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Very Easy Particle Sysytem for Three.js
var jenP = null;
// after scene =new THREE.Scene...
jenP = new jenParticle();
scene.add(jenP);
jenP.appearsParticle(1);
There is a demo for preview & code generation to make editing easier
When you like it, press "Generate" at the bottom of the screen, copy the text from the text box below, Please stick it to the appropriate place.
| PropertyName | type | defaultValue | description |
|---|---|---|---|
| isAlphaAdd | boolean |
true | Specify whether addition transparent or alpha synthesis. |
| isTextured | boolean |
true | Specify whether to apply noise texture. |
| colors | Color[3] |
[ THREE.Color(1.0, 1.0, 0.5), THREE.Color(0.8, 0.4, 0.0), THREE.Color(0.2, 0.0, 0.0) ] | Specify the color of the particle. [0] It will be the color of the center. [1] It will be the outermost color. [2] It will be the color after the change over time. For common patterns, it would be better to specify [0] the brightest color, [2] the darkest color, and [1] its intermediate color (or complementary color). |
| gravity | Vector3 |
THREE.Vector3(0.0, 0.17, 0.0) | Specify the amount of movement required for particles. You should think that it is like gravity or wind. |
| blurPower | float |
0.07 | Specify the shape change amount of the particle by moving amount. If it is zero, it will not change shape due to the movement amount. I will move with the circle. When 1.0 is specified, the origin is displayed in a connected shape after movement. |
appearsParticle(addFrameCount, _option = {} );
| PropertyName | type | defaultValue | description |
|---|---|---|---|
| addFrameCount | int |
! MUST ! | Specify the amount of [particle] to appear at once. This parameter is mandatory and can not be omitted. |
| Below is the contents of option structure | |||
| basePos | Vector3 |
THREE.Vector3(0.0, 0.0, 0.0) | Specify the appearance position of particles. |
| scale | float |
1.0 | Specify the size of one basic particle. |
| scaleRandom | float |
0.2 | Specify the random addition value of the size for each particle. If it is zero, all the particle will be the same size. |
| vect | Vector3 |
Random | Specify the basic movement direction of the particle. If it is zero, "basically" will not move (see below) |
| col | Color |
White(1.0,1.0,1.0) | If you want to change the color for each particle, use it for the specified color. |
| speed | float |
0.2 | It is the moving speed of particle. 0 will stagnate on the spot. |
| explose | float |
0.5 | Specify the strength to set the movement direction at random with respect to the movement direction (vect). If 0, particles move as specified by vect and if 1.0 is specified, particles will be moved ignoring the value of vect. |
| viscosity | float |
0.9 | For the speed, specify the value that takes over time. If this value is 1.0, the particles will move at the same speed all the time and if you specify a value less than 1.0 the grain will gradually slow down so that the brakes will apply. Conversely, if you specify a value larger than 1.0, the particles will gradually accelerate. |
| lifeTimeFactor | float |
Random(0.5～1.5) | Specify the life of the particle. If it is normal (1.0), particles will disappear in 1 second. This value works as magnification for 1 second, and you can change the particle display time. If you decrease the value, particles will disappear in a shorter time. |
MIT.