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PrincessGod / objTo3d-tiles

Convert obj model file to 3d tiles
https://princessgod.github.io/objTo3d-tiles
Apache License 2.0
771 stars 230 forks source link

create LOD #5

Open skylning opened 6 years ago

skylning commented 6 years ago

It's a great tool for model convert to cesium, i want to know the tool is support to create LOD whether or not

PrincessGod commented 6 years ago

You can find LOD sample data in there, which gives you an idea to implement LOD in 3D Tiles.

After you understand it, you can make LOD tileset by following steps :

I hope this is clear enough.

ManishSahu53 commented 6 years ago

@PrincessGod Can you tell us how to generate different LOD model out of single obj file? I couldnt find suitable application to do this. Any lead in this would be helpful

PrincessGod commented 6 years ago

Sorry, I am not familiar with 3D modeling software (๑˙ー˙๑)

CrashedBboy commented 5 years ago

Hello @skylning and @ManishSahu53 , I just create an online tool to tile big single model into 3D Tiles with Level of Detail
http://www.3dtiler.com/
If you want to tile your model which is bigger than 20MB(current upload limit), you can send me the file and I can tile it manually.

nxddsnc commented 5 years ago

Hi @CrashedBboy . I just tried you converter with an gltf file. I think the model is converted but the when I tried to download the converted 3dtile, the server respond with 500. Here's the download link http://www.3dtiler.com/tiler/3dtiles/iv7elle68p2ofsnl. BTW. I am working on my own open source 3dtile converter with vcglib's "quadric error method" to simplify mesh. Normally it's ok. But when there are many small meshes in the scene. This simplification method cannot merge the as one(Which I think it should). Do you have any experience in that if you don't mind to share?

cyrilpreiss commented 2 years ago

@PrincessGod Can you tell us how to generate different LOD model out of single obj file? I couldnt find suitable application to do this. Any lead in this would be helpful

hi, could you explain a little more how to do this ?

fish-uncle commented 1 year ago

您可以在其中找到 LOD 示例数据，这为您提供了在 3D Tiles 中实现 LOD 的想法。

理解之后，就可以按照以下步骤制作LOD瓦片集了：

  • 导出 .obj具有不同详细程度的模型。
  • 使用 obj23dtiles 将它们转换为.b3dm.
  • tileset.json按照示例数据的文件创建或修改tileset.json文件。

我希望这足够清楚。

链接失效了，能再提供个链接吗？