Sprite3D c3b model won't show

cocos2d-x C++
#1

I’ve used the fbx-conv tool from git and followed the example here http://www.cocos2d-x.org/docs/cocos2d-x/en/3d/sprite3d.html but I just can’t display the model.
I’m getting the message cocos2d: warning: Attribute not found: a_normal, which might have something to do with it. Anyone have any experience with this?

Here’s the code:

auto pie = Sprite3D::create("pie.c3b");
pie->setScale(10.0f);
pie->setPosition(Vec2(100, 100));
addChild(pie, 1);
#2

How did you create the .c3b?

#3

I downloaded the tool from: https://github.com/cocos2d/cocos2d-x-3rd-party-libs-bin/tree/v3/fbx-conv/win
Then followed the FBX export guide here: http://digitalrune.github.io/DigitalRune-Documentation/html/6f749972-9cb2-4274-b283-c327ba45e379.htm (also tried using Fbx 6.1 ASCII when exporting).

#4

@xerosugar, are you sure the camera is looking at it?

#5

not 100% no, I was assuming it’s looking straight forward if you don’t do anything with it.

#6

Did you see our doc on this too?

What command did you run?

What is the original format of your 3D file?

#7

Yeah, I read it. Didn’t think I’d need a camera since there already is one. But now I did try to create a perspective cam, and then an orthographic one, but I still couldn’t see it. Source file is a blender file.

I ran both fbx-conv.exe -a -v <myfile> and fbx-conv.exe -a -v -f <myfile> did not get any errors during conversion.

#8

Use cocos studio [warning depreciated] to load it and see if it renders.

  1. download cocos studio

  2. Use cocos studio to create a new project

3)add a new sprite3d node and add your converted model to it. Make sure its visible from the camera

4)compile and tell us the result.
If you can see your model, it means that originally, you placed it wrong and it was not in camera field of view
However in my opinion, cocos support for 3d is rudimentary and you are better off with unity3d, Godot or Unreal. Cocos2d-x excels at 2d and smaller apk size

#9

Take a look at this sample: https://github.com/chukong/programmers-guide-samples/blob/v3.10/cpp/src/chapter9/Chapter9_5.cpp

#10

thanks kalipo, I might try that later on. however I decided I don’t need to use 3d for the thing I’m making so I’m gonna let this go for now.