Three.js - include grid data in code

I have this Three.js code loading the JSON bootloader from the /models/mountain.json file:

var Three = new function () { this.scene = new THREE.Scene() this.camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 1000) this.camera.position.set(20, 52, 20); this.camera.rotation.order = 'YXZ'; this.camera.rotation.y = -Math.PI / 4; this.camera.rotation.x = Math.atan(-1 / Math.sqrt(2)); this.camera.scale.addScalar(1); this.renderer = new THREE.WebGLRenderer() this.renderer.setSize(window.innerWidth, window.innerHeight); var ground = new THREE.Mesh( new THREE.PlaneBufferGeometry(436, 624), new THREE.MeshLambertMaterial({color: '#808080'})); ground.rotation.x = -Math.PI / 2; //-90 degrees around the x axis this.scene.add(ground); var light = new THREE.PointLight(0xFFFFDD); light.position.set(-1000, 1000, 1000); this.scene.add(light); var loader = new THREE.JSONLoader(); this.loadMountain = function (x, y) { loader.load('/models/mountain.json', Three.getGeomHandler('#808080', x, y, 1)) } this.loadFields = function () { for (var i=0;i<4000;i++) { Three.loadMountain(x, y) } } this.getGeomHandler = function (color, x, y, scale) { return function (geometry) { var mesh = new THREE.Mesh(geometry, new THREE.MeshLambertMaterial({color: color})); mesh.scale.set(scale, scale, scale); mesh.position.set(x, 0, y); Three.scene.add(mesh); }; } this.init = function () { $('body').append(Three.renderer.domElement); Three.loadFields() Three.render(); } this.render = function () { requestAnimationFrame(Three.render); Three.renderer.render(Three.scene, Three.camera); }; } $(document).ready(function () { Three.init(); }); 

and this is /models/mountain.json content:

 { "metadata": { "formatVersion" : 3.1, "generatedBy" : "Blender 2.7 Exporter", "vertices" : 39, "faces" : 62, "normals" : 36, "colors" : 0, "uvs" : [], "materials" : 1, "morphTargets" : 0, "bones" : 0 }, "scale" : 1.000000, "vertices" : [2.47941e-07,-1.13504e-07,-2.59668,-2.41031,-6.2081e-08,-1.42025,-2.2107,4.55942e-08,1.04307,2.16045,1.84802,0.183901,-0.427399,1.11956e-07,2.56126,1.23588,9.98242e-08,2.28371,2.50387,4.55942e-08,1.04307,2.58781,9.37308e-09,0.214431,2.17385,-0.0483214,-1.42025,1.40026,-0.0483214,-1.74566,1.50645e-07,2.13114,-1.9421,-0.6306,2.13114,-1.52968,-1.04238,2.48498,-1.06715,-1.23632,3,-0.856474,-1.5574,2.62306,-0.476759,-1.68478,2.74775,0.160378,-1.20001,3,0.780135,-1.14654,3,1.41015,-0.31966,3,1.91562,0.31966,2.48498,1.46763,0.92434,3,1.70803,0.754272,2.73835,0.751422,1.90443,2.61032,0.780134,1.52632,2.76301,0.160377,1.78144,2.69402,-0.47676,1.9564,3,-1.06223,0.807846,2.13114,-1.68984,1.32727,3.09213,-1.10549,1.13568,1.38919,-1.21096,1.98255,0.969716,-1.07503,0.529022,2.81989,0.43993,0.969891,3.32801,-1.43745,-0.39848,2.2361,-1.12285,-1.00579,1.31316,2.27174,-0.789081,1.31316,2.34614,0.888122,0.684588,2.17543,0.568656,2.07869,1.615,2.13863,1.49103,1.32889,2.52981,0.924307,0.978923], "faces" : [34,0,11,10,0,0,1,2,34,1,13,12,0,3,4,5,34,0,12,11,0,0,5,1,34,0,1,12,0,0,3,5,34,38,3,37,0,6,7,8,34,9,31,28,0,9,10,11,34,0,10,26,0,0,2,12,34,9,26,31,0,9,12,10,34,9,0,26,0,9,0,12,35,18,17,33,34,0,13,14,15,16,35,37,3,23,22,0,8,7,17,18,34,29,27,25,0,19,20,21,34,28,31,27,0,11,10,20,34,29,28,27,0,19,11,20,34,12,19,20,0,5,22,23,34,5,6,20,0,24,25,23,34,6,38,37,0,25,6,8,34,37,22,21,0,8,18,26,34,30,27,31,0,26,20,10,34,6,37,20,0,25,8,23,34,30,31,32,0,26,10,27,34,37,21,20,0,8,26,23,34,30,32,26,0,26,27,12,34,21,30,20,0,26,26,23,34,11,12,20,0,1,5,23,34,26,10,11,0,12,2,1,34,30,11,20,0,26,1,23,34,30,26,11,0,26,12,1,34,20,35,5,0,23,28,24,34,20,19,36,0,23,22,28,34,20,36,35,0,23,28,28,35,6,7,3,38,0,25,29,7,6,34,7,23,3,0,29,17,7,34,29,25,24,0,19,21,30,34,7,24,23,0,29,30,17,34,7,8,29,0,29,31,19,34,7,29,24,0,29,19,30,34,18,36,19,0,13,28,22,34,4,5,35,0,32,24,28,34,18,35,36,0,13,28,28,34,18,34,4,0,13,16,32,34,18,4,35,0,13,32,28,35,13,14,15,16,0,4,33,33,34,34,30,25,27,0,26,21,20,34,23,24,25,0,17,30,21,34,21,22,23,0,26,18,17,34,30,21,25,0,26,26,21,34,21,23,25,0,26,17,21,35,8,9,28,29,0,31,9,11,19,34,26,32,31,0,12,27,10,34,2,16,15,0,35,34,33,34,14,13,1,0,33,4,3,34,14,2,15,0,33,35,33,34,14,1,2,0,33,3,35,34,2,17,16,0,35,14,34,34,4,34,33,0,32,16,15,34,2,33,17,0,35,15,14,34,2,4,33,0,35,32,15,34,16,12,13,0,34,5,4,34,18,19,12,0,13,22,5,34,16,17,18,0,34,14,13,34,16,18,12,0,34,13,5], "uvs" : [], "normals" : [0.094028,0.298624,-0.949705,-0.162755,0.939238,-0.302133,0.228248,0.832942,-0.504044,-0.822016,0.351848,-0.447707,-0.253456,0.911466,-0.323923,-0.004059,0.913785,-0.40614,0.788598,0.576983,0.21247,0.952086,0.29432,-0.082797,0.625996,0.719138,0.301553,0.474441,0.29017,-0.83105,0.255501,0.796655,-0.547746,0.441328,0.166265,-0.881802,0.221656,0.483047,-0.847041,0.192999,0.761406,0.618824,-0.352977,0.778008,0.5197,-0.653584,0.252663,0.713401,-0.29136,0.293313,0.91052,0.688314,0.722556,0.063967,0.612629,0.761834,0.210364,0.718711,0.280313,-0.63625,0.370495,0.893033,-0.255287,0.629627,0.578692,-0.518326,0.229896,0.680258,0.695944,-0.064241,0.589251,0.805353,0.205145,0.606586,0.768059,0.734519,0.631458,0.24839,0.211341,0.910367,0.355693,-0.135533,0.925748,-0.352916,-0.03061,0.231269,0.972381,0.975982,0.184362,-0.11594,0.694266,0.717338,0.058412,0.712027,0.350871,-0.608173,-0.201483,0.259865,0.944365,-0.820185,0.572069,-0.001556,-0.322733,0.944334,0.063509,-0.922117,0.223151,0.315958], "skinIndices" : [], "skinWeights" : [], "morphTargets" : [], "bones" : [], "animations" : [], "colors" : [], "materials" : [ { "DbgColor": 15658734, "DbgIndex": 0, "DbgName": "default", "vertexColors": false } ] } 

Is it possible to use this content in the code as a variable and add it to scane?

0
source share
1 answer

Here is the template that you should follow if you want to load the model by analyzing the JSON data structure.

Modify your mountain.json file and give your data structure a name.

 var mountain = { "metadata": { "formatVersion" : 3.1, "generatedBy" : "Blender 2.7 Exporter", ... etc ... } 

Include the following code in your code:

 <script src="mountain.js"></script> 

Now you can load your model as follows:

 var loader = new THREE.JSONLoader(); var model = loader.parse( mountain ); mesh = new THREE.Mesh( model.geometry, model.materials[ 0 ] ); scene.add( mesh ); 

three.js r.70

+2
source

Source: https://habr.com/ru/post/983025/


All Articles