Genuary 6: Landscape - OpenProcessing

mySketch
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let geom
let blurRenderer
​
function setup() {
  createCanvas(windowWidth, windowHeight, WEBGL)
  
  blurRenderer = createGaussianBlurRenderer()
  blurRenderer.setIntensity(0.08)
  blurRenderer.setSamples(20)
  blurRenderer.setDof(50)
  
  const floor = height/2
​
  const forest = []
  forest.push(() => {
    translate(0, floor)
    rotateX(PI/2)
    fill('#61626A')
    plane(width*16, width*16)
  })
  
  for (let i = 0; i < 400; i++) {
    let x = randomGaussian(0, 1/3) * 4 * width
    let z = randomGaussian(0, 1/3) * 4 * width
    let d = Math.hypot(x, z)
    if (d < 200) {
      x = x / d * 200
      z = z / d * 200
    }
    const h = height*0.5 + random(-1,1)*height*0.02
    const branches = [{
      x,
      y: floor,
      z,
      r: width * 0.01,
      h
    }]
    const n = round(random(20))
    for (let i = 0; i < n; i++) {
      const parent = random(branches)
      const off = random([{ x: -1, z: 0 }, { x: 1, z: 0 }, { x: 0, z: -1 }, { x: 0, z: 1 }])
      const y = random(parent.y, floor - h)
      branches.push({
        parent,
        x: parent.x + off.x * width*0.05,
        z: parent.z + off.z * width*0.05,
        r: parent.r * 0.8,
        y,
        h: (y - (floor - h)),
      })
    }
    forest.push(() => {
      for (const branch of branches) {
        fill('#BFB9AC')
        if (branch.parent) {
          push()
          translate(
            (branch.x + branch.parent.x)/2,
            branch.y,
            (branch.z + branch.parent.z)/2
          )
          box(
            max(abs(branch.x - branch.parent.x), 0) + branch.r,
            branch.r,
            max(abs(branch.z - branch.parent.z), 0) + branch.r,
          )
          pop()
        }
        push()
        translate(branch.x, branch.y - branch.h/2, branch.z)
        box(branch.r, branch.h, branch.r)
        translate(0, -branch.h/2, 0)
        fill('#4F8572')
        box(branch.r*8, width * 0.05, branch.r*8)
        pop()
      }
    })
  }
  
  geom = buildGeometry(() => {
    noStroke()
    for (const drawObj of forest) {
      push()
      drawObj()
      pop()
    }
  })
}
​
function draw() {
  clear()
  blurRenderer.draw(() => {
    background('#F1D2A6')
    // orbitControl()
​
    ambientLight('#3657A4')
    // spotLight(color(255), 0, -height, 0, 0, 1, 0, PI*0.5)
    pointLight(0, 100, 255, 0, -height, -width)
    directionalLight(255, 255, 255, -0.4, 0, 1)
    directionalLight(255, 255, 255, 0.4, 0, 1)
    directionalLight(255, 255, 255, 0, -0.4, 1)
    directionalLight(255, 255, 255, 0, 0.4, 1)
    camera(0, height*0.4, 0, 0, 0, -800)
    
    push()
    translate(0, -height*0.1, -400)
    blurRenderer.focusHere()
    pop()
    
    rotateY(millis()*0.0001)
    model(geom)
  })
}