Why my model rendered perfectly in Blender but bad in babylonjs,how can I fix it?

Questions
1

Sorry for my poor english, but I need help.

The picture below is an eye I created in Blender and rendered perfectly. The main difficulty was the glass texture of the pupil. This glass texture was created using the rendering node in the red box.

企业微信截图_1731176058320
企业微信截图_17311760583201751×1439 127 KB

Then I imported the glb format file exported by Blender into the babylonjs scene. The code is as follows.
企业微信截图_17311765171919
企业微信截图_173117651719191941×811 85.6 KB

The final rendering effect in the babylonjs engine is like this：
企业微信截图_17311748456175
企业微信截图_173117484561751261×1212 27.9 KB

I found that the rendering nodes in the red box of blender are invalid in babylonjs. How can I solve this problem? Or is there another way to achieve this glass pupil effect?

2

Hi, @lbjsuck and welcome to the forum,

Maybe you should try again with this : Babylon.js docs

3

I’m not sure if in Blender you have any option to determine the material mode: Opaque, Transparent or Cutout
I usually work with 3Ds Max and you have a property to assign it.

Also try to assign an Alpha mode to the material:

const material = scene.getMaterialByName("MaterialName");
material.transparencyMode = BABYLON.Material.MATERIAL_ALPHABLEND;
material.alpha = 1;
// MATERIAL_ALPHATEST 
// MATERIAL_ALPHATESTANDBLEND