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Last active Aug 11, 2019

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Particles Flowing with WebGL and regl - II
license: mit
height: 720
border: no

Particles Flowing with WebGL and regl - II

Example of having particles flow with WebGL and regl. The main idea is to use update state with shaders by writing to framebuffers. In this example, the particles are affected by a directional "flow" field (possibly similar to what may be used for a wind map).

Big thanks to Mikola Lysenko, the creator of regl, for explaining the concept of writing to framebuffers from shaders to me after OpenVis Conf 2017!

Note: it appears that currently framebuffers aren't supported by iOS :( If you have any ideas on how to accomplish this on a way that works on phones, I'd love to hear it!

This block was developed with blockup.

function createInitialParticleBuffer(e){var t=regl.texture({data:e,shape:[sqrtNumParticles,sqrtNumParticles,4],type:"float"});return regl.framebuffer({color:t,depth:!1,stencil:!1})}function cycleParticleStates(){var e=prevParticleState;prevParticleState=currParticleState,currParticleState=nextParticleState,nextParticleState=e}function normalize(e){var t=Math.sqrt(Math.pow(e[0],2)+Math.pow(e[1],2));return e[0]/=t,e[1]/=t,e}function makeGridMesh(e,t){var n=d3.scaleLinear().domain([0,e-1]).range([-1,1]),r=d3.scaleLinear().domain([0,t-1]).range([1,-1]),i=d3.range(numFlowData).map(function(t){var i=t%e,a=Math.floor(t/e);return[n(i),r(a)]}),a=function(t,n){return t+n*e},o=[];return i.forEach(function(n,r){var i=r%e,l=Math.floor(r/e);if(i+1<e&&l+1<t){var c=[r,r+1,a(i,l+1)];o.push(c)}if(i+1<e&&l-1>=0){var s=[r,r+1,a(i+1,l-1)];o.push(s)}}),{positions:i,cells:o}}function generateFlowData(){d3.range(numFlowData).forEach(function(e){flowData[e]=normalize([2*Math.random()-1,2*Math.random()-1,3*Math.random()])})}var width=window.innerWidth,height=window.innerHeight,pointWidth=3,animationTickLimit=-1;animationTickLimit>=0&&console.log("Limiting to "+animationTickLimit+" ticks");var ticksPerFlow=130;console.log("Changing flow buffer every "+ticksPerFlow+" ticks");var sqrtNumParticles=256,numParticles=sqrtNumParticles*sqrtNumParticles;console.log("Using "+numParticles+" particles");for(var regl=createREGL({extensions:"OES_texture_float"}),initialParticleState=new Float32Array(4*numParticles),i=0;i<numParticles;++i)initialParticleState[4*i]=2*Math.random()-1,initialParticleState[4*i+1]=2*Math.random()-1,initialParticleState[4*i+2]=50+300*Math.random();for(var prevParticleState=createInitialParticleBuffer(initialParticleState),currParticleState=createInitialParticleBuffer(initialParticleState),nextParticleState=createInitialParticleBuffer(initialParticleState),particleTextureIndex=[],i$1=0;i$1<sqrtNumParticles;i$1++)for(var j=0;j<sqrtNumParticles;j++)particleTextureIndex.push(i$1/sqrtNumParticles,j/sqrtNumParticles);var sqrtFlowDataLength=4,numFlowData=sqrtFlowDataLength*sqrtFlowDataLength,flowData=[],gridMesh=makeGridMesh(sqrtFlowDataLength,sqrtFlowDataLength);generateFlowData();var upscaleAmount=16*sqrtFlowDataLength,flowBuffer=regl.framebuffer({color:regl.texture({data:new Float32Array(upscaleAmount*upscaleAmount*4),shape:[upscaleAmount,upscaleAmount,4],type:"float"}),depth:!1,stencil:!1}),generateFlowBuffer=regl({framebuffer:flowBuffer,vert:"\n precision mediump float;\n\n attribute vec2 position;\n attribute vec3 flowData;\n\n varying vec3 flow;\n\n void main() {\n flow = flowData;\n gl_Position = vec4(position, 0, 1);\n }",frag:"\n precision mediump float;\n\n varying vec3 flow;\n\n void main() {\n gl_FragColor = vec4(flow, 1);\n }",attributes:{position:gridMesh.positions,flowData:function(){return flowData}},elements:gridMesh.cells}),drawFlowBuffer=regl({vert:"\n\t// set the precision of floating point numbers\n precision mediump float;\n\n // vertex of the triangle\n attribute vec2 vertex;\n\n // index into the texture state\n varying vec2 flowIndex;\n\n void main() {\n \t// map bottom left -1,-1 (normalized device coords) to 0,0 (particle texture index)\n \t// and 1,1 (ndc) to 1,1 (texture)\n \tflowIndex = 0.5 * (1.0 + vertex);\n\n \tgl_Position = vec4(vertex, 0, 1);\n }\n\t",frag:"\n // set the precision of floating point numbers\n precision mediump float;\n\n uniform sampler2D flowBuffer;\n\n // index into the texture state\n varying vec2 flowIndex;\n\n void main() {\n vec3 flow = texture2D(flowBuffer, flowIndex).xyz;\n gl_FragColor = vec4(flow, 1);\n }\n ",attributes:{vertex:[-4,0,4,4,4,-4]},uniforms:{flowBuffer:flowBuffer},count:3}),updateParticles=regl({framebuffer:function(){return nextParticleState},vert:"\n\t// set the precision of floating point numbers\n precision mediump float;\n\n // vertex of the triangle\n attribute vec2 vertex;\n\n // index into the texture state\n varying vec2 particleTextureIndex;\n\tuniform sampler2D flowBuffer;\n\n void main() {\n \t// map bottom left -1,-1 (normalized device coords) to 0,0 (particle texture index)\n \t// and 1,1 (ndc) to 1,1 (texture)\n \tparticleTextureIndex = 0.5 * (1.0 + vertex);\n\n \tgl_Position = vec4(vertex, 0, 1);\n }\n\t",frag:"\n // set the precision of floating point numbers\n precision mediump float;\n\n // states to read from to get velocity\n uniform sampler2D currParticleState;\n uniform sampler2D prevParticleState;\n\n uniform sampler2D flowBuffer;\n uniform float tick;\n\n // index into the texture state\n varying vec2 particleTextureIndex;\n\n // seemingly standard 1-liner random function\n // http://stackoverflow.com/questions/4200224/random-noise-functions-for-glsl\n float rand(vec2 co){\n return fract(sin(dot(co.xy, vec2(12.9898, 78.233))) * 43758.5453);\n }\n\n void main() {\n vec3 particle = texture2D(currParticleState, particleTextureIndex).xyz;\n vec2 currPosition = particle.xy;\n float tickLifespan = particle[2];\n\n vec3 prevParticle = texture2D(prevParticleState, particleTextureIndex).xyz;\n vec2 prevPosition = prevParticle.xy;\n float prevTickLifespan = prevParticle[2];\n\n vec2 position;\n\n // respawn\n if (tickLifespan <= 0.0) {\n tickLifespan = 100.0 * rand(tick * particleTextureIndex) + 1.0;\n position = 2.0 * vec2(rand(tick * position), rand(tick * tickLifespan * position)) - 1.0;\n\n // update current position\n } else {\n\n // find flow based on current position\n vec2 flowIndex = 0.5 * (currPosition + 1.0);\n vec3 flow = texture2D(flowBuffer, flowIndex).xyz;\n float flowMagnitude = flow[2];\n\n vec2 velocity;\n\n // use velocity unless just respawned\n if (tickLifespan != prevTickLifespan - 1.0) {\n velocity = vec2(0.0);\n } else {\n velocity = currPosition - prevPosition;\n }\n\n vec2 random = 0.5 - vec2(rand(currPosition), rand(10.0 * currPosition));\n // random = vec2(0.0, 0.0);\n\n position = currPosition +\n (0.96 * velocity) +\n (0.001 * random) +\n (flow.xy * (flowMagnitude * 0.002));\n }\n\n // we store the new position as the color in this frame buffer\n // reduce the tick lifespan by 1\n gl_FragColor = vec4(position, tickLifespan - 1.0, 1);\n }\n ",attributes:{vertex:[-4,0,4,4,4,-4]},uniforms:{currParticleState:function(){return currParticleState},prevParticleState:function(){return prevParticleState},flowBuffer:flowBuffer,tick:function(e){var t=e.tick;return t}},count:3}),drawParticles=regl({vert:"\n\t// set the precision of floating point numbers\n precision mediump float;\n\n\tattribute vec2 particleTextureIndex;\n\tuniform sampler2D currParticleState;\n\tuniform sampler2D prevParticleState;\n\tuniform sampler2D flowBuffer;\n\n // variables to send to the fragment shader\n varying vec3 fragColor;\n\n // values that are the same for all vertices\n uniform float pointWidth;\n\n // get color based on particle speed\n vec3 getColor(vec3 currParticle, vec3 prevParticle) {\n \tvec2 currPosition = currParticle.xy;\n\t\tfloat tickLifespan = currParticle[2];\n\t\tvec2 prevPosition = prevParticle.xy;\n\t\tfloat prevTickLifespan = prevParticle[2];\n\n\t\tvec2 velocity;\n\n \t// use velocity unless just respawned\n\t\tif (tickLifespan != prevTickLifespan - 1.0) {\n\t\t\tvelocity = vec2(0.0);\n\t\t} else {\n\t\t\tvelocity = currPosition - prevPosition;\n\t\t}\n\n // color based on the speed (faster particles are brighter)\n\t\tfloat speed = sqrt(velocity[0] * velocity[0] + velocity[1] * velocity[1]);\n\n // color scale going from color0 -> color1 -> color2 -> color3\n vec3 color0 = vec3(0.0, 0.0, 0.2);\n vec3 color1 = vec3(0.0, 0.0, 0.35);\n vec3 color2 = vec3(0.8, 0.3, 0.4);\n vec3 color3 = vec3(1.0, 0.9, 0.6);\n\n float break0 = 0.0;\n float break1 = 0.001;\n float break2 = 0.027;\n float break3 = 0.04;\n\n if (speed < break1) {\n float t = (speed - break0) / break1;\n return mix(color0, color1, t);\n } else if (speed < break2) {\n float t = (speed - break1) / break2;\n // float t = (speed - 0.001) / 0.03;\n return mix(color1, color2, t);\n } else {\n float t = (speed - break2) / break3;\n return mix(color2, color3, min(1.0, t));\n }\n }\n\n\tvoid main() {\n\t\t// read in position from the state texture\n\t\tvec3 currParticle = texture2D(currParticleState, particleTextureIndex).xyz;\n\t\tvec2 currPosition = currParticle.xy;\n\n\t\tvec3 prevParticle = texture2D(prevParticleState, particleTextureIndex).xyz;\n\n\t\t// copy color over to fragment shader\n\t\tfragColor = getColor(currParticle, prevParticle);\n\n\t\t// scale to normalized device coordinates\n\t\t// gl_Position is a special variable that holds the position of a vertex\n gl_Position = vec4(currPosition, 0.0, 1.0);\n\n\t\t// update the size of a particles based on the prop pointWidth\n\t\tgl_PointSize = pointWidth;\n\t}\n\t",frag:"\n // set the precision of floating point numbers\n precision mediump float;\n\n // this value is populated by the vertex shader\n varying vec3 fragColor;\n\n void main() {\n // gl_FragColor is a special variable that holds the color of a pixel\n gl_FragColor = vec4(fragColor, 1);\n }\n ",attributes:{particleTextureIndex:particleTextureIndex},uniforms:{currParticleState:function(){return currParticleState},prevParticleState:function(){return prevParticleState},pointWidth:pointWidth,flowBuffer:flowBuffer},count:numParticles,primitive:"points",depth:{enable:!1,mask:!1}}),frameLoop=regl.frame(function(e){var t=e.tick;regl.clear({color:[0,0,0,1],depth:1,stencil:0}),1!==t&&t%ticksPerFlow!==0||(generateFlowData(),generateFlowBuffer()),drawParticles(),updateParticles(),cycleParticleStates(),t===animationTickLimit&&(console.log("Hit tick "+t+", canceling animation loop"),frameLoop.cancel())});
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width = window.innerWidth;\nconst height = window.innerHeight;\nconst pointWidth = 3;\n\nconst animationTickLimit = -1; // -1 disables\nif (animationTickLimit >= 0) {\n  console.log(`Limiting to ${animationTickLimit} ticks`);\n}\n\nconst ticksPerFlow = 130;\nconsole.log(`Changing flow buffer every ${ticksPerFlow} ticks`);\n\nconst sqrtNumParticles = 256;\nconst numParticles = sqrtNumParticles * sqrtNumParticles;\nconsole.log(`Using ${numParticles} particles`);\n\n// initialize regl\nconst regl = createREGL({\n\t// need this to use the textures as states\n  extensions: 'OES_texture_float',\n});\n\n\n// initial particles state and texture for buffer\n// multiply by 4 for R G B A\nconst initialParticleState = new Float32Array(numParticles * 4);\nfor (let i = 0; i < numParticles; ++i) {\n\t// store x then y then tick lifespan and 1 empty spot\n\tinitialParticleState[i * 4] = 2 * Math.random() - 1; // x position\n\tinitialParticleState[i * 4 + 1] = 2 * Math.random() - 1; // y position\n\tinitialParticleState[i * 4 + 2] = 50 + 300 * Math.random(); // tick lifespan position\n}\n\n// create a regl framebuffer holding the initial particle state\nfunction createInitialParticleBuffer(initialParticleState) {\n\t// create a texture where R holds particle X and G holds particle Y position\n\tconst initialTexture = regl.texture({\n\t  data: initialParticleState,\n\t  shape: [sqrtNumParticles, sqrtNumParticles, 4],\n\t  type: 'float'\n\t});\n\n\t// create a frame buffer using the state as the colored texture\n\treturn regl.framebuffer({\n\t\tcolor: initialTexture,\n\t\tdepth: false,\n\t\tstencil: false,\n\t});\n}\n\n// initialize particle states\nlet prevParticleState = createInitialParticleBuffer(initialParticleState);\nlet currParticleState = createInitialParticleBuffer(initialParticleState);\nlet nextParticleState = createInitialParticleBuffer(initialParticleState);\n\n// cycle which buffer is being pointed to by the state variables\nfunction cycleParticleStates() {\n\tconst tmp = prevParticleState;\n\tprevParticleState = currParticleState;\n\tcurrParticleState = nextParticleState;\n\tnextParticleState = tmp;\n}\n\n// create array of indices into the particle texture for each particle\nconst particleTextureIndex = [];\nfor (let i = 0; i < sqrtNumParticles; i++) {\n\tfor (let j = 0; j < sqrtNumParticles; j++) {\n\t\tparticleTextureIndex.push(i / sqrtNumParticles, j / sqrtNumParticles);\n\t}\n}\n\n// helper to normalize a vector of length 2 so it has magnitude 1 (mutates)\nfunction normalize(vector) {\n\tconst magnitude = Math.sqrt(Math.pow(vector[0], 2) + Math.pow(vector[1], 2));\n\tvector[0] /= magnitude;\n\tvector[1] /= magnitude;\n\treturn vector;\n}\n\n// create the flow map\nconst sqrtFlowDataLength = 4;\nconst numFlowData = sqrtFlowDataLength * sqrtFlowDataLength;\nconst flowData = [];\n\n// generate a mesh for a grid\nfunction makeGridMesh(numCols, numRows) {\n\n  // helper scales to map to normalized device coordinates from columns for simplicity\n  const colScale = d3.scaleLinear().domain([0, numCols - 1]).range([-1, 1]);\n  const rowScale = d3.scaleLinear().domain([0, numRows - 1]).range([1, -1]);\n\n  // at this point, we are going to create a grid mesh so we can interpolate\n  // between the values of our flow so they smoothly merge into one another.\n  // if you uncomment drawFlowBuffer() in the regl.frame code way below\n  // you can see what the flow buffer looks like.\n\n  // create vertices for each flow data point\n  const vertices = d3.range(numFlowData).map((i) => {\n    const col = i % numCols;\n    const row = Math.floor(i / numCols);\n\n    return [colScale(col), rowScale(row)];\n  });\n\n  // helper to find an index in the flat array based on row an doclumn\n  const indexAtColRow = (col, row) => col + (row * numCols);\n\n  // create the faces for the mesh (two triangles form a grid cell)\n  const faces = [];\n  vertices.forEach((vertex, i) => {\n    const col = i % numCols;\n    const row = Math.floor(i / numCols);\n\n    if (col + 1 < numCols && row + 1 < numRows) {\n      const topLeftTriangle = [i, i + 1, indexAtColRow(col, row + 1)];\n      faces.push(topLeftTriangle);\n    }\n\n    if (col + 1 < numCols && row - 1 >= 0) {\n      const bottomLeftTriangle = [i, i + 1, indexAtColRow(col + 1, row - 1)];\n      faces.push(bottomLeftTriangle);\n    }\n  });\n\n  return { positions: vertices, cells: faces };\n}\nconst gridMesh = makeGridMesh(sqrtFlowDataLength, sqrtFlowDataLength);\n\n// generate a new flow map by updating values in flowData\nfunction generateFlowData() {\n\td3.range(numFlowData).forEach((i) => {\n\t  flowData[i] = normalize([\n      Math.random() * 2 - 1, // column\n      Math.random() * 2 - 1, // row\n      3 * Math.random(), // magnitude\n    ]);\n\t});\n}\n\n// generate the initial flow mesh\ngenerateFlowData();\n\n// how high res we want the smoothed flow map to look\n// turn on drawFlowBuffer() in regl.frame to see the difference\nconst upscaleAmount = sqrtFlowDataLength * 16;\n\nconst flowBuffer = regl.framebuffer({\n\tcolor: regl.texture({\n    // initialize to empty values\n\t\tdata: new Float32Array(upscaleAmount * upscaleAmount * 4),\n\t\tshape: [upscaleAmount, upscaleAmount, 4],\n\t\ttype: 'float',\n\t}),\n\tdepth: false,\n\tstencil: false,\n});\n\n\n// regl command to populate the flowBuffer with actual values based on our data\n// uses the grid mesh to interpolate the flow values at each point in the grid\nconst generateFlowBuffer = regl({\n\tframebuffer: flowBuffer,\n  vert: `\n  precision mediump float;\n\n  attribute vec2 position;\n  attribute vec3 flowData;\n\n  varying vec3 flow;\n\n  void main() {\n    flow = flowData;\n    gl_Position = vec4(position, 0, 1);\n  }`,\n\n  frag: `\n  precision mediump float;\n\n  varying vec3 flow;\n\n  void main() {\n    gl_FragColor = vec4(flow, 1);\n  }`,\n\n  // this converts the vertices of the mesh into the position attribute\n  attributes: {\n    position: gridMesh.positions,\n    flowData: () => flowData,\n  },\n\n  elements: gridMesh.cells,\n})\n\n\nconst drawFlowBuffer = regl({\n\tvert: `\n\t// set the precision of floating point numbers\n  precision mediump float;\n\n  // vertex of the triangle\n  attribute vec2 vertex;\n\n  // index into the texture state\n  varying vec2 flowIndex;\n\n  void main() {\n  \t// map bottom left -1,-1 (normalized device coords) to 0,0 (particle texture index)\n  \t// and 1,1 (ndc) to 1,1 (texture)\n  \tflowIndex = 0.5 * (1.0 + vertex);\n\n  \tgl_Position = vec4(vertex, 0, 1);\n  }\n\t`,\n\n  frag: `\n  // set the precision of floating point numbers\n  precision mediump float;\n\n  uniform sampler2D flowBuffer;\n\n  // index into the texture state\n  varying vec2 flowIndex;\n\n  void main() {\n    vec3 flow = texture2D(flowBuffer, flowIndex).xyz;\n    gl_FragColor = vec4(flow, 1);\n  }\n  `,\n\n\tattributes: {\n\t\t// a triangle big enough to fill the screen\n    vertex: [\n      -4, 0,\n      4, 4,\n      4, -4\n    ]\n  },\n\n  // pass in previous states to work from\n  uniforms: {\n    flowBuffer,\n  },\n\n  // it's a triangle - 3 vertices\n  count: 3,\n});\n\n// regl command that updates particles state based on previous two\nconst updateParticles = regl({\n\t// write to a framebuffer instead of to the screen\n  framebuffer: () => nextParticleState,\n  // ^^^^^ important stuff.  ------------------------------------------\n\n\tvert: `\n\t// set the precision of floating point numbers\n  precision mediump float;\n\n  // vertex of the triangle\n  attribute vec2 vertex;\n\n  // index into the texture state\n  varying vec2 particleTextureIndex;\n\tuniform sampler2D flowBuffer;\n\n  void main() {\n  \t// map bottom left -1,-1 (normalized device coords) to 0,0 (particle texture index)\n  \t// and 1,1 (ndc) to 1,1 (texture)\n  \tparticleTextureIndex = 0.5 * (1.0 + vertex);\n\n  \tgl_Position = vec4(vertex, 0, 1);\n  }\n\t`,\n\n  // since we are writing to a framebuffer, all our data needs to be encoded\n  // as the rgb value, hence why the frag shader is where all the work happens.\n  frag: `\n  // set the precision of floating point numbers\n  precision mediump float;\n\n  // states to read from to get velocity\n  uniform sampler2D currParticleState;\n  uniform sampler2D prevParticleState;\n\n  uniform sampler2D flowBuffer;\n  uniform float tick;\n\n  // index into the texture state\n  varying vec2 particleTextureIndex;\n\n  // seemingly standard 1-liner random function\n  // http://stackoverflow.com/questions/4200224/random-noise-functions-for-glsl\n  float rand(vec2 co){\n    return fract(sin(dot(co.xy, vec2(12.9898, 78.233))) * 43758.5453);\n  }\n\n  void main() {\n    vec3 particle = texture2D(currParticleState, particleTextureIndex).xyz;\n    vec2 currPosition = particle.xy;\n    float tickLifespan = particle[2];\n\n    vec3 prevParticle = texture2D(prevParticleState, particleTextureIndex).xyz;\n    vec2 prevPosition = prevParticle.xy;\n    float prevTickLifespan = prevParticle[2];\n\n    vec2 position;\n\n    // respawn\n    if (tickLifespan <= 0.0) {\n      tickLifespan = 100.0 * rand(tick * particleTextureIndex) + 1.0;\n      position = 2.0 * vec2(rand(tick * position), rand(tick * tickLifespan * position)) - 1.0;\n\n    // update current position\n    } else {\n\n      // find flow based on current position\n      vec2 flowIndex = 0.5 * (currPosition + 1.0);\n      vec3 flow = texture2D(flowBuffer, flowIndex).xyz;\n      float flowMagnitude = flow[2];\n\n      vec2 velocity;\n\n      // use velocity unless just respawned\n      if (tickLifespan != prevTickLifespan - 1.0) {\n        velocity = vec2(0.0);\n      } else {\n        velocity = currPosition - prevPosition;\n      }\n\n      vec2 random = 0.5 - vec2(rand(currPosition), rand(10.0 * currPosition));\n      // random = vec2(0.0, 0.0);\n\n      position = currPosition +\n        (0.96 * velocity) +\n        (0.001 * random) +\n        (flow.xy * (flowMagnitude * 0.002));\n    }\n\n    // we store the new position as the color in this frame buffer\n    // reduce the tick lifespan by 1\n    gl_FragColor = vec4(position, tickLifespan - 1.0, 1);\n  }\n  `,\n\n\tattributes: {\n\t\t// a triangle big enough to fill the screen\n    vertex: [\n      -4, 0,\n      4, 4,\n      4, -4\n    ]\n  },\n\n  // pass in previous states to work from\n  uniforms: {\n  \t// must use a function so it gets updated each call\n    currParticleState: () => currParticleState,\n    prevParticleState: () => prevParticleState,\n    flowBuffer,\n\n    // include tick for improving randoms\n    tick: ({ tick }) => tick,\n  },\n\n  // it's a triangle - 3 vertices\n  count: 3,\n});\n\n// regl command that draws particles at their current state\nconst drawParticles = regl({\n\tvert: `\n\t// set the precision of floating point numbers\n  precision mediump float;\n\n\tattribute vec2 particleTextureIndex;\n\tuniform sampler2D currParticleState;\n\tuniform sampler2D prevParticleState;\n\tuniform sampler2D flowBuffer;\n\n  // variables to send to the fragment shader\n  varying vec3 fragColor;\n\n  // values that are the same for all vertices\n  uniform float pointWidth;\n\n  // get color based on particle speed\n  vec3 getColor(vec3 currParticle, vec3 prevParticle) {\n  \tvec2 currPosition = currParticle.xy;\n\t\tfloat tickLifespan = currParticle[2];\n\t\tvec2 prevPosition = prevParticle.xy;\n\t\tfloat prevTickLifespan = prevParticle[2];\n\n\t\tvec2 velocity;\n\n  \t// use velocity unless just respawned\n\t\tif (tickLifespan != prevTickLifespan - 1.0) {\n\t\t\tvelocity = vec2(0.0);\n\t\t} else {\n\t\t\tvelocity = currPosition - prevPosition;\n\t\t}\n\n    // color based on the speed (faster particles are brighter)\n\t\tfloat speed = sqrt(velocity[0] * velocity[0] + velocity[1] * velocity[1]);\n\n    // color scale going from color0 -> color1 -> color2 -> color3\n    vec3 color0 = vec3(0.0, 0.0, 0.2);\n    vec3 color1 = vec3(0.0, 0.0, 0.35);\n    vec3 color2 = vec3(0.8, 0.3, 0.4);\n    vec3 color3 = vec3(1.0, 0.9, 0.6);\n\n    float break0 = 0.0;\n    float break1 = 0.001;\n    float break2 = 0.027;\n    float break3 = 0.04;\n\n    if (speed < break1) {\n      float t = (speed - break0) / break1;\n      return mix(color0, color1, t);\n    } else if (speed < break2) {\n      float t = (speed - break1) / break2;\n      // float t = (speed - 0.001) / 0.03;\n      return mix(color1, color2, t);\n    } else  {\n      float t = (speed - break2) / break3;\n      return mix(color2, color3, min(1.0, t));\n    }\n  }\n\n\tvoid main() {\n\t\t// read in position from the state texture\n\t\tvec3 currParticle = texture2D(currParticleState, particleTextureIndex).xyz;\n\t\tvec2 currPosition = currParticle.xy;\n\n\t\tvec3 prevParticle = texture2D(prevParticleState, particleTextureIndex).xyz;\n\n\t\t// copy color over to fragment shader\n\t\tfragColor = getColor(currParticle, prevParticle);\n\n\t\t// scale to normalized device coordinates\n\t\t// gl_Position is a special variable that holds the position of a vertex\n    gl_Position = vec4(currPosition, 0.0, 1.0);\n\n\t\t// update the size of a particles based on the prop pointWidth\n\t\tgl_PointSize = pointWidth;\n\t}\n\t`,\n\n  frag: `\n  // set the precision of floating point numbers\n  precision mediump float;\n\n  // this value is populated by the vertex shader\n  varying vec3 fragColor;\n\n  void main() {\n    // gl_FragColor is a special variable that holds the color of a pixel\n    gl_FragColor = vec4(fragColor, 1);\n  }\n  `,\n\n\tattributes: {\n\t\t// each of these gets mapped to a single entry for each of the points.\n\t\t// this means the vertex shader will receive just the relevant value for a given point.\n\t\tparticleTextureIndex,\n\t},\n\n\tuniforms: {\n\t\t// important to use a function here so it gets the new buffer each render\n\t\tcurrParticleState: () => currParticleState,\n\t\tprevParticleState: () => prevParticleState,\n\t\tpointWidth,\n\t\tflowBuffer,\n\t},\n\n\t// specify the number of points to draw\n\tcount: numParticles,\n\n\t// specify that each vertex is a point (not part of a mesh)\n\tprimitive: 'points',\n\n\t// we don't care about depth computations\n\tdepth: {\n\t  enable: false,\n\t  mask: false,\n\t},\n});\n\n// start the animation loop\nconst frameLoop = regl.frame(({ tick }) => {\n\t// clear the buffer\n\tregl.clear({\n\t\t// background color (black)\n\t\tcolor: [0, 0, 0, 1],\n\t\tdepth: 1,\n\t\tstencil: 0,\n\t});\n\n  // generate new flow every ticksPerFlow ticks\n\tif (tick === 1 || tick % ticksPerFlow === 0) {\n\t\tgenerateFlowData();\n\t\tgenerateFlowBuffer();\n\t}\n\n  // uncomment below to see the flow buffer\n\t// drawFlowBuffer();\n\n\t// draw the points using our created regl func\n\tdrawParticles();\n\n\t// update position of particles in state buffers\n\tupdateParticles();\n\n\t// update pointers for next, current, and previous particle states\n\tcycleParticleStates();\n\n\t// simple way of stopping the animation after a few ticks\n\tif (tick === animationTickLimit) {\n\t\tconsole.log(`Hit tick ${tick}, canceling animation loop`);\n\n\t\t// cancel this loop\n\t\tframeLoop.cancel();\n\t}\n});\n"]}
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