Having an issue using a JSON model w/ textures exported from Clara.io.
For those familiar with Clara.io, I'm using File -> Export All -> ThreeJS (JSON) to export and including the files in my ThreeJS project using the ObjectLoader example in the Clara.io docs:
var loader = new THREE.ObjectLoader();
loader.load("zebra.json",function ( obj ) {
scene.add( obj );
});
The mesh Geometry is loading fine, but with no texture.
Console is throwing error(s): 'Undefined texture null', yet the texture files are referenced in the JSON file.
Using ThreeJS r74.
How can I load the texture in three.js? The .json file references multiple textures.
I've reviewed #28723121 but a solution from that thread is unclear and I'd like to keep in-step w/ r74.
Any advice appreciated.
Got the example code working with a different model/texture combo not exported from Clara.io.
Not exactly 'the' answer I was looking for but its a solution for now. Doesn't appear to be a ThreeJS issue.
Related
I'm using three.js and have the scene and everything set up but when I try to load a 3d object (.gltf from here sketchfab 3d object). But the object seems to load fully and then doesn't show up for some reason. The file is being imported correctly.
import laptop from './laptop/scene.gltf'
var objloader = new GLTFLoader();
objloader.load(laptop, function (gltf) {
gltf.scene.scale.set(2, 2, 2);
gltf.scene.position.set(220, 10, 400)
scene.add(gltf.scene);
});
This error is showing up in the console which doesn't make sense because it should be placed correctly.
RangeError: attempting to construct out-of-bounds TypedArray on ArrayBuffer
I have fixed this problem by converting the gltf to glb. The gltf folder had textures folder inside as well as a binary file. Perhaps React was not taking those extra files into account. Because glb is the entire 3d object inside one file with no dependencies.
I'm using a free 3d model from turbosquid. This model is using a texture that looks like this:
It does look good in Blender:
But once exported to three.js, it seems that the texture does not follow the uv map:
Here is the code i'm using:
var loader = new THREE.JSONLoader();
loader.load('json/Ship.json', function ( geometry, materials ) {
ship = new THREE.Mesh(geometry, materials[0]);
scene.add(ship);
}
);
And here is the json I get once exported from Blender:
What am I missing?
Thanks a lot for your help!
There are some minor complexities in this model, which I think are causing issues for Blender exporters. They're not "wrong", but they're hard for exporters to handle without cleanup. You can fix those manually (open the .blend file in Blender, apply modifiers, remove all textures except the diffuse) but the easiest path is probably converting the OBJ version provided by Turbosquid to glTF. Going to the Cesium OBJ->glTF converter (or OBJ2GLTF if you need something programmatic) and dragging in the OBJ/MTL/texture will give the right result. NOTE: you'll need to move the sh3.jpg file into the same directory as the MTL file; it shouldn't be in the Textures/ folder.
Result on https://gltf-viewer.donmccurdy.com/ — using three.js r92 and THREE.GLTFLoader.
I exported some meshes from Blender with the JSON plugin exporter. I exported all of the scene, so I have to use ObjectLoader in three.js to load it.
If I look into the .json file, the materials seems to be there.
I'm loading it like this :
var loader = new THREE.ObjectLoader();
loadMesh();
loader.load("path_to.json", addModelToScene);
function addModelToScene(model) {
obj = scene.add(model);
}
Only the color is applied to each mesh. Is there a way to export material to three.js defined in the cycle render mode?
Cycles materials use a node based system which uses code within blender to generate the material for the object and it doesn't export to other applications.
What you need to do is convert the material to one that is compatible with other applications. For simple materials, it can be easier to create a new Blender Render material that will export to most other applications. For more complex materials, you can often bake the cycles material to an image, which can then be used in other applications.
I have a scene which I am exporting from Blender using the Three.js exporter. After a bit of trial and error I got it to export fine. When I tried to import it into Three, I got a few WebGL errors like glDrawElements: range out of bounds for buffer, which seemed to be related to the size or positioning of the imported object. I mucked around with some stuff related to size and eventually got it to load fine. However, none of my materials with textures are loading, EXCEPT one, which was an object with a single material applied to it.
Here's my pipeline
Create base for the level in my three js editor tool
Export this and import it into Blender for texturing/uv mapping (works fine)
Objects can have a number of materials, one for each face really, each material can have a different texture mapped to it (all good, objects are uv unwrapped etc..,)
Join all objects together (except one object which is a tree with a single material/texture applied to it)
Export the Blender file as a JSON file via the Three.js exporter
Load the file into Three using the SceneImporter
When it comes into Three, there are two objects, one is the tree which has a single texture mapped to its material. The other is a large geometry with 20 materials and textures mapped. This geometry does not have any textures displaying and just shows as a MeshLambertMaterial.
Has anyone else experienced any issues like this? Any solutions?
Seems like the SceneImporter doesn't know what to do with these materials, but all the data is there, so you'll need to give it a little help.
Like so;
loader.load('sceneWithObjectOfManyFaceMaterials.json' , function(loaded)
{
for(var key in loaded.objects)
{
var mesh = loaded.objects[key];
if(mesh.material.materials)
{
mesh.material.materials.forEach(function(m , i)
{
m.map = loaded.materials[m.name].map;
});
}
scene.add(mesh);
}
render();
});
I have a 3D model stored in OBJ file format. I can load the OBJ file using the OBJLoader just fine.
The model renders correctly and material applied correctly.
What is missing is the loading of polygon groups defined in the OBJ file to identify certain areas in the Model to be able to apply different materials over it.
When I look into the OBJLoader source, I found that it ignores the loading of the polygon groups segments.
How can I read the polygon groups using the OBJLoader and create additional child mesh objects to assign to the parent Model Object3D?
I found a workaround to solve this problem
Download the open source 3D modeling application Blender and install it.
Open your OBJ files using Blender.
Export the OBJ model to another format, I used Collada format which works for me
Use the THREE.JS Collada loader
Collada loader will load the object model and its groups and materials successfully.
Hope this help you guys