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Add node to mesh instance instead of transformation.

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This commit is contained in:
kovacsv 2021-10-26 08:50:20 +02:00
parent 92eac095e1
commit af5a0fef13
18 changed files with 85 additions and 93 deletions
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3
sandbox/embed_selfhost_errors.html
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@ -32,16 +32,15 @@
<script type="text/javascript" src="../source/model/property.js"></script>
<script type="text/javascript" src="../source/model/object.js"></script>
<script type="text/javascript" src="../source/model/mesh.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/meshbuffer.js"></script>
<script type="text/javascript" src="../source/model/node.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/model.js"></script>
<script type="text/javascript" src="../source/model/topology.js"></script>
<script type="text/javascript" src="../source/model/modelutils.js"></script>
<script type="text/javascript" src="../source/model/modelfinalization.js"></script>
<script type="text/javascript" src="../source/model/quantities.js"></script>
<script type="text/javascript" src="../source/model/generator.js"></script>
<script type="text/javascript" src="../source/model/meshinstanceid.js"></script>
<script type="text/javascript" src="../source/import/importerutils.js"></script>
<script type="text/javascript" src="../source/import/importerbase.js"></script>
<script type="text/javascript" src="../source/import/importerobj.js"></script>

3
sandbox/embed_selfhost_externallibs.html
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@ -32,16 +32,15 @@
<script type="text/javascript" src="../source/model/property.js"></script>
<script type="text/javascript" src="../source/model/object.js"></script>
<script type="text/javascript" src="../source/model/mesh.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/meshbuffer.js"></script>
<script type="text/javascript" src="../source/model/node.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/model.js"></script>
<script type="text/javascript" src="../source/model/topology.js"></script>
<script type="text/javascript" src="../source/model/modelutils.js"></script>
<script type="text/javascript" src="../source/model/modelfinalization.js"></script>
<script type="text/javascript" src="../source/model/quantities.js"></script>
<script type="text/javascript" src="../source/model/generator.js"></script>
<script type="text/javascript" src="../source/model/meshinstanceid.js"></script>
<script type="text/javascript" src="../source/import/importerutils.js"></script>
<script type="text/javascript" src="../source/import/importerbase.js"></script>
<script type="text/javascript" src="../source/import/importerobj.js"></script>

3
sandbox/embed_selfhost_fullscreen.html
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@ -31,16 +31,15 @@
<script type="text/javascript" src="../source/model/property.js"></script>
<script type="text/javascript" src="../source/model/object.js"></script>
<script type="text/javascript" src="../source/model/mesh.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/meshbuffer.js"></script>
<script type="text/javascript" src="../source/model/node.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/model.js"></script>
<script type="text/javascript" src="../source/model/topology.js"></script>
<script type="text/javascript" src="../source/model/modelutils.js"></script>
<script type="text/javascript" src="../source/model/modelfinalization.js"></script>
<script type="text/javascript" src="../source/model/quantities.js"></script>
<script type="text/javascript" src="../source/model/generator.js"></script>
<script type="text/javascript" src="../source/model/meshinstanceid.js"></script>
<script type="text/javascript" src="../source/import/importerutils.js"></script>
<script type="text/javascript" src="../source/import/importerbase.js"></script>
<script type="text/javascript" src="../source/import/importerobj.js"></script>

3
sandbox/embed_selfhost_manual.html
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@ -32,16 +32,15 @@
<script type="text/javascript" src="../source/model/property.js"></script>
<script type="text/javascript" src="../source/model/object.js"></script>
<script type="text/javascript" src="../source/model/mesh.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/meshbuffer.js"></script>
<script type="text/javascript" src="../source/model/node.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/model.js"></script>
<script type="text/javascript" src="../source/model/topology.js"></script>
<script type="text/javascript" src="../source/model/modelutils.js"></script>
<script type="text/javascript" src="../source/model/modelfinalization.js"></script>
<script type="text/javascript" src="../source/model/quantities.js"></script>
<script type="text/javascript" src="../source/model/generator.js"></script>
<script type="text/javascript" src="../source/model/meshinstanceid.js"></script>
<script type="text/javascript" src="../source/import/importerutils.js"></script>
<script type="text/javascript" src="../source/import/importerbase.js"></script>
<script type="text/javascript" src="../source/import/importerobj.js"></script>

3
sandbox/embed_selfhost_multiple.html
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@ -32,16 +32,15 @@
<script type="text/javascript" src="../source/model/property.js"></script>
<script type="text/javascript" src="../source/model/object.js"></script>
<script type="text/javascript" src="../source/model/mesh.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/meshbuffer.js"></script>
<script type="text/javascript" src="../source/model/node.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/model.js"></script>
<script type="text/javascript" src="../source/model/topology.js"></script>
<script type="text/javascript" src="../source/model/modelutils.js"></script>
<script type="text/javascript" src="../source/model/modelfinalization.js"></script>
<script type="text/javascript" src="../source/model/quantities.js"></script>
<script type="text/javascript" src="../source/model/generator.js"></script>
<script type="text/javascript" src="../source/model/meshinstanceid.js"></script>
<script type="text/javascript" src="../source/import/importerutils.js"></script>
<script type="text/javascript" src="../source/import/importerbase.js"></script>
<script type="text/javascript" src="../source/import/importerobj.js"></script>

3
sandbox/embed_selfhost_single.html
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@ -31,16 +31,15 @@
<script type="text/javascript" src="../source/model/property.js"></script>
<script type="text/javascript" src="../source/model/object.js"></script>
<script type="text/javascript" src="../source/model/mesh.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/meshbuffer.js"></script>
<script type="text/javascript" src="../source/model/node.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/model.js"></script>
<script type="text/javascript" src="../source/model/topology.js"></script>
<script type="text/javascript" src="../source/model/modelutils.js"></script>
<script type="text/javascript" src="../source/model/modelfinalization.js"></script>
<script type="text/javascript" src="../source/model/quantities.js"></script>
<script type="text/javascript" src="../source/model/generator.js"></script>
<script type="text/javascript" src="../source/model/meshinstanceid.js"></script>
<script type="text/javascript" src="../source/import/importerutils.js"></script>
<script type="text/javascript" src="../source/import/importerbase.js"></script>
<script type="text/javascript" src="../source/import/importerobj.js"></script>

3
sandbox/embed_selfhost_single_scroll.html
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@ -31,16 +31,15 @@
<script type="text/javascript" src="../source/model/property.js"></script>
<script type="text/javascript" src="../source/model/object.js"></script>
<script type="text/javascript" src="../source/model/mesh.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/meshbuffer.js"></script>
<script type="text/javascript" src="../source/model/node.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/model.js"></script>
<script type="text/javascript" src="../source/model/topology.js"></script>
<script type="text/javascript" src="../source/model/modelutils.js"></script>
<script type="text/javascript" src="../source/model/modelfinalization.js"></script>
<script type="text/javascript" src="../source/model/quantities.js"></script>
<script type="text/javascript" src="../source/model/generator.js"></script>
<script type="text/javascript" src="../source/model/meshinstanceid.js"></script>
<script type="text/javascript" src="../source/import/importerutils.js"></script>
<script type="text/javascript" src="../source/import/importerbase.js"></script>
<script type="text/javascript" src="../source/import/importerobj.js"></script>

45
source/model/meshinstance.js
View File

@ -1,10 +1,29 @@
OV.MeshInstanceId = class
{
constructor (nodeId, meshIndex)
{
this.nodeId = nodeId;
this.meshIndex = meshIndex;
}
IsEqual (rhs)
{
return this.nodeId === rhs.nodeId && this.meshIndex === rhs.meshIndex;
}
GetKey ()
{
return this.nodeId.toString () + ':' + this.meshIndex.toString ();
}
};
OV.MeshInstance = class extends OV.Object3D
{
constructor (mesh, transformation)
constructor (node, mesh)
{
super ();
this.node = node;
this.mesh = mesh;
this.transformation = transformation;
}
VertexCount ()
@ -29,11 +48,12 @@ OV.MeshInstance = class extends OV.Object3D
EnumerateVertices (onVertex)
{
if (this.transformation.IsIdentity ()) {
let transformation = this.node.GetWorldTransformation ();
if (transformation.IsIdentity ()) {
this.mesh.EnumerateVertices (onVertex);
} else {
this.mesh.EnumerateVertices ((vertex) => {
const transformed = this.transformation.TransformCoord3D (vertex);
const transformed = transformation.TransformCoord3D (vertex);
onVertex (transformed);
});
}
@ -46,15 +66,24 @@ OV.MeshInstance = class extends OV.Object3D
EnumerateTriangleVertices (onTriangleVertices)
{
if (this.transformation.IsIdentity ()) {
let transformation = this.node.GetWorldTransformation ();
if (transformation.IsIdentity ()) {
this.mesh.EnumerateTriangleVertices (onTriangleVertices);
} else {
this.mesh.EnumerateTriangleVertices ((v0, v1, v2) => {
const v0Transformed = this.transformation.TransformCoord3D (v0);
const v1Transformed = this.transformation.TransformCoord3D (v1);
const v2Transformed = this.transformation.TransformCoord3D (v2);
const v0Transformed = transformation.TransformCoord3D (v0);
const v1Transformed = transformation.TransformCoord3D (v1);
const v2Transformed = transformation.TransformCoord3D (v2);
onTriangleVertices (v0Transformed, v1Transformed, v2Transformed);
});
}
}
GetTransformedMesh ()
{
let transformation = this.node.GetWorldTransformation ();
const transformed = OV.CloneMesh (this.mesh);
OV.TransformMesh (transformed, transformation);
return transformed;
}
};

18
source/model/meshinstanceid.js
View File

@ -1,18 +0,0 @@
OV.MeshInstanceId = class
{
constructor (nodeId, meshIndex)
{
this.nodeId = nodeId;
this.meshIndex = meshIndex;
}
IsEqual (rhs)
{
return this.nodeId === rhs.nodeId && this.meshIndex === rhs.meshIndex;
}
GetKey ()
{
return this.nodeId.toString () + ':' + this.meshIndex.toString ();
}
};

24
source/model/model.js
View File

@ -118,32 +118,20 @@ OV.Model = class extends OV.ModelObject3D
EnumerateMeshInstances (onMeshInstance)
{
function EnumerateNodeMeshInstances (model, node, transformation, onMeshInstance)
{
let nodeTransformation = node.GetTransformation ().Clone ();
nodeTransformation.Append (transformation);
for (let childNode of node.GetChildNodes ()) {
EnumerateNodeMeshInstances (model, childNode, nodeTransformation, onMeshInstance);
}
this.root.Enumerate ((node) => {
for (let meshIndex of node.GetMeshIndices ()) {
let mesh = model.GetMesh (meshIndex);
let meshInstance = new OV.MeshInstance (mesh, nodeTransformation);
let mesh = this.GetMesh (meshIndex);
let meshInstance = new OV.MeshInstance (node, mesh);
onMeshInstance (meshInstance);
}
}
let transformation = new OV.Transformation ();
EnumerateNodeMeshInstances (this, this.root, transformation, onMeshInstance);
});
}
EnumerateTransformedMeshInstances (onMesh)
{
this.EnumerateMeshInstances ((meshInstance) => {
const mesh = OV.CloneMesh (meshInstance.mesh);
OV.TransformMesh (mesh, meshInstance.transformation);
onMesh (mesh);
const transformed = meshInstance.GetTransformedMesh ();
onMesh (transformed);
});
}

3
source/model/node.js
View File

@ -68,8 +68,7 @@ OV.Node = class
let transformation = this.transformation.Clone ();
let parent = this.parent;
while (parent !== null) {
const parentTransformation = parent.transformation.Clone ();
transformation = parentTransformation.Append (transformation);
transformation.Append (parent.transformation);
parent = parent.parent;
}
return transformation;

26
test/tests/model_test.js
View File

@ -309,7 +309,7 @@ function CreateTranslatedRotatedCubesModel ()
rotatedNode.SetName ('Rotated');
let rotation = OV.QuaternionFromAxisAngle (new OV.Coord3D (0.0, 0.0, 1.0), Math.PI / 2.0);
rotatedNode.SetTransformation (new OV.Transformation (new OV.Matrix ().CreateRotation (rotation.x, rotation.y, rotation.z, rotation.w)));
rotatedNode.SetTransformation (new OV.Transformation (new OV.Matrix ().CreateRotation (0.0, 0.0, 0.7071067811865475, 0.7071067811865476)));
let translatedRotatedNode = new OV.Node ();
translatedRotatedNode.SetName ('Translated and Rotated');
@ -484,14 +484,14 @@ describe ('Node Hierarchy', function () {
let boundingBox2 = OV.GetBoundingBox (meshInstances[1]);
let boundingBox3 = OV.GetBoundingBox (meshInstances[2]);
assert (OV.CoordIsEqual3D (boundingBox1.min, new OV.Coord3D (2.0, 0.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox1.max, new OV.Coord3D (3.0, 1.0, 1.0)));
assert (OV.CoordIsEqual3D (boundingBox1.min, new OV.Coord3D (0.0, 0.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox1.max, new OV.Coord3D (1.0, 1.0, 1.0)));
assert (OV.CoordIsEqual3D (boundingBox2.min, new OV.Coord3D (-1.0, 2.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox2.max, new OV.Coord3D (0.0, 3.0, 1.0)));
assert (OV.CoordIsEqual3D (boundingBox2.min, new OV.Coord3D (2.0, 0.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox2.max, new OV.Coord3D (3.0, 1.0, 1.0)));
assert (OV.CoordIsEqual3D (boundingBox3.min, new OV.Coord3D (0.0, 0.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox3.max, new OV.Coord3D (1.0, 1.0, 1.0)));
assert (OV.CoordIsEqual3D (boundingBox3.min, new OV.Coord3D (-1.0, 2.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox3.max, new OV.Coord3D (0.0, 3.0, 1.0)));
});
it ('Enumerate transformed mesh instances', function () {
@ -531,13 +531,13 @@ describe ('Node Hierarchy', function () {
let boundingBox2 = OV.GetBoundingBox (meshes[1]);
let boundingBox3 = OV.GetBoundingBox (meshes[2]);
assert (OV.CoordIsEqual3D (boundingBox1.min, new OV.Coord3D (2.0, 0.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox1.max, new OV.Coord3D (3.0, 1.0, 1.0)));
assert (OV.CoordIsEqual3D (boundingBox1.min, new OV.Coord3D (0.0, 0.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox1.max, new OV.Coord3D (1.0, 1.0, 1.0)));
assert (OV.CoordIsEqual3D (boundingBox2.min, new OV.Coord3D (-1.0, 2.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox2.max, new OV.Coord3D (0.0, 3.0, 1.0)));
assert (OV.CoordIsEqual3D (boundingBox2.min, new OV.Coord3D (2.0, 0.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox2.max, new OV.Coord3D (3.0, 1.0, 1.0)));
assert (OV.CoordIsEqual3D (boundingBox3.min, new OV.Coord3D (0.0, 0.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox3.max, new OV.Coord3D (1.0, 1.0, 1.0)));
assert (OV.CoordIsEqual3D (boundingBox3.min, new OV.Coord3D (-1.0, 2.0, 0.0)));
assert (OV.CoordIsEqual3D (boundingBox3.max, new OV.Coord3D (0.0, 3.0, 1.0)));
});
});

20
test/tests/modelutils_test.js
View File

@ -4,7 +4,7 @@ var testUtils = require ('../utils/testutils.js');
describe ('Model Utils', function () {
it ('Create Merged Model', function () {
var model = new OV.Model ();
var mesh1 = new OV.Mesh ();
mesh1.AddVertex (new OV.Coord3D (0.0, 0.0, 0.0));
mesh1.AddVertex (new OV.Coord3D (1.0, 0.0, 0.0));
@ -72,11 +72,11 @@ describe ('Model Utils', function () {
normals : [0, 0, 1, 0, 0, 1, 0, 0, 1],
uvs : [],
mat : 0
}
}
]
}
]
});
});
});
it ('Mesh Bounding Box', function () {
@ -89,15 +89,17 @@ describe ('Model Utils', function () {
it ('Mesh Instance Bounding Box', function () {
let cube = OV.GenerateCuboid (null, 1.0, 1.0, 1.0);
let transformation = new OV.Transformation (new OV.Matrix ().CreateTranslation (2.0, 0.0, 0.0));
let cubeInstance = new OV.MeshInstance (cube, transformation);
let node = new OV.Node ();
node.SetTransformation (transformation);
let cubeInstance = new OV.MeshInstance (node, cube);
let cubeInstanceBounds = OV.GetBoundingBox (cubeInstance);
assert (OV.CoordIsEqual3D (cubeInstanceBounds.min, new OV.Coord3D (2.0, 0.0, 0.0)));
assert (OV.CoordIsEqual3D (cubeInstanceBounds.max, new OV.Coord3D (3.0, 1.0, 1.0)));
});
});
it ('Model Bounding Box', function () {
var model = new OV.Model ();
var mesh1 = new OV.Mesh ();
mesh1.AddVertex (new OV.Coord3D (0.0, 0.0, 0.0));
mesh1.AddVertex (new OV.Coord3D (1.0, 0.0, 0.0));
@ -138,7 +140,7 @@ describe ('Model Utils', function () {
for (let i = 0; i < topology.edges.length; i++) {
assert.strictEqual (topology.edges[i].triangles.length, 2);
}
});
});
it ('Cube Topology Calculation', function () {
let cube = testUtils.GetModelWithOneMesh (OV.GenerateCuboid (null, 1.0, 1.0, 1.0));
@ -181,7 +183,7 @@ describe ('Model Utils', function () {
let topology = OV.GetTopology (model);
assert.strictEqual (topology.vertices.length, 15);
assert (OV.IsSolid (model));
});
});
it ('Two Cubes Connecting in One Edge Topology Calculation', function () {
const model = testUtils.GetTwoCubesConnectingInOneEdgeModel ();
@ -195,5 +197,5 @@ describe ('Model Utils', function () {
let topology = OV.GetTopology (model);
assert.strictEqual (topology.vertices.length, 12);
assert (OV.IsSolid (model));
});
});
});

2
test/tests/node_test.js
View File

@ -118,7 +118,7 @@ describe ('Node', function() {
let tr2 = new OV.Transformation (new OV.Matrix ().CreateRotation (rotation.x, rotation.y, rotation.z, rotation.w));
let tr3 = new OV.Transformation (new OV.Matrix ().CreateTranslation (0.0, 0.0, 2.0));
let refTr = new OV.Transformation ().Append (tr1).Append (tr2).Append (tr3);
let refTr = new OV.Transformation ().Append (tr3).Append (tr2).Append (tr1);
let node1 = new OV.Node ();
node1.SetTransformation (tr1);

10
test/tests/quantities_test.js
View File

@ -18,7 +18,7 @@ describe ('Quantities', function () {
it ('Two Cubes Connecting in One Vertex Volume Calculation', function () {
const model = testUtils.GetTwoCubesConnectingInOneVertexModel ();
assert (OV.IsEqual (OV.CalculateVolume (model), 2.0));
});
});
it ('Two Cubes Connecting in One Edge Volume Calculation', function () {
const model = testUtils.GetTwoCubesConnectingInOneEdgeModel ();
@ -28,7 +28,7 @@ describe ('Quantities', function () {
it ('Two Cubes Connecting in One Face Volume Calculation', function () {
const model = testUtils.GetTwoCubesConnectingInOneFaceModel ();
assert (OV.IsEqual (OV.CalculateVolume (model), 2.0));
});
});
it ('Cube with Wrongly Oriented Triangle Volume Calculation', function () {
var mesh = new OV.Mesh ();
@ -90,8 +90,10 @@ describe ('Quantities', function () {
it ('Cube Scaled Volume and Area Calculation', function () {
const mesh = OV.GenerateCuboid (null, 1.0, 1.0, 1.0);
const transformation = new OV.Transformation (new OV.Matrix ().CreateScale (2.0, 2.0, 2.0));
const meshInstance = new OV.MeshInstance (mesh, transformation);
let node = new OV.Node ();
node.SetTransformation (transformation);
const meshInstance = new OV.MeshInstance (node, mesh);
assert (OV.IsEqual (OV.CalculateVolume (meshInstance), 8.0));
assert (OV.IsEqual (OV.CalculateSurfaceArea (meshInstance), 24.0));
});
});
});

3
tools/config.json
View File

@ -28,16 +28,15 @@
"source/model/property.js",
"source/model/object.js",
"source/model/mesh.js",
"source/model/meshinstance.js",
"source/model/meshbuffer.js",
"source/model/node.js",
"source/model/meshinstance.js",
"source/model/model.js",
"source/model/topology.js",
"source/model/modelutils.js",
"source/model/modelfinalization.js",
"source/model/quantities.js",
"source/model/generator.js",
"source/model/meshinstanceid.js",
"source/import/importerutils.js",
"source/import/importerbase.js",
"source/import/importerobj.js",

3
website/embed.html
View File

@ -41,16 +41,15 @@
<script type="text/javascript" src="../source/model/property.js"></script>
<script type="text/javascript" src="../source/model/object.js"></script>
<script type="text/javascript" src="../source/model/mesh.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/meshbuffer.js"></script>
<script type="text/javascript" src="../source/model/node.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/model.js"></script>
<script type="text/javascript" src="../source/model/topology.js"></script>
<script type="text/javascript" src="../source/model/modelutils.js"></script>
<script type="text/javascript" src="../source/model/modelfinalization.js"></script>
<script type="text/javascript" src="../source/model/quantities.js"></script>
<script type="text/javascript" src="../source/model/generator.js"></script>
<script type="text/javascript" src="../source/model/meshinstanceid.js"></script>
<script type="text/javascript" src="../source/import/importerutils.js"></script>
<script type="text/javascript" src="../source/import/importerbase.js"></script>
<script type="text/javascript" src="../source/import/importerobj.js"></script>

3
website/index.html
View File

@ -41,16 +41,15 @@
<script type="text/javascript" src="../source/model/property.js"></script>
<script type="text/javascript" src="../source/model/object.js"></script>
<script type="text/javascript" src="../source/model/mesh.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/meshbuffer.js"></script>
<script type="text/javascript" src="../source/model/node.js"></script>
<script type="text/javascript" src="../source/model/meshinstance.js"></script>
<script type="text/javascript" src="../source/model/model.js"></script>
<script type="text/javascript" src="../source/model/topology.js"></script>
<script type="text/javascript" src="../source/model/modelutils.js"></script>
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