TL;DR What’s the best way to get three.js compatible GLB files from MAX source files? Long story Alright, we have a three.js based project that utilizes a lot of various 3d models. Since the very beginning of this project we relied only on OBJ models, but recently we decided to make a step forwar…

Hi ! The Blender GLTF/GLB exporter by Khronos is pretty good, can you export your models to Blender somehow ?

[image] EtagiBI: Well, all GLB models exported from Blender look metallic in three.js, so manual tuning is needed for every model. What type of material is created in Blender, after you import the file? Blender has full control of metalness/roughness but perhaps the import from 3DS Max loses …

[image] donmccurdy: What type of material is created in Blender, after you import the file? Blender has full control of metalness/roughness but perhaps the import from 3DS Max loses some material settings. Metalness is always 1.0: [image] [image] donmccurdy: This sounds like it may be t…

[image] EtagiBI: Metalness is always 1.0: That means “fully metallic” so if you’re unsure why the exports look metallic in three.js, there’s your answer. Or are you asking why Blender shows 1.0 to begin with? And for now GLB is a total outsider in terms of file size. It looks like the Bab…

[image] donmccurdy: That means “fully metallic” so if you’re unsure why the exports look metallic in three.js, there’s your answer. Or are you asking why Blender shows 1.0 to begin with? Well, we can deal with Blender’s forced metalness, but for complex models with many different materials ma…

Well, it seems that Facebook’s converting utility isn’t a trustworthy solution either. Some models become significantly heavier after convertion (even with Draco compression turned on). Here’s my input line: FBX2glTF --binary --input CHAIR.fbx --output Converted/CHAIR Files: [image] Upl…

In that example, the 4.7 MB GLB contains a 4.5 MB image. I’m not sure how or why FBX2glTF has increased the size of the original image, but exporting to separated .gltf/.bin/.jpg may get you around the issue. May be worth filing a bug. :slight_smile:

[image] EtagiBI: It looks like the BabylonJS exporter has quadrupled the number of vertices in the original geometry, somehow. Maybe they’ve converted it from an indexed mesh to triangle soup… I posted this issue on Babylon’s GitHub and received a helpful answer from Selmar: Try selecting a…

Our miserable journey from OBJ to GLB or How to get a proper GLB for three.js?

Questions

EtagiBI October 23, 2018, 10:14am 3

Well, all GLB models exported from Blender look metallic in three.js, so manual tuning is needed for every model.

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Our miserable journey from OBJ to GLB or How to get a proper GLB for three.js?

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