How to show 3D object in the reader ?

I want to show 3D object in my pdf .
On button click I want to open 3D object .

Is there any player needed for it.
Please suggest me the code to show 3D object ?

Even if our native library is able to extract U3D information and datas, we don't provide any rendering engine.
We deeply evaluated how to manage and render U3D format which is the one Adobe was choosing to embed 3D models within PDF files.

Actually we've not found any good solution both from open source and commercial able to render such a weird format on mobiles.

How to play 3D object with extension (*.u3d)?

I have embedded it with adobe but its not showing any thing .

We've not found any common way to do that activity.
On GooglePlay there are few U3D player and most of them are unmanaged from years.
There is also a PDF viewer which was stating to be able to read PDF and render U3D... but it was true only with its own demo files. Each file we was creating with Acrobat Pro wasn't parsed correctly.

We're evaluating some non standard workaround but each of them wouldn't be able to show 3D models on Acrobat on Windows or Mac.

So its not possible to show 3D object ?

As per our knowledge it's not possible right now.
The only way could be to store 3d models in a format different from U3D (for example FBX) within the PDF file.
That way you could extract such files and render them through a 3D rendering framework like github.com/Rajawali .

We could support you while storing and extracting fbx files in the PDF file, the rendering engine integration would be in charge of you.