texture-generator

Procedural Equirectangular Textures

Stars

This texture renders a sky with stars. Because this version works on a line-per-line basis, the distribution and shape of stars near the poles are not that good. The generated texture is intended for color maps. Click on a snapshot to open it online.

Code example

Code template of parameters with their default values.

import * as PET from "pet/patterns/stars.js";
:
model.material.map = PET.texture( );
PET.material( model.material );

Parameters

The parameters of the texture generator are:

• width – texture width in pixels, default 1024
• height – texture height in pixels, default 512
• density – density of stars [0,100], default 20
• brightness – brightness of stars [0,100], default 20
• variation – hue variation [0,100], default 0
• color – color of stars, default 0xFFF5F0 (light blue)
• background – color of sky, default 0x000060 (dark blue)

Hue variation is noticeable when the color of stars is not pure white.

API

All texture modules share the same API.

• pattern( x, y, z, color, options ) – pattern implementation
• texture( {params} ) – generator for a texture with given parameters
• defaults – object with default parameters
• material( ... ) – material shader patcher

Online generator

online/stars.html

Source

src/patterns/stars.js

Back

This site is open source. Improve this page.