AlexAegis/loreplotter

import { Shader } from 'three';

export const atmosphereShader: Shader = {
    uniforms: {},
    vertexShader: `
    uniform vec3 viewVector;
    uniform float c;
    uniform float p;
    varying float intensity;
    void main()
    {
        vec3 vNormal = normalize( normalMatrix * normal );
        vec3 vNormalView = normalize( normalMatrix * viewVector );
        intensity = pow( c - dot(vNormal, vNormalView), p );

        gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
    }`,
    fragmentShader: `uniform vec3 glowColor;
    varying float intensity;
    void main()
    {
        vec3 glow = glowColor * intensity;
        gl_FragColor = vec4( glow, 1.0 );
    }`
};