CODEWITHSUNDEEP
android3daugmented-realityblenderarcore
peco
peco

Reputation: 351

ARCore is not displaying the real dimensions of objects

I have problem with dimensions of the objects that i import in my android application. This is what i am trying to do:

  1. Download 3d object (.obj file) (Example this chair: https://poly.google.com/view/3txPAhYeu-x )
  2. Open the object with Blender and change its dimensions
  3. Import the object in android studio using sceneform plugin

Everything is ok and no error occurs. But when i use the object in my application the size is not the same as size that i set in Blender. Objects are smaller than size set previously.

For example i downloaded the chair and set its height to 1 meter in blender. After importing in my application and using it, it is smaller than real 1 meter:
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Another example where i set my chair to height 2 meters and after using it, it was around 1 meter height:
Link: http://prntscr.com/os9eie

One possible solution is to scale my objects in android studio and make them bigger so somehow i can get the "real" dimensions. But before that i should test more examples and see if all objects can be scaled with the same number. For example that chair from example can be scaled with 2 and it will have more realistic dimensions than dimensions in examples.

Upvotes: 1

Views: 1122

Answers (1)

peco
peco

Reputation: 351

Finally found solution. The problem was that object that I was importing in my application was .obj file and according to wikipedia : "OBJ coordinates have no units..."

This means that it is up to the importing application to decide what a unit is.

After this in Blender, I opened my object (.obj), changed its dimensions and exported it as (.fbx) file. After importing in android studio everything was ok and dimensions were the same like previously set in Blender.

Upvotes: 1

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