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Session 09 – particle goal

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1 Overview Particle Goal :
 What is Particle Goal ?
 What we can do with Particle Goal ?

2 Integrated with Particle Goal :
 Create Integrated with Particle Goal.
 Practical situations.

3 Exercise:
 Create a virtual experiments.

Published in: Education
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Session 09 – particle goal

  1. 1. Maya Dynamics Basics Lab 9: Particle Goal Author: Khieu Van Bang Email: tribang.nd@gmail.com
  2. 2. CONTENTS  Overview Particle Goal :  What is Particle Goal ?  What we can do with Particle Goal ?  Integrated with Particle Goal :  Create Integrated with Particle Goal.  Practical situations.  Exercise:  Create a virtual experiments.
  3. 3. Particle Goal 1) OVERVIEW PARTICLE GOAL
  4. 4. 1.1) Goal ? PARTICLE GOAL Working with Particle Goal ( A goal is an object that particles follow or move towards. You can use goals to give trailing particles a flowing motion that’s hard to generate with other animation techniques. The trailing particles move as if connected to the goal by invisible springs. In the context of goals, soft bodies are considered particles ).
  5. 5. 1.2) What is Particle Goal ? PARTICLE GOAL Particle objects are useful as goal objects because of the many techniques available for animating particle motion. You can’t add a goal to individual particles of the particle object, but you can control how influential each particle is on the trailing object. If the goal is a particle object, its particles attract the particles of the trailing object one for one as the animation plays. If particles in the objects do not die, the trailing particles follow goal particles based on the creation order. If particles in either object die, the preceding scheme no longer applies. You can no longer visually predict which trailing particle will follow a particular goal particle. If the trailing particle object has more particles than the goal object and particles don’t die in either object, the extra particles follow the first-created particles of the goal. For instance, suppose you create a goal object with two particles and a trailing object with four particles. The four particles would move toward the two particles like this:
  6. 6. 1.3) What is Multiple goals ? PARTICLE GOAL You can use more than one goal object to affect a particle object. For each goal object, the trailing particle object has a goal weight that sets the relative weighting of the attraction. If the goal weights are the same, each goal object attracts the trailing object with equal strength. The trailing object moves to a position between the two goal objects, typically oscillating back and forth before coming to equilibrium. If the goal weights differ, each goal object attracts the trailing object with different strength. The trailing object comes to rest at a position closer to the goal with the higher goal weight.
  7. 7. 1.4) What we can do with Particle Goal? PARTICLE GOAL Insect swarm Cars WaterfallVirtual experiments Fantasy effect
  8. 8. 1.5) Create a Particle Goal. PARTICLE GOAL  Step 1: o Select the particle object you want to be affected by the goal. o To select a soft body rather than a conventional particle object, you can select the soft body’s original geometry or its child particle object.  Step 2: Shift-select the object you want to become the goal.  Step 3: Select Particles > Goal.  Step 4: To adjust the goal’s influence, see Edit goal attributes.  Step 5: Play the animation to see the particles move towards the goal. 1 2
  9. 9. 1.5) Create a Particle Goal. PARTICLE GOAL  Goal Weight: o The goal weight sets how much all particles of the trailing object are attracted to the goal. o You can set goal weight to a value between 0 and 1. A value of 0 means that the goal’s position has no effect on the trailing particles. A value of 1 moves the trailing particles to the goal object position immediately.  Use Transform as Goal: o Makes particles follow the object’s transform rather than its particles, CVs, vertices, or lattice points.
  10. 10. Particle Goal 2) INTEGRATED WITH PARTICLE GOAL
  11. 11. INTEGRATED WITH PARTICLE GOAL o nParticle, Goal, Expression, Fields, Instanter. o Soft Body, Rigid Body, Goals, Instanter. o …  Create Integrated with Particle Goal. Green sweat Goo blowoff Mudballs med goals
  12. 12. INTEGRATED WITH PARTICLE GOAL  Practical situations o nParticle, Goal, Expression, Fields, Instanter. Bee 1 Bee 2 Bee n Fields nParticle + Instanter Bee 1 Bee2 Been Goal
  13. 13. 2.1) Simulation Basic Object. PRACTICAL SITUATIONS  Modeling Object.  Create animation.  Export file.
  14. 14. 2.2) Create a Particle System. PRACTICAL SITUATIONS  Create Plan.  Create emitter.
  15. 15. 2.3) Creating Particle Goal. PRACTICAL SITUATIONS  Select Object and Particle then Click Dynamics > Particles > Goal.
  16. 16. 2.4) Edit attributes. PRACTICAL SITUATIONS  Add attributes.  Write code in Expression. 1 2 3 4 5 6
  17. 17. 2.4) Edit attributes. PRACTICAL SITUATIONS  Edit Goal.
  18. 18. PRACTICAL SITUATIONS 2.4) Edit attributes.  Edit Expression.
  19. 19. 2.5) Adding Fields. PRACTICAL SITUATIONS
  20. 20. 2.6) Particle Instancer. PRACTICAL SITUATIONS
  21. 21. 2.6) Particle Instancer. PRACTICAL SITUATIONS
  22. 22. 2.6) Particle Instancer. PRACTICAL SITUATIONS
  23. 23. Particle Goal 2) EXAMPLES
  24. 24.  Create a virtual experiments. EXERCISE Molecular run when power off Molecular run when power on
  25. 25.  How to ? EXERCISE Molecular run when power off Molecular run when power on  Step 1: Modeling Objects.  Step 2: Create four Emitter(Na+; Cl-; H+, O- );  Step 3: Create Particle Gold.  Step 4: Create Particle Instancer.
  26. 26. Thanks!

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