brulgo I can attach a shader to a Sprite2D with no problem. But when I attach a shader to a billboarded Sprite3D I get no effect. How do I apply a canvas_item shader to a Sprite3D?
xyz brulgo Canvas item shaders will generally run only on canvas items. 3D objects, including billboarded sprites will ignore them. You can either rewrite your shader as a standard/spatial shader or render your canvas item in a custom viewport and use the viewport texture on the 3D sprite.