles die
when they exit the volume.
6
1) EMITTERS BASICS
1.2.3) Volume Emitter Atributes.

14. Apply only to the initial velocity of the particles.
 Away From Center: move away from the center point of cube or
sphere volumes.
 Away From Axis: particles move away from the central axis of
cylinder, cone, or torus volumes.
 Along Axis: move along the central axis of all volumes.
 Around Axis: move around the central axis of all volumes.
 Random Direction: adds irregularity to the direction and initial
speed of the particle’s Volume Speed attributes, somewhat like
Spread does for other emitter types.
 Directional Speed: adds speed in the direction specified by the
Direction XYZ attributes of all volume emitters.
 Scale Speed by Size: increase the size of the volume, the speed of
the particles increases.
7
1) EMITTERS BASICS
1.2.3) Volume Speed Atributes.

15. 1) BASICS
Emitters Basics
1.1) What is Emitters ?
1.2) Emitter Tool.
1.3) Working with type Emitters: omni, directional and volume.
1.4) Create Emitters from Object.
Omni Emitters
 Directional Emitter
 Volume Emitter

16. 1.3.1) Omni Emitters
1) EMITTERS BASICS
1.3.1.1) Basic Emitter Attributes.

17. 1.3.1) Omni Emitters
1) EMITTERS BASICS
1.3.1.1) Basic Emitter Attributes.

18. 1.3.1) Omni Emitters
1) EMITTERS BASICS
1.3.1.2) Distance/Direction Attributes.
?
?

19. 1.3.1) Omni Emitters
1) EMITTERS BASICS
1.3.1.3) Basic Emission Speed
Attributes.
?

20. ?
1.3.1.4) Livespan Mode
1.3.1) Omni Emitters
1) EMITTERS BASICS

21. ?
1.3.1.5) Types of Particle render.
1.3.1) Omni Emitters
1) EMITTERS BASICS

22. 1.3.1.5) Types of Particle render.
1.3.1) Omni Emitters
1) EMITTERS BASICS

23. 1) BASICS
Emitters Basics
1.1) What is Emitters ?
1.2) Emitters Tool.
1.3) Working with type Emitters: omni, directional and volume.
1.4) Create Emitters from Object.
 Omni Emitters
Directional Emitter
 Volume Emitter

24. 1.3.2) Directional Emitter
1) EMITTERS BASICS
1.3.2.1) Basic Emitter Attributes.

25. 1) EMITTERS BASICS
1.3.2.2) Distance/Direction Attributes.
1.3.2) Directional Emitter
?
?

26. 1) EMITTERS BASICS
1.3.2.3) Basic Emission Speed Attributes.
1.4.2) Directional Emitter
?

27. 1.3.2.4) Livespan Mode
1) EMITTERS BASICS
1.3.2) Directional Emitter

28. 1.3.2.5) Types of Particle render.
1) EMITTERS BASICS
1.3.2) Directional Emitter

29. 1.3.2.5) Types of Particle render.
1) EMITTERS BASICS
1.3.2) Directional Emitter

30. 1) BASICS
Emitters Basics
1.1) What is Emitters ?
1.2) Working with type Emitters: omni, directional and volume.
1.3) Create Emitters from Object.
 Omni Emitters
 Directional Emitter
Volume Emitter

31. 1) EMITTERS BASICS
1.3.3.1) Basic Emitter Attributes.
1.3.3) Volume Emitter
?

32. 1) EMITTERS BASICS
1.3.3.2) Distance/Direction Attributes.
1.3.3) Volume Emitter
?

33. 1) EMITTERS BASICS
1.3.3.3) Basic Emission Speed Attributes.
1.3.3) Volume Emitter

34. 1) EMITTERS BASICS
1.3.3.3) Basic Emission Speed Attributes.
1.3.3) Volume Emitter

35. 1) EMITTERS BASICS
1.3.3.3) Basic Emission Speed Attributes.
1.3.3) Volume Emitter

36. 1) EMITTERS BASICS
1.3.3.3) Basic Emission Speed Attributes.
1.3.3) Volume Emitter

37. 1) EMITTERS BASICS
1.3.3.4) Volume Emitter Attributes.
1.3.3) Volume Emitter
??

38. 1) EMITTERS BASICS
1.3.3.4) Volume Emitter Attributes.
1.3.3) Volume Emitter

39. 1.3.3.4) Livespan Mode
1) EMITTERS BASICS
1.3.3) Volume Emitter
?

40. 1.3.3.5) Types of Particle render.
1) EMITTERS BASICS
1.3.3) Volume Emitter

41. 1) BASICS
Emitters Basics
1.1) What is Emitters ?
1.2) Emitters Tool.
1.3) Working with type Emitters: omni, directional and volume.
1.4) Create Emitters from Object.

42. 1.4.1) Make Emitter on curve.
1
2
3
4
1) EMITTERS BASICS

43. 1.4.2) Make Emitter on object.
1
2
3
4
1) EMITTERS BASICS

44. 1.4.2) Make Emitter on object.
1) EMITTERS BASICS

45. 1.4.3) Make Emitter on surface.
1) EMITTERS BASICS

46. 1.4.3) Make Emitter on surface.
1) EMITTERS BASICS

47. 1.4.3) Make Emitter on surface.
1) EMITTERS BASICS

48. 1.4.4) Make Emitter on vertex.
1) EMITTERS BASICS

49. 1.4.5) Make Emitter on other Emitter.
 Step 1: Create a Emitter.
 Step 2: Select created Emitter, then Create new Emitter.
 Step 3: Change type Emitter and attribute.
1) EMITTERS BASICS

50. Emtters Basics
2) EXAMPLES

51. Emtters Basics
2) EXAMPLES
2.1) The spacecraft flight.
2.2) Open Water Tap.

52. 2) EXAMPLE
2.1) The spacecraft flight.
This example is a form of set key parent.

53. Emtters Basics
2) EXAMPLES
2.1) Create a text effect.
2.2) Open Water Tap.

54. 2.2) Open Water Tap.
2) EXAMPLE
This example is a form of set key lifePan.

55. Thanks!