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Exceptions when working with CSG

oschakravarthi

By oschakravarthi,
in Questions & Answers

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oschakravarthi Newbie

oschakravarthi

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Posted

Hi, I am getting a couple of exceptions when working with CSG. Please help me. Thanks in advance. 

 

Case 1: var myCSG = BABYLON.CSG.FromMesh(myMesh);

Exception: 
TypeError: Cannot read property 'length' of undefined
    at HOST._registerEnvironmentCore (http://localhost:51879/app/js/diwise.babylon.host.max.js:141:44)
    at http://localhost:51879/app/js/diwise.babylon.host.max.js:160:23
    at d (http://localhost:51879/app/js/external/babylon.js:1:1199438)
    at http://localhost:51879/app/js/external/babylon.js:1:1199625"
    
The below is the myMesh json from the .babylon file

            "materialId": null,
            "isEnabled": true,
            "isVisible": true,
            "positions": null,
            "normals": null,
            "tangents": null,
            "uvs": null,
            "uvs2": null,
            "colors": null,
            "hasVertexAlpha": false,
            "matricesIndices": null,
            "matricesWeights": null,
            "matricesIndicesExtra": null,
            "matricesWeightsExtra": null,
            "indices": null,
            "receiveShadows": false,
            "infiniteDistance": false,
            "billboardMode": 0,
            "visibility": 1.0,
            "subMeshes": null,
            "instances": null,
            "skeletonId": -1,
            "numBoneInfluencers": 4,
            "applyFog": false,
            "metadata": null,
            "rotation": null,
            "scaling": [1.0, 1.0, 1.0],
            "rotationQuaternion": [-0.7071, 0.0, 0.0, 0.7071],
            "actions": null,
            "checkCollisions": false,
            "pickable": true,
            "showBoundingBox": false,
            "showSubMeshesBoundingBox": false,
            "alphaIndex": 0,
            "physicsImpostor": 0,
            "physicsMass": 0.0,
            "physicsFriction": 0.0,
            "physicsRestitution": 0.0,
            "name": "Aparna_Bare_Aparetment",
            "id": "6882f559-019a-4dd6-bad8-eed949a829cc",
            "parentId": null,
            "position": [-166.4937, 16.804, -2169.72632],
            "animations": [],
            "autoAnimate": true,
            "autoAnimateFrom": 0,
            "autoAnimateTo": 100,
            "autoAnimateLoop": true

Case 2: myCSG = myCSG.subtract(BABYLON.CSG.FromMesh(myMesh));
Exception: 
"TypeError: Cannot read property 'normal' of null
    at y.splitPolygon (http://localhost:51879/app/js/external/babylon.js:1:1468621)
    at n.build (http://localhost:51879/app/js/external/babylon.js:1:1470812)
    at n.build (http://localhost:51879/app/js/external/babylon.js:1:1470916)
    at n.build (http://localhost:51879/app/js/external/babylon.js:1:1470976)
    at n.build (http://localhost:51879/app/js/external/babylon.js:1:1470976)
    at n.build (http://localhost:51879/app/js/external/babylon.js:1:1470976)
    at n.build (http://localhost:51879/app/js/external/babylon.js:1:1470976)
    at n.build (http://localhost:51879/app/js/external/babylon.js:1:1470916)
    at n.build (http://localhost:51879/app/js/external/babylon.js:1:1470976)
    at n.build (http://localhost:51879/app/js/external/babylon.js:1:1470916)"
    
    
            "materialId": "508f3a91-5f5a-49e2-b0a8-4bbaec5c3a46",
            "isEnabled": true,
            "isVisible": true,
            "positions": [-175.5218, 5.9744, 185.1351, -175.5218, -5.9746, -185.1352, -175.5218, 5.9745, -185.1352, -175.5218, -5.9746, -185.1352, -175.5218, 5.9744, 185.1351, -175.5218, -5.9747, 185.1351, -175.5218, 5.9744, 185.1351, 175.5218, -5.9746, 185.1351, -175.5218, -5.9747, 185.1351, 175.5218, -5.9746, 185.1351, -175.5218, 5.9744, 185.1351, 175.5218, 5.9745, 185.1351, 175.5218, 5.9746, -185.1352, 175.5218, -5.9746, 185.1351, 175.5218, 5.9745, 185.1351, 175.5218, -5.9746, 185.1351, 175.5218, 5.9746, -185.1352, 175.5218, -5.9745, -185.1352, -175.5218, 5.9745, -185.1352, 175.5218, -5.9745, -185.1352, 175.5218, 5.9746, -185.1352, 175.5218, -5.9745, -185.1352, -175.5218, 5.9745, -185.1352, -175.5218, -5.9746, -185.1352, 175.5218, 5.9745, 185.1351, -175.5218, 5.9744, 185.1351, -175.5218, 5.9745, -185.1352, 175.5218, 5.9745, 185.1351, -175.5218, 5.9745, -185.1352, 175.5218, 5.9746, -185.1352, -175.5218, -5.9746, -185.1352, -175.5218, -5.9747, 185.1351, 175.5218, -5.9745, -185.1352, 175.5218, -5.9745, -185.1352, -175.5218, -5.9747, 185.1351, 175.5218, -5.9746, 185.1351],
            "normals": [-1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, 1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039, -0.0039, -1.0, -0.0039],
            "tangents": null,
            "uvs": [0.4443, 1.9655, 0.4292, 1.502, 0.4443, 1.502, 0.4292, 1.502, 0.4443, 1.9655, 0.4292, 1.9655, 0.0168, 1.0024, 0.0018, 1.4985, 0.0018, 1.0024, 0.0018, 1.4985, 0.0168, 1.0024, 0.0168, 1.4985, 0.4236, 1.9655, 0.4087, 1.502, 0.4236, 1.502, 0.4087, 1.502, 0.4236, 1.9655, 0.4087, 1.9655, 0.0384, 1.4985, 0.0234, 1.0024, 0.0384, 1.0024, 0.0234, 1.0024, 0.0384, 1.4985, 0.0234, 1.4985, 0.5083, 1.0024, 0.5083, 1.4985, 0.0448, 1.4985, 0.5083, 1.0024, 0.0448, 1.4985, 0.0448, 1.0024, 0.45, 1.502, 0.9136, 1.502, 0.45, 1.998, 0.45, 1.998, 0.9136, 1.502, 0.9136, 1.998],
            "uvs2": [0.0078, 1.4141, 0.4919, 1.3989, 0.4919, 1.4141, 0.4919, 1.3989, 0.0078, 1.4141, 0.0078, 1.3989, 0.4927, 1.4453, 0.0078, 1.4302, 0.4927, 1.4302, 0.0078, 1.4302, 0.4927, 1.4453, 0.0078, 1.4453, 0.5078, 1.4141, 0.9917, 1.3989, 0.9917, 1.4141, 0.9917, 1.3989, 0.5078, 1.4141, 0.5078, 1.3989, 0.0078, 1.4766, 0.4927, 1.4614, 0.4927, 1.4766, 0.4927, 1.4614, 0.0078, 1.4766, 0.0078, 1.4614, 0.9917, 1.5073, 0.9917, 1.9922, 0.5078, 1.9922, 0.9917, 1.5073, 0.5078, 1.9922, 0.5078, 1.5073, 0.0078, 1.5073, 0.4919, 1.5073, 0.0078, 1.9922, 0.0078, 1.9922, 0.4919, 1.5073, 0.4919, 1.9922],
            "colors": null,
            "hasVertexAlpha": false,
            "matricesIndices": null,
            "matricesWeights": null,
            "matricesIndicesExtra": null,
            "matricesWeightsExtra": null,
            "indices": [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35],
            "receiveShadows": true,
            "infiniteDistance": false,
            "billboardMode": 0,
            "visibility": 1.0,
            "subMeshes": [{
                    "materialIndex": 0,
                    "verticesStart": 0,
                    "verticesCount": 36,
                    "indexStart": 0,
                    "indexCount": 36
                }
            ],
            "instances": null,
            "skeletonId": -1,
            "numBoneInfluencers": 4,
            "applyFog": true,
            "metadata": null,
            "rotation": null,
            "scaling": [1.0, 1.0, 1.0],
            "rotationQuaternion": [0.0, 0.0, 0.0, 1.0],
            "actions": null,
            "checkCollisions": false,
            "pickable": false,
            "showBoundingBox": false,
            "showSubMeshesBoundingBox": false,
            "alphaIndex": 1000,
            "physicsImpostor": 0,
            "physicsMass": 0.0,
            "physicsFriction": 0.0,
            "physicsRestitution": 0.0,
            "name": "Wall_Kitchen_Main",
            "id": "37d29837-d9f5-4b3c-a5b8-2a6bba820957",
            "parentId": "6882f559-019a-4dd6-bad8-eed949a829cc",
            "position": [373.6895, -436.4482, 184.3937],
            "animations": [],
            "autoAnimate": true,
            "autoAnimateFrom": 0,
            "autoAnimateTo": 100,
            "autoAnimateLoop": true

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