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/* dev on boolean WEBGL, based on discussion: - https://discourse.processing.org/t/boolean-csg-union-intersect-etc-3d-shapes-into-p5js-model/29613 progress: 1 - https://editor.p5js.org/ffd8/sketches/ltqoUz4b6 2 - https://editor.p5js.org/micuat/sketches/yaor-qFjd 3 - https://editor.p5js.org/micuat/sketches/KDY2VMqN4 4 - https://editor.p5js.org/ffd8/sketches/LKKTsV5Vz 5 - https://editor.p5js.org/ffd8/sketches/0wne6UHig 6 - https://editor.p5js.org/ffd8/sketches/y4sArq2Kq*/const gId = `test`;let _cube = CSG.cube();let _sphere = CSG.sphere({ center: [1, 0, 0], radius: 1.3});let polygons = _cube.subtract(_sphere).toPolygons();let uv = [0, 0]let imgfunction preload() { img = loadImage('tree.jpg')}function setup() { createCanvas(windowWidth, windowHeight, WEBGL); buildShape(gId, polygons)}function draw() { background(0) orbitControl(3) // why render once, when it can be liiiive!? _cube = CSG.cube(); _sphere = CSG.sphere({ center: [ map(mouseX, 0, width, -2, 2), map(mouseY, 0, height, -2, 2), 0 ], radius: 1.3 }); polygons = _cube.subtract(_sphere).toPolygons(); buildShape(gId, polygons) normalMaterial() // textureMode(NORMAL) texture(img) rotateY(radians(-frameCount / 2)) drawShape(200)}function drawShape(shapeSize) { this._renderer.drawBuffersScaled(gId, shapeSize, shapeSize, shapeSize);}function buildShape(gId, polygons) { const geom = new p5.Geometry(); let vCount = 0; const vertice_dict = {}; for (let i = 0; i < polygons.length; i++) { let p = polygons[i].vertices for (let j = 2; j < p.length; j++) { let v, n; let ia, ib, ic; v = p[0].pos; n = p[0].normal; ia = vertice_dict[`${v.x},${v.y},${v.z},${n.x},${n.y},${n.z}`] if (ia === undefined) { geom.vertices.push(createVector(v.x, v.y, v.z)); geom.vertexNormals.push(createVector(n.x, n.y, n.z)); if (abs(n.z) == max(abs(n.x), abs(n.y), abs(n.z))) geom.uvs.push([(v.x + 1) / 2, (v.y + 1) / 2]) else if (abs(n.y) == max(abs(n.x), abs(n.y), abs(n.z))) geom.uvs.push([(v.z + 1) / 2, (v.x + 1) / 2]) else geom.uvs.push([(v.y + 1) / 2, (v.z + 1) / 2]) vertice_dict[`${v.x},${v.y},${v.z},${n.x},${n.y},${n.z}`] = vCount; ia = vCount; vCount++; } v = p[j - 1].pos; n = p[j - 1].normal; ib = vertice_dict[`${v.x},${v.y},${v.z},${n.x},${n.y},${n.z}`] if (ib === undefined) { geom.vertices.push(createVector(v.x, v.y, v.z)); geom.vertexNormals.push(createVector(n.x, n.y, n.z)); if (abs(n.z) == max(abs(n.x), abs(n.y), abs(n.z))) geom.uvs.push([(v.x + 1) / 2, (v.y + 1) / 2]) else if (abs(n.y) == max(abs(n.x), abs(n.y), abs(n.z))) geom.uvs.push([(v.z + 1) / 2, (v.x + 1) / 2]) else geom.uvs.push([(v.y + 1) / 2, (v.z + 1) / 2]) vertice_dict[`${v.x},${v.y},${v.z},${n.x},${n.y},${n.z}`] = vCount; ib = vCount; vCount++; } v = p[j].pos; n = p[j].normal; ic = vertice_dict[`${v.x},${v.y},${v.z},${n.x},${n.y},${n.z}`] if (ic === undefined) { geom.vertices.push(createVector(v.x, v.y, v.z)); geom.vertexNormals.push(createVector(n.x, n.y, n.z)); if (abs(n.z) == max(abs(n.x), abs(n.y), abs(n.z))) geom.uvs.push([(v.x + 1) / 2, (v.y + 1) / 2]) else if (abs(n.y) == max(abs(n.x), abs(n.y), abs(n.z))) geom.uvs.push([(v.z + 1) / 2, (v.x + 1) / 2]) else geom.uvs.push([(v.y + 1) / 2, (v.z + 1) / 2]) vertice_dict[`${v.x},${v.y},${v.z},${n.x},${n.y},${n.z}`] = vCount; ic = vCount; vCount++; } geom.faces.push([ia, ib, ic]); } } this._renderer.createBuffers(gId, geom);}function genUV() { randomSeed(1) // disable for wildstyle return [round(random(1)), round(random(1))]}