3DのWebExportは制限が多くて苦労するかもです！
Webだと必然的にCompatibilityレンダラーになるので表現が難しいですね〜
Web用に絞って制作するなら良いのですが。
Godotの3Dなら、モデルインポート時のシーンに前処理、後処理ができるEditorScenePostImportPluginがおすすめ機能です。

store-beta.godotengine.org okay 👍

modulateはSprite2Dの継承元のCanvasItemのプロパティなのでCanvasItemのところにありますが、これのことですか？

I bought it. Thank you!
I'm checking this addon in a test project.
I'm relieved that it works. It would be even better if there was a sample project.
It seems that the function name before the rename remains in paper_complex_shader.gdshader.
scaleUVWithAlbedoModifiers
Sorry for automatic translation

Thanks! I'm making this with a 2D illustrator, so it's a two-person team.
All the character models are handmade by us.
For the map models, we're using a mix of modified assets and some custom-made elements...

I forgot to attach the video...

Thank you so much! 😊
This horned maid character is a demon who serves as the player's strategic advisor.
It's planned to be a tower offense game where you become the commander of monster girls and battle for territory.