akella

vec3 addGlitchEffect(vec3 render, vec2 uv, vec4 mouseFluid) {
        vec2 st = uv;
        vec2 offset = vec2(0.);
        float strength = uFluidStrength*0.7-uLetterBox*0.3;
        addFisheyeEffect(st, strength*0.5);
        vec2 glitchUv = st*vec2(3., 6.)-uTime*0.01;
        glitchUv = floor(glitchUv*15.)/15.;
        glitchUv *= vec2(0.08, 0.1);
        vec2 glitchUv2 = st*vec2(2., 5.)+uTime*0.03;
        glitchUv2 = floor(glitchUv2*vec2(10., 15.))/vec2(10., 15.);

akella

float intensity(in vec4 c) {
        return sqrt((c.x*c.x)+(c.y*c.y)+(c.z*c.z));
    }
    float sobel(float step, vec2 res, vec2 center, sampler2D tex) {
        float stepX = step/res.x*uDpr;
        float stepY = step/res.y*uDpr;
        float tLeft = intensity(texture(tex, center+vec2(-stepX, stepY)));
        float left = intensity(texture(tex, center+vec2(-stepX, 0)));
        float bLeft = intensity(texture(tex, center+vec2(-stepX, -stepY)));
        float top = intensity(texture(tex, center+vec2(0, stepY)));

akella

import * as THREE from 'three';
const { cos, sin, PI } = Math;
const TEXTURE_OFFSET = -1.855;
export const latlong2xyz = (R, longitude, latitude)=> {
    let lon = longitude * PI / 180 + 1.87; 
    const lat = latitude * PI / 180; 
    lon = -lon; 
  
 
    const x = R * cos(lat) * cos(lon);

akella

// from https://mameson.com/experiment/glsl/proven_2/proven_2.html
function mm_hash12( iw){ //★ x, y とも 0〜2,000,000 の整数入力。
	const w = iw.mul( 0.000303) //★ 入力の 6 ケタとも活かす。
		.add( fract( iw.mul( 0.707))); //★ 入力の上位ケタは捨てて下位ケタ拾い上げ。
	const a = w.x.add( w.y.mul( 0.3)); //★ 斜めにする。

	//★ 最近気に入っているフェイク sin。
	a.assign( fract( a));
	a.assign( a.sub( a.mul( a)));

akella

const rotate2D = Fn(({pos,angle})=>{
  const s = sin(angle);
  const c = cos(angle);
  const m = mat2(c, s, s.mul(-1), c);
  return m.mul(pos);
})

const rotate3D = Fn(({pos,axis,angle})=>{
  const axisNorm = normalize(axis);
  const s = sin(angle);

akella

import * as THREE from "three/webgpu";
import {
  Fn,
  positionLocal,
  sin,
  positionWorld
} from "three/tsl";
import { OrbitControls } from "three/examples/jsm/Addons.js";

akella

#define PI 3.1415926538

const float EPS = 0.001;
vec4 mod289(vec4 x) {
    return x - floor(x * (1.0 / 289.0)) * 289.0;
}
float mod289(float x) {
    return x - floor(x * (1.0 / 289.0)) * 289.0;
}
vec4 permute(vec4 x) {

akella

float fixedpow(float a, float x)
{
    return pow(abs(a), x) * sign(a);
}

float cbrt(float a)
{
    return fixedpow(a, 0.3333333333);
}

akella

//
// GLSL textureless classic 3D noise "cnoise",
// with an RSL-style periodic variant "pnoise".
// Author:  Stefan Gustavson ([email protected])
// Version: 2011-10-11
//
// Many thanks to Ian McEwan of Ashima Arts for the
// ideas for permutation and gradient selection.
//
// Copyright (c) 2011 Stefan Gustavson. All rights reserved.

akella

move(orientation, position) {
    this.isAnimated = true;
    let temp = new THREE.Vector3();
    let start = new THREE.Spherical().setFromVector3(this.camera.position);
    let finish = new THREE.Spherical().setFromVector3(position);
    if(Math.abs(start.theta-finish.theta)>Math.PI){
      if( Math.abs(start.theta-finish.theta - 2*Math.PI) <Math.abs(start.theta-finish.theta + 2*Math.PI)){
        finish.theta +=2*Math.PI
      } else{
        finish.theta -=2*Math.PI