thetaStart — specify vertical starting angle. Default is 0.<br/>
thetaLength — specify vertical sweep angle size. Default is Math.PI.<br/>
</div>
<div>
The geometry is created by sweeping and calculating vertexes around the Y axis (horizontal sweep) and the Z axis (vertical sweep). Thus, incomplete spheres (akin to <em>'sphere slices'</em>) can be created through the use of different values of phiStart, phiLength, thetaStart and thetaLength, in order to define the points in which we start (or end) calculating those vertices.
<divclass="desc">The default material used by [page:ParticleSystem particle] systems.</div>
<h2>Constructor</h2>
<h3>[name]()</h3>
<h3>[name]( [page:Object parameters] )</h3>
<div>parameters is an object with one or more properties defining the material's appearance.</div>
<div>
color — Particle color in hexadecimal. Default is 0xffffff.<br/>
map — a [page:Texture texture]. Default is null. // TODO: specify what is its purpose<br/>
size — Define size of particles. Default is 1.0.<br/>
sizeAttenuation — Enable/disable size attenuation with distance.<br/>
vertexColors — Define whether the material uses vertex colors, or not. Default is false.<br/>
fog — Define whether the material color is affected by global fog settings. Default is true.
</div>
<h2>Properties</h2>
<h3>.[page:Vector3 todo]</h3>
<h2>Methods</h2>
<h3>.todo( [page:Vector3 todo] )</h3>
<div>
todo — todo<br/>
</div>
<h3>.[page:Number color]</h3>
<div>Sets the color of the particles. Default is 0xffffff.</div>
<h3>.[page:Texture map]</h3>
<div>Sets the color of the particles using data from a texture (?).</div>
<h3>.[page:Number size]</h3>
<div>Sets the size of the particles. Default is 1.0.</div>
<h3>.[page:Boolean sizeAttenuation]</h3>
<div>Specify whether particles' size will get smaller with the distance. Default is true.</div>
<h3>.[page:Boolean vertexColors]</h3>
<div>Define whether the material uses vertex colors, or not. Default is false.</div>
<div>This setting might not have any effect when used with certain renderers. For example, it is ignored with the [page:CanvasRenderer Canvas] renderer, but does work with the [page:WebGLRenderer WebGL] renderer.</div>
<h3>.[page:Boolean fog]</h3>
<div>Define whether the material color is affected by global fog settings.</div>
<div>This setting might not have any effect when used with certain renderers. For example, it is ignored with the [page:CanvasRenderer Canvas] renderer, but does work with the [page:WebGLRenderer WebGL] renderer.</div>
<divclass="desc">A class for displaying particles in the form of variable size points. For example, if using the [page:WebGLRenderer], the particles are displayed using GL_POINTS.</div>
