To make a dead portal fx:
 |
 |
 |
 |
 |
 |
 |
 |
next, using textures to make a few materials: material for noise
material for twisting purple energy:
material for smoke rings with fake depth:
material for the suck in fx:
apply above material to a semi sphere with sylindrical UV mapping:
Next, make emitters. one of them, use half cylinder, negative value of velocity to achieve suck in motion:
emitter for the noise:
emitter for the twisting purple energy:
What I learned: 1. using Cylindrical UV mapping to generate centripetal move. 2 using Sine to animate texture.
(The Sine expression is virtually identical to the Cosine expression, aside from the obvious; it performs a sine function on the incoming angle input rather than a cosine function. In most cases,
this will be connected to a Time expression to cause animation during gameplay. When doing this, the Sine expression’s single parameter,
Period, determines the number of seconds required for the waveform to complete one full cycle.)