Debug asset bundle converter issues with transparent materials

[pravusjif]

Many times we see assets that are not converted because they use transparency in their materials and the converted asset is invisible.

One specific example that could be used to debug is this wearable asset that can be converted with the scenes conversion pipeline locally:

• asset HASH QmZ25Gm77SmZ8g21YKVRPCkyemb4JvTqWFbgyhyg99deJL
• Local conversion /Applications/Unity/Hub/Editor/2020.3.0f1/Unity.app/Contents/MacOS/Unity -batchmode -projectPath "/Users/pravus/git/unity-renderer/unity-renderer" -batchmode -executeMethod DCL.ABConverter.SceneClient.ExportSceneToAssetBundles -sceneCid "QmZ25Gm77SmZ8g21YKVRPCkyemb4JvTqWFbgyhyg99deJL" -output "/Users/pravus/git/unity-renderer/unity-renderer/AssetBundles" -logFile "/Users/pravus/Desktop/scene-conversion.log" -verbose

GLTF

Asset Bundle and the Diff generated by the visual tests system

This also happens with the "beer mugs" at Genesis Plaza, if you convert that scene locally you will see the same issue