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Port over #116

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This commit is contained in:
Sean Lilley 2018-10-31 22:02:13 -04:00
parent e538ded771
commit 05e9788fea
7 changed files with 118 additions and 2 deletions
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1
CHANGES.md
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@ -8,6 +8,7 @@ Change Log
* Fixed handling of unnormalized input normals. [#163](https://github.com/AnalyticalGraphicsInc/obj2gltf/pull/163)
* Added ability to use the first material in the mtl file when the obj is missing `usemtl`. [#163](https://github.com/AnalyticalGraphicsInc/obj2gltf/pull/163)
* Fixed loading faces that contain less than 3 vertices. [#163](https://github.com/AnalyticalGraphicsInc/obj2gltf/pull/163)
* Fixed loading mtllib paths that contain spaces. [#163](https://github.com/AnalyticalGraphicsInc/obj2gltf/pull/163)
### 1.3.4 2018-10-16

21
lib/loadObj.js
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@ -346,8 +346,8 @@ function loadObj(objPath, options) {
var materialName = line.substring(7).trim();
useMaterial(materialName);
} else if (/^mtllib/i.test(line)) {
var paths = line.substring(7).trim().split(' ');
mtlPaths = mtlPaths.concat(paths);
var mtllibLine = line.substring(7).trim();
mtlPaths = mtlPaths.concat(getMtlPaths(mtllibLine));
} else if ((result = vertexPattern.exec(line)) !== null) {
var position = scratchCartesian;
position.x = parseFloat(result[1]);
@ -419,6 +419,23 @@ function loadObj(objPath, options) {
});
}
function getMtlPaths(mtllibLine) {
// Handle paths with spaces. E.g. mtllib my material file.mtl
var mtlPaths = [];
var splits = mtllibLine.split(' ');
var length = splits.length;
var startIndex = 0;
for (var i = 0; i < length; ++i) {
if (path.extname(splits[i]) !== '.mtl') {
continue;
}
var mtlPath = splits.slice(startIndex, i + 1).join(' ');
mtlPaths.push(mtlPath);
startIndex = i + 1;
}
return mtlPaths;
}
function finishLoading(nodes, mtlPaths, objPath, usesMaterials, options) {
nodes = cleanNodes(nodes);
if (nodes.length === 0) {

12
specs/data/box-mtllib-spaces/box mtllib blue.mtl Normal file
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@ -0,0 +1,12 @@
# Blender MTL File: 'box-multiple-materials.blend'
# Material Count: 1
newmtl Blue
Ns 96.078431
Ka 0.000000 0.000000 0.000000
Kd 0.000000 0.000000 0.640000
Ks 0.500000 0.500000 0.500000
Ke 0.000000 0.000000 0.000000
Ni 1.000000
d 1.000000
illum 2

12
specs/data/box-mtllib-spaces/box mtllib green.mtl Normal file
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@ -0,0 +1,12 @@
# Blender MTL File: 'box-multiple-materials.blend'
# Material Count: 1
newmtl Green
Ns 96.078431
Ka 0.000000 0.000000 0.000000
Kd 0.000000 0.640000 0.000000
Ks 0.500000 0.500000 0.500000
Ke 0.000000 0.000000 0.000000
Ni 1.000000
d 1.000000
illum 2

12
specs/data/box-mtllib-spaces/box mtllib red.mtl Normal file
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@ -0,0 +1,12 @@
# Blender MTL File: 'box-multiple-materials.blend'
# Material Count: 1
newmtl Red
Ns 96.078431
Ka 0.000000 0.000000 0.000000
Kd 0.640000 0.000000 0.000000
Ks 0.500000 0.500000 0.500000
Ke 0.000000 0.000000 0.000000
Ni 1.000000
d 1.000000
illum 2

50
specs/data/box-mtllib-spaces/box mtllib.obj Normal file
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@ -0,0 +1,50 @@
# Blender v2.78 (sub 0) OBJ File: 'box-multiple-materials.blend'
# www.blender.org
mtllib box mtllib red.mtl
mtllib box mtllib green.mtl box mtllib blue.mtl
v -1.000000 -1.000000 1.000000
v -1.000000 1.000000 1.000000
v -1.000000 -1.000000 -1.000000
v -1.000000 1.000000 -1.000000
v 1.000000 -1.000000 1.000000
v 1.000000 1.000000 1.000000
v 1.000000 -1.000000 -1.000000
v 1.000000 1.000000 -1.000000
vt 0.0000 0.0000
vt 1.0000 0.0000
vt 1.0000 1.0000
vt 0.0000 1.0000
vt 0.0000 0.0000
vt 1.0000 0.0000
vt 1.0000 1.0000
vt 0.0000 1.0000
vt 0.0000 0.0000
vt 1.0000 0.0000
vt 1.0000 1.0000
vt 0.0000 1.0000
vt 0.0000 0.0000
vt 1.0000 0.0000
vt 1.0000 1.0000
vt 0.0000 1.0000
vt 1.0000 1.0000
vt 0.0000 1.0000
vt 0.0000 0.0000
vt 1.0000 0.0000
vn 0.0000 -1.0000 0.0000
vn 0.0000 1.0000 0.0000
vn -1.0000 0.0000 0.0000
vn 1.0000 0.0000 0.0000
vn 0.0000 0.0000 -1.0000
vn 0.0000 0.0000 1.0000
usemtl Red
f 3/1/1 7/2/1 5/3/1 1/4/1
usemtl Green
f 1/9/3 2/10/3 4/11/3 3/12/3
usemtl Blue
f 3/1/5 4/6/5 8/17/5 7/18/5
usemtl Red
f 8/5/2 4/6/2 2/7/2 6/8/2
usemtl Green
f 7/13/4 8/14/4 6/15/4 5/16/4
usemtl Blue
f 5/19/6 6/20/6 2/7/6 1/4/6

12
specs/lib/loadObjSpec.js
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@ -27,6 +27,7 @@ var objNoMaterialsUrl = 'specs/data/box-no-materials/box-no-materials.obj';
var objMultipleMaterialsUrl = 'specs/data/box-multiple-materials/box-multiple-materials.obj';
var objUncleanedUrl = 'specs/data/box-uncleaned/box-uncleaned.obj';
var objMtllibUrl = 'specs/data/box-mtllib/box-mtllib.obj';
var objMtllibSpacesUrl = 'specs/data/box-mtllib-spaces/box mtllib.obj';
var objMissingMtllibUrl = 'specs/data/box-missing-mtllib/box-missing-mtllib.obj';
var objMissingUsemtlUrl = 'specs/data/box-missing-usemtl/box-missing-usemtl.obj';
var objExternalResourcesUrl = 'specs/data/box-external-resources/box-external-resources.obj';
@ -313,6 +314,17 @@ describe('loadObj', function() {
}), done).toResolve();
});
it('loads obj with mtllib paths with spaces', function(done) {
expect(loadObj(objMtllibSpacesUrl, defaultOptions)
.then(function(data) {
var materials = data.materials;
expect(Object.keys(materials).length).toBe(3);
expect(materials['Blue'].diffuseColor).toEqual([0.0, 0.0, 0.64, 1.0]);
expect(materials['Green'].diffuseColor).toEqual([0.0, 0.64, 0.0, 1.0]);
expect(materials['Red'].diffuseColor).toEqual([0.64, 0.0, 0.0, 1.0]);
}), done).toResolve();
});
it('loads obj with missing mtllib', function(done) {
expect(loadObj(objMissingMtllibUrl, defaultOptions)
.then(function(data) {