Alpha Value Not Working Properly In Scenefrom GLB file

[arun4fms]

am using sceneform with modelrenderable where GLB is loaded from an external URL. I tried to change the opacity of the GLB with the given below method, but there is no change in alpha or opacity.

private void addHighlightToNode(Node node, ModelRenderable andyRenderablee) {
MaterialInstance[] materialInstances = filamentAsset.getMaterialInstances();

    TextureSampler textureSampler = new TextureSampler();
    for(MaterialInstance materialInstance: materialInstances){
                materialInstance.setParameter("baseColorFactor", Colors.RgbaType.SRGB, 0.0f,0.0f,0.0f,0.0f);
   }

[arun4fms]

@romainguy Please do have a look into this. I just saw your few comments regarding blending mode but for materialInstances I haven't seen any option to set Bleningmode

[romainguy]

You need your gltf material to be defined as alpha blended. You can't override this at runtime after loading the gltf. You can however provide an override during loading.

[arun4fms]

@romainguy how can i provide an override during loading