This is a resource pack that replace the shield model with a custom one made by me with blockbench. It's fully compatible with banners and their decorations.
For Forge it requires Optifine.
For Fabric it requires Entity Textures Features (ETF) and Entity Model Features (EMF).
Every model and textures of this resource pack was made by me, but if you want to include this model on a custom resource pack you don't need to give any credits.