Merge branch 'master' of https://git.vettaio.com/ppugliese/web_ar

fluid.js

@@ -1,558 +1,280 @@
 "use strict";
-
 // ===== CONFIGURACIÓN DEL EFECTO =====
 const config = {
-  TEXTURE_DOWNSAMPLE: 1,
+    TEXTURE_DOWNSAMPLE: 1,
-  DENSITY_DISSIPATION: 0.975,
+    DENSITY_DISSIPATION: 0.975,
-  VELOCITY_DISSIPATION: 0.98,
+    VELOCITY_DISSIPATION: 0.98,
-  PRESSURE_DISSIPATION: 0.8,
+    PRESSURE_DISSIPATION: 0.8,
-  PRESSURE_ITERATIONS: 20,
+    PRESSURE_ITERATIONS: 20,
-  CURL: 30,
+    CURL: 30,
-  SPLAT_RADIUS: 0.003
+    SPLAT_RADIUS: 0.003
 };
 
 // ===== INICIALIZAR CANVAS =====
 let canvas = document.getElementById("fluidCanvas");
-console.log("Canvas encontrado:", canvas);
 if (!canvas) {
-  console.error("ERROR: No se encontró el canvas con id 'fluidCanvas'");
+    console.error("ERROR CRÍTICO: No se encontró <canvas id='fluidCanvas'> en el HTML");
 }
+
 canvas.width = window.innerWidth;
 canvas.height = window.innerHeight;
 
-// ===== CONTEXTO WEBGL =====
 let pointers = [];
-let splatStack = [];
 
 function getWebGLContext(canvas) {
-  let params = {
+    let params = {
-    alpha: false,
+        alpha: true,  // ✅ TRANSPARENCIA ACTIVADA
-    depth: false,
+        depth: false,
-    stencil: false,
+        stencil: false,
-    antialias: false
+        antialias: false
-  };
+    };
-  let gl = canvas.getContext("webgl2", params);
+    
-  let isWebGL2 = !!gl;
+    // ✅ SIN ESPACIOS DENTRO DE LAS COMILLAS
-  if (!isWebGL2)
+    let gl = canvas.getContext("webgl2", params);
-    gl =
+    let isWebGL2 = !!gl;
-      canvas.getContext("webgl", params) ||
+    
-      canvas.getContext("experimental-webgl", params);
+    if (!isWebGL2) {
-  let halfFloat = gl.getExtension("OES_texture_half_float");
+        gl = canvas.getContext("webgl", params) || canvas.getContext("experimental-webgl", params);
-  let support_linear_float = gl.getExtension("OES_texture_half_float_linear");
+    }
-  if (isWebGL2) {
+    
-    gl.getExtension("EXT_color_buffer_float");
+    let halfFloat = gl.getExtension("OES_texture_half_float");
-    support_linear_float = gl.getExtension("OES_texture_float_linear");
+    let support_linear_float = gl.getExtension("OES_texture_half_float_linear");
-  }
+    
-  gl.clearColor(0.0, 0.0, 0.0, 1.0);
+    if (isWebGL2) {
-  let internalFormat = isWebGL2 ? gl.RGBA16F : gl.RGBA;
+        gl.getExtension("EXT_color_buffer_float");
-  let internalFormatRG = isWebGL2 ? gl.RG16F : gl.RGBA;
+        support_linear_float = gl.getExtension("OES_texture_float_linear");
-  let formatRG = isWebGL2 ? gl.RG : gl.RGBA;
+    }
-  let texType = isWebGL2 ? gl.HALF_FLOAT : halfFloat.HALF_FLOAT_OES;
+    
-  return {
+    // ✅ ÚLTIMO 0 = TRANSPARENCIA TOTAL DEL FONDO
-    gl: gl,
+    gl.clearColor(0.0, 0.0, 0.0, 0.0);
-    ext: {
+    
-      internalFormat: internalFormat,
+    let internalFormat = isWebGL2 ? gl.RGBA16F : gl.RGBA;
-      internalFormatRG: internalFormatRG,
+    let internalFormatRG = isWebGL2 ? gl.RG16F : gl.RGBA;
-      formatRG: formatRG,
+    let formatRG = isWebGL2 ? gl.RG : gl.RGBA;
-      texType: texType
+    let texType = isWebGL2 ? gl.HALF_FLOAT : halfFloat.HALF_FLOAT_OES;
-    },
+    
-    support_linear_float: support_linear_float
+    return {
-  };
+        gl: gl,
+        ext: { internalFormat, internalFormatRG, formatRG, texType },
+        support_linear_float: support_linear_float
+    };
 }
 
-let _getWebGLContext = getWebGLContext(canvas);
+let _ctx = getWebGLContext(canvas);
-let gl = _getWebGLContext.gl;
+let gl = _ctx.gl;
-let ext = _getWebGLContext.ext;
+let ext = _ctx.ext;
-let support_linear_float = _getWebGLContext.support_linear_float;
+let support_linear_float = _ctx.support_linear_float;
 
 // ===== POINTER =====
 function pointerPrototype() {
-  this.id = -1;
+    this.id = -1; this.x = 0; this.y = 0; this.dx = 0; this.dy = 0;
-  this.x = 0;
+    this.down = false; this.moved = false; this.color = [0.8, 0.2, 0.6];
-  this.y = 0;
-  this.dx = 0;
-  this.dy = 0;
-  this.down = false;
-  this.moved = false;
-  this.color = [30, 0, 300];
 }
 pointers.push(new pointerPrototype());
 
-// ===== SHADERS =====
+// ===== SHADERS (Código WebGL estándar) =====
 let GLProgram = (function () {
-  function GLProgram(vertexShader, fragmentShader) {
+    function GLProgram(vertexShader, fragmentShader) {
-    if (!(this instanceof GLProgram))
+        this.uniforms = {};
-      throw new TypeError("Cannot call a class as a function");
+        this.program = gl.createProgram();
-    this.uniforms = {};
+        gl.attachShader(this.program, vertexShader);
-    this.program = gl.createProgram();
+        gl.attachShader(this.program, fragmentShader);
-    gl.attachShader(this.program, vertexShader);
+        gl.linkProgram(this.program);
-    gl.attachShader(this.program, fragmentShader);
+        if (!gl.getProgramParameter(this.program, gl.LINK_STATUS)) throw gl.getProgramInfoLog(this.program);
-    gl.linkProgram(this.program);
+        let uniformCount = gl.getProgramParameter(this.program, gl.ACTIVE_UNIFORMS);
-    if (!gl.getProgramParameter(this.program, gl.LINK_STATUS))
+        for (let i = 0; i < uniformCount; i++) {
-      throw gl.getProgramInfoLog(this.program);
+            let uniformName = gl.getActiveUniform(this.program, i).name;
-    let uniformCount = gl.getProgramParameter(this.program, gl.ACTIVE_UNIFORMS);
+            this.uniforms[uniformName] = gl.getUniformLocation(this.program, uniformName);
-    for (let i = 0; i < uniformCount; i++) {
+        }
-      let uniformName = gl.getActiveUniform(this.program, i).name;
-      this.uniforms[uniformName] = gl.getUniformLocation(
-        this.program,
-        uniformName
-      );
     }
-  }
+    GLProgram.prototype.bind = function () { gl.useProgram(this.program); };
-  GLProgram.prototype.bind = function bind() {
+    return GLProgram;
-    gl.useProgram(this.program);
-  };
-  return GLProgram;
 })();
 
 function compileShader(type, source) {
-  let shader = gl.createShader(type);
+    let shader = gl.createShader(type);
-  gl.shaderSource(shader, source);
+    gl.shaderSource(shader, source);
-  gl.compileShader(shader);
+    gl.compileShader(shader);
-  if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS))
+    if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) throw gl.getShaderInfoLog(shader);
-    throw gl.getShaderInfoLog(shader);
+    return shader;
-  return shader;
 }
 
-// ===== VERTEX SHADER =====
+let baseVertexShader = compileShader(gl.VERTEX_SHADER, "precision highp float; precision mediump sampler2D; attribute vec2 aPosition; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform vec2 texelSize; void main () { vUv = aPosition * 0.5 + 0.5; vL = vUv - vec2(texelSize.x, 0.0); vR = vUv + vec2(texelSize.x, 0.0); vT = vUv + vec2(0.0, texelSize.y); vB = vUv - vec2(0.0, texelSize.y); gl_Position = vec4(aPosition, 0.0, 1.0); }");
-let baseVertexShader = compileShader(
+let clearShader = compileShader(gl.FRAGMENT_SHADER, "precision highp float; precision mediump sampler2D; varying vec2 vUv; uniform sampler2D uTexture; uniform float value; void main () { gl_FragColor = value * texture2D(uTexture, vUv); }");
-  gl.VERTEX_SHADER,
+let displayShader = compileShader(gl.FRAGMENT_SHADER, "precision highp float; precision mediump sampler2D; varying vec2 vUv; uniform sampler2D uTexture; void main () { gl_FragColor = texture2D(uTexture, vUv); }");
-  "precision highp float; precision mediump sampler2D; attribute vec2 aPosition; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform vec2 texelSize; void main () {     vUv = aPosition * 0.5 + 0.5;     vL = vUv - vec2(texelSize.x, 0.0);     vR = vUv + vec2(texelSize.x, 0.0);     vT = vUv + vec2(0.0, texelSize.y);     vB = vUv - vec2(0.0, texelSize.y);     gl_Position = vec4(aPosition, 0.0, 1.0); }"
+let splatShader = compileShader(gl.FRAGMENT_SHADER, "precision highp float; precision mediump sampler2D; varying vec2 vUv; uniform sampler2D uTarget; uniform float aspectRatio; uniform vec3 color; uniform vec2 point; uniform float radius; void main () { vec2 p = vUv - point.xy; p.x *= aspectRatio; vec3 splat = exp(-dot(p, p) / radius) * color; vec3 base = texture2D(uTarget, vUv).xyz; gl_FragColor = vec4(base + splat, 1.0); }");
-);
+let advectionShader = compileShader(gl.FRAGMENT_SHADER, "precision highp float; precision mediump sampler2D; varying vec2 vUv; uniform sampler2D uVelocity; uniform sampler2D uSource; uniform vec2 texelSize; uniform float dt; uniform float dissipation; void main () { vec2 coord = vUv - dt * texture2D(uVelocity, vUv).xy * texelSize; gl_FragColor = dissipation * texture2D(uSource, coord); }");
-
+let divergenceShader = compileShader(gl.FRAGMENT_SHADER, "precision highp float; precision mediump sampler2D; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform sampler2D uVelocity; void main () { float L = texture2D(uVelocity, vL).x; float R = texture2D(uVelocity, vR).x; float T = texture2D(uVelocity, vT).y; float B = texture2D(uVelocity, vB).y; float div = 0.5 * (R - L + T - B); gl_FragColor = vec4(div, 0.0, 0.0, 1.0); }");
-// ===== FRAGMENT SHADERS =====
+let curlShader = compileShader(gl.FRAGMENT_SHADER, "precision highp float; precision mediump sampler2D; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform sampler2D uVelocity; void main () { float L = texture2D(uVelocity, vL).y; float R = texture2D(uVelocity, vR).y; float T = texture2D(uVelocity, vT).x; float B = texture2D(uVelocity, vB).x; float vorticity = R - L - T + B; gl_FragColor = vec4(vorticity, 0.0, 0.0, 1.0); }");
-let clearShader = compileShader(
+let vorticityShader = compileShader(gl.FRAGMENT_SHADER, "precision highp float; precision mediump sampler2D; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform sampler2D uVelocity; uniform sampler2D uCurl; uniform float curl; uniform float dt; void main () { float L = texture2D(uCurl, vL).x; float R = texture2D(uCurl, vR).x; float T = texture2D(uCurl, vT).y; float B = texture2D(uCurl, vB).y; float C = texture2D(uCurl, vUv).x; vec2 force = vec2(abs(T) - abs(B), abs(R) - abs(L)); force *= 1.0 / length(force + 0.00001) * curl * C; vec2 vel = texture2D(uVelocity, vUv).xy; gl_FragColor = vec4(vel + force * dt, 0.0, 1.0); }");
-  gl.FRAGMENT_SHADER,
+let pressureShader = compileShader(gl.FRAGMENT_SHADER, "precision highp float; precision mediump sampler2D; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform sampler2D uPressure; uniform sampler2D uDivergence; void main () { float L = texture2D(uPressure, vL).x; float R = texture2D(uPressure, vR).x; float T = texture2D(uPressure, vT).x; float B = texture2D(uPressure, vB).x; float C = texture2D(uPressure, vUv).x; float divergence = texture2D(uDivergence, vUv).x; float pressure = (L + R + B + T - divergence) * 0.25; gl_FragColor = vec4(pressure, 0.0, 0.0, 1.0); }");
-  "precision highp float; precision mediump sampler2D; varying vec2 vUv; uniform sampler2D uTexture; uniform float value; void main () {     gl_FragColor = value * texture2D(uTexture, vUv); }"
+let gradientSubtractShader = compileShader(gl.FRAGMENT_SHADER, "precision highp float; precision mediump sampler2D; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform sampler2D uPressure; uniform sampler2D uVelocity; void main () { float L = texture2D(uPressure, vL).x; float R = texture2D(uPressure, vR).x; float T = texture2D(uPressure, vT).x; float B = texture2D(uPressure, vB).x; vec2 velocity = texture2D(uVelocity, vUv).xy; velocity.xy -= vec2(R - L, T - B); gl_FragColor = vec4(velocity, 0.0, 1.0); }");
-);
-
-let displayShader = compileShader(
-  gl.FRAGMENT_SHADER,
-  "precision highp float; precision mediump sampler2D; varying vec2 vUv; uniform sampler2D uTexture; void main () {     gl_FragColor = texture2D(uTexture, vUv); }"
-);
-
-let splatShader = compileShader(
-  gl.FRAGMENT_SHADER,
-  "precision highp float; precision mediump sampler2D; varying vec2 vUv; uniform sampler2D uTarget; uniform float aspectRatio; uniform vec3 color; uniform vec2 point; uniform float radius; void main () {     vec2 p = vUv - point.xy;     p.x *= aspectRatio;     vec3 splat = exp(-dot(p, p) / radius) * color;     vec3 base = texture2D(uTarget, vUv).xyz;     gl_FragColor = vec4(base + splat, 1.0); }"
-);
-
-let advectionManualFilteringShader = compileShader(
-  gl.FRAGMENT_SHADER,
-  "precision highp float; precision mediump sampler2D; varying vec2 vUv; uniform sampler2D uVelocity; uniform sampler2D uSource; uniform vec2 texelSize; uniform float dt; uniform float dissipation; vec4 bilerp (in sampler2D sam, in vec2 p) {     vec4 st;     st.xy = floor(p - 0.5) + 0.5;     st.zw = st.xy + 1.0;     vec4 uv = st * texelSize.xyxy;     vec4 a = texture2D(sam, uv.xy);     vec4 b = texture2D(sam, uv.zy);     vec4 c = texture2D(sam, uv.xw);     vec4 d = texture2D(sam, uv.zw);     vec2 f = p - st.xy;     return mix(mix(a, b, f.x), mix(c, d, f.x), f.y); } void main () {     vec2 coord = gl_FragCoord.xy - dt * texture2D(uVelocity, vUv).xy;     gl_FragColor = dissipation * bilerp(uSource, coord);     gl_FragColor.a = 1.0; }"
-);
-
-let advectionShader = compileShader(
-  gl.FRAGMENT_SHADER,
-  "precision highp float; precision mediump sampler2D; varying vec2 vUv; uniform sampler2D uVelocity; uniform sampler2D uSource; uniform vec2 texelSize; uniform float dt; uniform float dissipation; void main () {     vec2 coord = vUv - dt * texture2D(uVelocity, vUv).xy * texelSize;     gl_FragColor = dissipation * texture2D(uSource, coord); }"
-);
-
-let divergenceShader = compileShader(
-  gl.FRAGMENT_SHADER,
-  "precision highp float; precision mediump sampler2D; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform sampler2D uVelocity; vec2 sampleVelocity (in vec2 uv) {     vec2 multiplier = vec2(1.0, 1.0);     if (uv.x < 0.0) { uv.x = 0.0; multiplier.x = -1.0; }     if (uv.x > 1.0) { uv.x = 1.0; multiplier.x = -1.0; }     if (uv.y < 0.0) { uv.y = 0.0; multiplier.y = -1.0; }     if (uv.y > 1.0) { uv.y = 1.0; multiplier.y = -1.0; }     return multiplier * texture2D(uVelocity, uv).xy; } void main () {     float L = sampleVelocity(vL).x;     float R = sampleVelocity(vR).x;     float T = sampleVelocity(vT).y;     float B = sampleVelocity(vB).y;     float div = 0.5 * (R - L + T - B);     gl_FragColor = vec4(div, 0.0, 0.0, 1.0); }"
-);
-
-let curlShader = compileShader(
-  gl.FRAGMENT_SHADER,
-  "precision highp float; precision mediump sampler2D; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform sampler2D uVelocity; void main () {     float L = texture2D(uVelocity, vL).y;     float R = texture2D(uVelocity, vR).y;     float T = texture2D(uVelocity, vT).x;     float B = texture2D(uVelocity, vB).x;     float vorticity = R - L - T + B;     gl_FragColor = vec4(vorticity, 0.0, 0.0, 1.0); }"
-);
-
-let vorticityShader = compileShader(
-  gl.FRAGMENT_SHADER,
-  "precision highp float; precision mediump sampler2D; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform sampler2D uVelocity; uniform sampler2D uCurl; uniform float curl; uniform float dt; void main () {     float L = texture2D(uCurl, vL).y;     float R = texture2D(uCurl, vR).y;     float T = texture2D(uCurl, vT).x;     float B = texture2D(uCurl, vB).x;     float C = texture2D(uCurl, vUv).x;     vec2 force = vec2(abs(T) - abs(B), abs(R) - abs(L));     force *= 1.0 / length(force + 0.00001) * curl * C;     vec2 vel = texture2D(uVelocity, vUv).xy;     gl_FragColor = vec4(vel + force * dt, 0.0, 1.0); }"
-);
-
-let pressureShader = compileShader(
-  gl.FRAGMENT_SHADER,
-  "precision highp float; precision mediump sampler2D; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform sampler2D uPressure; uniform sampler2D uDivergence; vec2 boundary (in vec2 uv) {     uv = min(max(uv, 0.0), 1.0);     return uv; } void main () {     float L = texture2D(uPressure, boundary(vL)).x;     float R = texture2D(uPressure, boundary(vR)).x;     float T = texture2D(uPressure, boundary(vT)).x;     float B = texture2D(uPressure, boundary(vB)).x;     float C = texture2D(uPressure, vUv).x;     float divergence = texture2D(uDivergence, vUv).x;     float pressure = (L + R + B + T - divergence) * 0.25;     gl_FragColor = vec4(pressure, 0.0, 0.0, 1.0); }"
-);
-
-let gradientSubtractShader = compileShader(
-  gl.FRAGMENT_SHADER,
-  "precision highp float; precision mediump sampler2D; varying vec2 vUv; varying vec2 vL; varying vec2 vR; varying vec2 vT; varying vec2 vB; uniform sampler2D uPressure; uniform sampler2D uVelocity; vec2 boundary (in vec2 uv) {     uv = min(max(uv, 0.0), 1.0);     return uv; } void main () {     float L = texture2D(uPressure, boundary(vL)).x;     float R = texture2D(uPressure, boundary(vR)).x;     float T = texture2D(uPressure, boundary(vT)).x;     float B = texture2D(uPressure, boundary(vB)).x;     vec2 velocity = texture2D(uVelocity, vUv).xy;     velocity.xy -= vec2(R - L, T - B);     gl_FragColor = vec4(velocity, 0.0, 1.0); }"
-);
 
 // ===== FRAMEBUFFERS =====
-let textureWidth, textureHeight;
+let textureWidth, textureHeight, density, velocity, divergence, curl, pressure;
-let density, velocity, divergence, curl, pressure;
-
 function initFramebuffers() {
-  textureWidth = gl.drawingBufferWidth >> config.TEXTURE_DOWNSAMPLE;
+    textureWidth = gl.drawingBufferWidth >> config.TEXTURE_DOWNSAMPLE;
-  textureHeight = gl.drawingBufferHeight >> config.TEXTURE_DOWNSAMPLE;
+    textureHeight = gl.drawingBufferHeight >> config.TEXTURE_DOWNSAMPLE;
-  let iFormat = ext.internalFormat;
+    let iFormat = ext.internalFormat, iFormatRG = ext.internalFormatRG, formatRG = ext.formatRG, texType = ext.texType;
-  let iFormatRG = ext.internalFormatRG;
+    density = createDoubleFBO(0, textureWidth, textureHeight, iFormat, gl.RGBA, texType, support_linear_float ? gl.LINEAR : gl.NEAREST);
-  let formatRG = ext.formatRG;
+    velocity = createDoubleFBO(2, textureWidth, textureHeight, iFormatRG, formatRG, texType, support_linear_float ? gl.LINEAR : gl.NEAREST);
-  let texType = ext.texType;
+    divergence = createFBO(4, textureWidth, textureHeight, iFormatRG, formatRG, texType, gl.NEAREST);
-  density = createDoubleFBO(
+    curl = createFBO(5, textureWidth, textureHeight, iFormatRG, formatRG, texType, gl.NEAREST);
-    0,
+    pressure = createDoubleFBO(6, textureWidth, textureHeight, iFormatRG, formatRG, texType, gl.NEAREST);
-    textureWidth,
-    textureHeight,
-    iFormat,
-    gl.RGBA,
-    texType,
-    support_linear_float ? gl.LINEAR : gl.NEAREST
-  );
-  velocity = createDoubleFBO(
-    2,
-    textureWidth,
-    textureHeight,
-    iFormatRG,
-    formatRG,
-    texType,
-    support_linear_float ? gl.LINEAR : gl.NEAREST
-  );
-  divergence = createFBO(
-    4,
-    textureWidth,
-    textureHeight,
-    iFormatRG,
-    formatRG,
-    texType,
-    gl.NEAREST
-  );
-  curl = createFBO(
-    5,
-    textureWidth,
-    textureHeight,
-    iFormatRG,
-    formatRG,
-    texType,
-    gl.NEAREST
-  );
-  pressure = createDoubleFBO(
-    6,
-    textureWidth,
-    textureHeight,
-    iFormatRG,
-    formatRG,
-    texType,
-    gl.NEAREST
-  );
 }
-
 function createFBO(texId, w, h, internalFormat, format, type, param) {
-  gl.activeTexture(gl.TEXTURE0 + texId);
+    gl.activeTexture(gl.TEXTURE0 + texId);
-  let texture = gl.createTexture();
+    let texture = gl.createTexture();
-  gl.bindTexture(gl.TEXTURE_2D, texture);
+    gl.bindTexture(gl.TEXTURE_2D, texture);
-  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, param);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, param);
-  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, param);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, param);
-  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-  gl.texImage2D(gl.TEXTURE_2D, 0, internalFormat, w, h, 0, format, type, null);
+    gl.texImage2D(gl.TEXTURE_2D, 0, internalFormat, w, h, 0, format, type, null);
-  let fbo = gl.createFramebuffer();
+    let fbo = gl.createFramebuffer();
-  gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
+    gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
-  gl.framebufferTexture2D(
+    gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0);
-    gl.FRAMEBUFFER,
+    gl.viewport(0, 0, w, h);
-    gl.COLOR_ATTACHMENT0,
+    gl.clear(gl.COLOR_BUFFER_BIT);
-    gl.TEXTURE_2D,
+    return [texture, fbo, texId];
-    texture,
-    0
-  );
-  gl.viewport(0, 0, w, h);
-  gl.clear(gl.COLOR_BUFFER_BIT);
-  return [texture, fbo, texId];
 }
-
 function createDoubleFBO(texId, w, h, internalFormat, format, type, param) {
-  let fbo1 = createFBO(texId, w, h, internalFormat, format, type, param);
+    let fbo1 = createFBO(texId, w, h, internalFormat, format, type, param);
-  let fbo2 = createFBO(texId + 1, w, h, internalFormat, format, type, param);
+    let fbo2 = createFBO(texId + 1, w, h, internalFormat, format, type, param);
-  return {
+    return {
-    get first() {
+        get first() { return fbo1; },
-      return fbo1;
+        get second() { return fbo2; },
-    },
+        swap: function () { let temp = fbo1; fbo1 = fbo2; fbo2 = temp; }
-    get second() {
+    };
-      return fbo2;
-    },
-    swap: function swap() {
-      let temp = fbo1;
-      fbo1 = fbo2;
-      fbo2 = temp;
-    }
-  };
 }
-
 initFramebuffers();
 
-// ===== PROGRAMS =====
+// ===== PROGRAMS & BLIT =====
 let clearProgram = new GLProgram(baseVertexShader, clearShader);
 let displayProgram = new GLProgram(baseVertexShader, displayShader);
 let splatProgram = new GLProgram(baseVertexShader, splatShader);
-let advectionProgram = new GLProgram(
+let advectionProgram = new GLProgram(baseVertexShader, advectionShader);
-  baseVertexShader,
-  support_linear_float ? advectionShader : advectionManualFilteringShader
-);
 let divergenceProgram = new GLProgram(baseVertexShader, divergenceShader);
 let curlProgram = new GLProgram(baseVertexShader, curlShader);
 let vorticityProgram = new GLProgram(baseVertexShader, vorticityShader);
 let pressureProgram = new GLProgram(baseVertexShader, pressureShader);
-let gradienSubtractProgram = new GLProgram(
+let gradienSubtractProgram = new GLProgram(baseVertexShader, gradientSubtractShader);
-  baseVertexShader,
-  gradientSubtractShader
-);
 
-// ===== BLIT =====
 let blit = (function () {
-  gl.bindBuffer(gl.ARRAY_BUFFER, gl.createBuffer());
+    gl.bindBuffer(gl.ARRAY_BUFFER, gl.createBuffer());
-  gl.bufferData(
+    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([-1, -1, -1, 1, 1, 1, 1, -1]), gl.STATIC_DRAW);
-    gl.ARRAY_BUFFER,
+    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.createBuffer());
-    new Float32Array([-1, -1, -1, 1, 1, 1, 1, -1]),
+    gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array([0, 1, 2, 0, 2, 3]), gl.STATIC_DRAW);
-    gl.STATIC_DRAW
+    gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0);
-  );
+    gl.enableVertexAttribArray(0);
-  gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.createBuffer());
+    return function (destination) {
-  gl.bufferData(
+        gl.bindFramebuffer(gl.FRAMEBUFFER, destination);
-    gl.ELEMENT_ARRAY_BUFFER,
+        gl.drawElements(gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0);
-    new Uint16Array([0, 1, 2, 0, 2, 3]),
+    };
-    gl.STATIC_DRAW
-  );
-  gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0);
-  gl.enableVertexAttribArray(0);
-  return function (destination) {
-    gl.bindFramebuffer(gl.FRAMEBUFFER, destination);
-    gl.drawElements(gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0);
-  };
 })();
 
-// ===== SPLAT =====
 function splat(x, y, dx, dy, color) {
-  splatProgram.bind();
+    splatProgram.bind();
-  gl.uniform1i(splatProgram.uniforms.uTarget, velocity.first[2]);
+    gl.uniform1i(splatProgram.uniforms.uTarget, velocity.first[2]);
-  gl.uniform1f(splatProgram.uniforms.aspectRatio, canvas.width / canvas.height);
+    gl.uniform1f(splatProgram.uniforms.aspectRatio, canvas.width / canvas.height);
-  gl.uniform2f(
+    gl.uniform2f(splatProgram.uniforms.point, x / canvas.width, 1.0 - y / canvas.height);
-    splatProgram.uniforms.point,
+    gl.uniform3f(splatProgram.uniforms.color, dx, -dy, 1.0);
-    x / canvas.width,
+    gl.uniform1f(splatProgram.uniforms.radius, config.SPLAT_RADIUS);
-    1.0 - y / canvas.height
+    blit(velocity.second[1]); velocity.swap();
-  );
+    gl.uniform1i(splatProgram.uniforms.uTarget, density.first[2]);
-  gl.uniform3f(splatProgram.uniforms.color, dx, -dy, 1.0);
+    gl.uniform3f(splatProgram.uniforms.color, color[0] * 0.3, color[1] * 0.3, color[2] * 0.3);
-  gl.uniform1f(splatProgram.uniforms.radius, config.SPLAT_RADIUS);
+    blit(density.second[1]); density.swap();
-  blit(velocity.second[1]);
-  velocity.swap();
-  gl.uniform1i(splatProgram.uniforms.uTarget, density.first[2]);
-  gl.uniform3f(
-    splatProgram.uniforms.color,
-    color[0] * 0.3,
-    color[1] * 0.3,
-    color[2] * 0.3
-  );
-  blit(density.second[1]);
-  density.swap();
 }
 
-// ===== RESIZE =====
+// ===== COLORES DE LA MARCA =====
-function resizeCanvas() {
+const brandColors = [[0.874, 0.741, 0.725], [0.729, 0.071, 0.302], [0.000, 0.247, 0.322]];
-  (canvas.width !== canvas.clientWidth ||
+let currentColor = brandColors[0], targetColor = brandColors[1], transitionProgress = 0;
-    canvas.height !== canvas.clientHeight) &&
-    ((canvas.width = canvas.clientWidth),
-    (canvas.height = canvas.clientHeight),
-    initFramebuffers());
-}
-
-// ===== COLORES DE LA MARCA CON TRANSICIÓN =====
-const brandColors = [
-  [0.874, 0.741, 0.725], // Rosa (#DFBDB9)
-  [0.729, 0.071, 0.302], // Bordo (#BA124D)
-  [0.000, 0.247, 0.322]  // Teal (#003F52)
-];
-
-let currentColor = brandColors[0];
-let targetColor = brandColors[1];
-let transitionProgress = 0;
 const transitionSpeed = 0.008;
+function lerpColor(a, b, t) { return [a[0] + (b[0] - a[0]) * t, a[1] + (b[1] - a[1]) * t, a[2] + (b[2] - a[2]) * t]; }
+let colorArr = currentColor, count = 0;
 
-function lerpColor(colorA, colorB, t) {
+// ===== EVENTOS =====
-  return [
-    colorA[0] + (colorB[0] - colorA[0]) * t,
-    colorA[1] + (colorB[1] - colorA[1]) * t,
-    colorA[2] + (colorB[2] - colorA[2]) * t
-  ];
-}
-
-let colorArr = currentColor;
-let count = 0;
-
-// ===== EVENTOS CON COLORES DE MARCA =====
 canvas.addEventListener("mousemove", function (e) {
-  console.log("Mouse moviéndose:", e.clientX, e.clientY);
-  count++;
-  if (count > 1) {
-    transitionProgress += transitionSpeed;
-    if (transitionProgress >= 1) {
-      transitionProgress = 0;
-      let currentIndex = brandColors.indexOf(currentColor);
-      let nextIndex = (currentIndex + 1) % brandColors.length;
-      currentColor = targetColor;
-      targetColor = brandColors[nextIndex];
-    }
-    colorArr = lerpColor(currentColor, targetColor, transitionProgress);
-    count = 0;
-  }
-  
-  pointers[0].down = true;
-  pointers[0].color = colorArr;
-  pointers[0].moved = pointers[0].down;
-  pointers[0].dx = (e.offsetX - pointers[0].x) * 10.0;
-  pointers[0].dy = (e.offsetY - pointers[0].y) * 10.0;
-  pointers[0].x = e.offsetX;
-  pointers[0].y = e.offsetY;
-});
-
-canvas.addEventListener(
-  "touchmove",
-  function (e) {
-    e.preventDefault();
-    let touches = e.targetTouches;
     count++;
-    if (count > 20) {
+    if (count > 1) {
-      transitionProgress += transitionSpeed;
+        transitionProgress += transitionSpeed;
-      if (transitionProgress >= 1) {
+        if (transitionProgress >= 1) {
-        transitionProgress = 0;
+            transitionProgress = 0;
-        let currentIndex = brandColors.indexOf(currentColor);
+            let currentIndex = brandColors.indexOf(currentColor);
-        let nextIndex = (currentIndex + 1) % brandColors.length;
+            currentColor = targetColor;
-        currentColor = targetColor;
+            targetColor = brandColors[(currentIndex + 1) % brandColors.length];
-        targetColor = brandColors[nextIndex];
+        }
-      }
+        colorArr = lerpColor(currentColor, targetColor, transitionProgress);
-      colorArr = lerpColor(currentColor, targetColor, transitionProgress);
+        count = 0;
-      count = 0;
     }
-    
+    pointers[0].down = true; pointers[0].color = colorArr; pointers[0].moved = true;
-    for (let i = 0, len = touches.length; i < len; i++) {
+    pointers[0].dx = (e.offsetX - pointers[0].x) * 10.0;
-      if (i >= pointers.length) pointers.push(new pointerPrototype());
+    pointers[0].dy = (e.offsetY - pointers[0].y) * 10.0;
-      pointers[i].id = touches[i].identifier;
+    pointers[0].x = e.offsetX; pointers[0].y = e.offsetY;
-      pointers[i].down = true;
+});
-      pointers[i].x = touches[i].pageX;
-      pointers[i].y = touches[i].pageY;
-      pointers[i].color = colorArr;
-      let pointer = pointers[i];
-      pointer.moved = pointer.down;
-      pointer.dx = (touches[i].pageX - pointer.x) * 10.0;
-      pointer.dy = (touches[i].pageY - pointer.y) * 10.0;
-      pointer.x = touches[i].pageX;
-      pointer.y = touches[i].pageY;
-    }
-  },
-  false
-);
 
 // ===== LOOP PRINCIPAL =====
 let lastTime = Date.now();
-
 function update() {
-  resizeCanvas();
+    if (canvas.width !== canvas.clientWidth || canvas.height !== canvas.clientHeight) {
-  let dt = Math.min((Date.now() - lastTime) / 1000, 0.016);
+        canvas.width = canvas.clientWidth; canvas.height = canvas.clientHeight;
-  lastTime = Date.now();
+        initFramebuffers();
-  gl.viewport(0, 0, textureWidth, textureHeight);
-
-  advectionProgram.bind();
-  gl.uniform2f(
-    advectionProgram.uniforms.texelSize,
-    1.0 / textureWidth,
-    1.0 / textureHeight
-  );
-  gl.uniform1i(advectionProgram.uniforms.uVelocity, velocity.first[2]);
-  gl.uniform1i(advectionProgram.uniforms.uSource, velocity.first[2]);
-  gl.uniform1f(advectionProgram.uniforms.dt, dt);
-  gl.uniform1f(
-    advectionProgram.uniforms.dissipation,
-    config.VELOCITY_DISSIPATION
-  );
-  blit(velocity.second[1]);
-  velocity.swap();
-
-  gl.uniform1i(advectionProgram.uniforms.uVelocity, velocity.first[2]);
-  gl.uniform1i(advectionProgram.uniforms.uSource, density.first[2]);
-  gl.uniform1f(
-    advectionProgram.uniforms.dissipation,
-    config.DENSITY_DISSIPATION
-  );
-  blit(density.second[1]);
-  density.swap();
-
-  for (let i = 0, len = pointers.length; i < len; i++) {
-    let pointer = pointers[i];
-    if (pointer.moved) {
-      splat(pointer.x, pointer.y, pointer.dx, pointer.dy, pointer.color);
-      pointer.moved = false;
     }
-  }
+    let dt = Math.min((Date.now() - lastTime) / 1000, 0.016);
-
+    lastTime = Date.now();
-  curlProgram.bind();
+    gl.viewport(0, 0, textureWidth, textureHeight);
-  gl.uniform2f(
+    
-    curlProgram.uniforms.texelSize,
+    advectionProgram.bind();
-    1.0 / textureWidth,
+    gl.uniform2f(advectionProgram.uniforms.texelSize, 1.0 / textureWidth, 1.0 / textureHeight);
-    1.0 / textureHeight
+    gl.uniform1i(advectionProgram.uniforms.uVelocity, velocity.first[2]);
-  );
+    gl.uniform1i(advectionProgram.uniforms.uSource, velocity.first[2]);
-  gl.uniform1i(curlProgram.uniforms.uVelocity, velocity.first[2]);
+    gl.uniform1f(advectionProgram.uniforms.dt, dt);
-  blit(curl[1]);
+    gl.uniform1f(advectionProgram.uniforms.dissipation, config.VELOCITY_DISSIPATION);
-
+    blit(velocity.second[1]); velocity.swap();
-  vorticityProgram.bind();
+    gl.uniform1i(advectionProgram.uniforms.uSource, density.first[2]);
-  gl.uniform2f(
+    gl.uniform1f(advectionProgram.uniforms.dissipation, config.DENSITY_DISSIPATION);
-    vorticityProgram.uniforms.texelSize,
+    blit(density.second[1]); density.swap();
-    1.0 / textureWidth,
+    
-    1.0 / textureHeight
+    for (let i = 0; i < pointers.length; i++) {
-  );
+        if (pointers[i].moved) { splat(pointers[i].x, pointers[i].y, pointers[i].dx, pointers[i].dy, pointers[i].color); pointers[i].moved = false; }
-  gl.uniform1i(vorticityProgram.uniforms.uVelocity, velocity.first[2]);
+    }
-  gl.uniform1i(vorticityProgram.uniforms.uCurl, curl[2]);
+    
-  gl.uniform1f(vorticityProgram.uniforms.curl, config.CURL);
+    curlProgram.bind(); gl.uniform2f(curlProgram.uniforms.texelSize, 1.0 / textureWidth, 1.0 / textureHeight);
-  gl.uniform1f(vorticityProgram.uniforms.dt, dt);
+    gl.uniform1i(curlProgram.uniforms.uVelocity, velocity.first[2]); blit(curl[1]);
-  blit(velocity.second[1]);
+    
-  velocity.swap();
+    vorticityProgram.bind(); gl.uniform2f(vorticityProgram.uniforms.texelSize, 1.0 / textureWidth, 1.0 / textureHeight);
-
+    gl.uniform1i(vorticityProgram.uniforms.uVelocity, velocity.first[2]); gl.uniform1i(vorticityProgram.uniforms.uCurl, curl[2]);
-  divergenceProgram.bind();
+    gl.uniform1f(vorticityProgram.uniforms.curl, config.CURL); gl.uniform1f(vorticityProgram.uniforms.dt, dt);
-  gl.uniform2f(
+    blit(velocity.second[1]); velocity.swap();
-    divergenceProgram.uniforms.texelSize,
+    
-    1.0 / textureWidth,
+    divergenceProgram.bind(); gl.uniform2f(divergenceProgram.uniforms.texelSize, 1.0 / textureWidth, 1.0 / textureHeight);
-    1.0 / textureHeight
+    gl.uniform1i(divergenceProgram.uniforms.uVelocity, velocity.first[2]); blit(divergence[1]);
-  );
+    
-  gl.uniform1i(divergenceProgram.uniforms.uVelocity, velocity.first[2]);
+    clearProgram.bind();
-  blit(divergence[1]);
+    gl.activeTexture(gl.TEXTURE0 + pressure.first[2]); gl.bindTexture(gl.TEXTURE_2D, pressure.first[0]);
-
+    gl.uniform1i(clearProgram.uniforms.uTexture, pressure.first[2]); gl.uniform1f(clearProgram.uniforms.value, config.PRESSURE_DISSIPATION);
-  clearProgram.bind();
+    blit(pressure.second[1]); pressure.swap();
-  let pressureTexId = pressure.first[2];
+    
-  gl.activeTexture(gl.TEXTURE0 + pressureTexId);
+    pressureProgram.bind(); gl.uniform2f(pressureProgram.uniforms.texelSize, 1.0 / textureWidth, 1.0 / textureHeight);
-  gl.bindTexture(gl.TEXTURE_2D, pressure.first[0]);
+    gl.uniform1i(pressureProgram.uniforms.uDivergence, divergence[2]);
-  gl.uniform1i(clearProgram.uniforms.uTexture, pressureTexId);
+    for (let _i = 0; _i < config.PRESSURE_ITERATIONS; _i++) {
-  gl.uniform1f(clearProgram.uniforms.value, config.PRESSURE_DISSIPATION);
+        gl.activeTexture(gl.TEXTURE0 + pressure.first[2]); gl.bindTexture(gl.TEXTURE_2D, pressure.first[0]);
-  blit(pressure.second[1]);
+        gl.uniform1i(pressureProgram.uniforms.uPressure, pressure.first[2]);
-  pressure.swap();
+        blit(pressure.second[1]); pressure.swap();
-
+    }
-  pressureProgram.bind();
+    
-  gl.uniform2f(
+    gradienSubtractProgram.bind(); gl.uniform2f(gradienSubtractProgram.uniforms.texelSize, 1.0 / textureWidth, 1.0 / textureHeight);
-    pressureProgram.uniforms.texelSize,
+    gl.uniform1i(gradienSubtractProgram.uniforms.uPressure, pressure.first[2]); gl.uniform1i(gradienSubtractProgram.uniforms.uVelocity, velocity.first[2]);
-    1.0 / textureWidth,
+    blit(velocity.second[1]); velocity.swap();
-    1.0 / textureHeight
+    
-  );
+    gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
-  gl.uniform1i(pressureProgram.uniforms.uDivergence, divergence[2]);
+    displayProgram.bind(); gl.uniform1i(displayProgram.uniforms.uTexture, density.first[2]);
-  pressureTexId = pressure.first[2];
+    blit(null);
-  gl.activeTexture(gl.TEXTURE0 + pressureTexId);
+    requestAnimationFrame(update);
-  for (let _i = 0; _i < config.PRESSURE_ITERATIONS; _i++) {
-    gl.bindTexture(gl.TEXTURE_2D, pressure.first[0]);
-    gl.uniform1i(pressureProgram.uniforms.uPressure, pressureTexId);
-    blit(pressure.second[1]);
-    pressure.swap();
-  }
-
-  gradienSubtractProgram.bind();
-  gl.uniform2f(
-    gradienSubtractProgram.uniforms.texelSize,
-    1.0 / textureWidth,
-    1.0 / textureHeight
-  );
-  gl.uniform1i(gradienSubtractProgram.uniforms.uPressure, pressure.first[2]);
-  gl.uniform1i(gradienSubtractProgram.uniforms.uVelocity, velocity.first[2]);
-  blit(velocity.second[1]);
-  velocity.swap();
-
-  gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
-  displayProgram.bind();
-  gl.uniform1i(displayProgram.uniforms.uTexture, density.first[2]);
-  blit(null);
-
-  requestAnimationFrame(update);
 }
-
 update();
 
-// ===== REDIMENSIONAR AL CAMBIAR TAMAÑO DE VENTANA =====
 window.addEventListener("resize", function() {
-  canvas.width = window.innerWidth;
+    canvas.width = window.innerWidth; canvas.height = window.innerHeight;
-  canvas.height = window.innerHeight;
+    initFramebuffers();
-  initFramebuffers();
 });

index.html

@@ -666,7 +666,7 @@
     </div>
   </footer>
 
-  <!-- ===== SCRIPTS ===== -->
+  <!-- ===== SCRIPTS ==== -->
   <script src="scripts.js"></script>
   <script src="fluid.js"></script>
 

styles.css

@@ -34,21 +34,59 @@ body {
 
 /* ===== CANVAS FLUIDO ===== */
 #fluidCanvas {
-  display: block;
+    display: block;
-  width: 100%;
+    width: 100vw;
-  height: 100vh;
+    height: 100vh;
-  position: fixed;
+    position: fixed;
-  top: 0;
+    top: 0;
-  left: 0;
+    left: 0;
-  z-index: 0;
+    z-index: 0;
-  pointer-events: auto;
+    pointer-events: none; /* ✅ No interfiere con clicks */
-  background: var(--oscuro);
+    background: transparent;
 }
 
-/* Asegurar que el contenido esté por encima */
+/* ===== CONTENIDO SOBRE EL CANVAS ===== */
 .hero, section {
-  position: relative;
+    position: relative;
-  z-index: 1;
+    z-index: 1;
+    background: transparent; /* ✅ Transparente para ver el humo */
+}
+
+/* Si necesitas fondos en secciones específicas, usa semi-transparente */
+.hero {
+    background: rgba(17, 9, 22, 0.3); /* Semi-transparente */
+}
+
+section {
+    background: rgba(17, 9, 22, 0.5); /* Semi-transparente */
+}
+
+/* Header siempre por encima */
+header {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    z-index: 50;
+    background: linear-gradient(180deg, rgba(17,9,22,.9) 0%, rgba(17,9,22,0) 100%);
+    pointer-events: auto; /* ✅ Header sí recibe clicks */
+}
+
+/* Botones y elementos interactivos siempre por encima */
+.btn, .menu-btn, .plan-cta, .tab, .acc-head, .faq-head, 
+.filter-tag, input, textarea, button, a {
+    position: relative;
+    z-index: 2;
+    pointer-events: auto; /* ✅ Todos los elementos interactivos funcionan */
+}
+
+/* Overlay y Sheet por encima de todo */
+.overlay {
+    z-index: 90;
+}
+
+.sheet {
+    z-index: 100;
 }
 
 /* ===== HEADER ===== */