1. Drag the DecalConstructor blueprint into your level. All settings for the selected DecalConstructor actor are in the Details panel.
2. DecalConstructor actor will be oriented automatically. If you don't need it, disable AutoOrientation and then rotate the actor. If AutoOrientation is enabled, you can rotate the decal using the Rotation parameter.
3. Set the texture resolution using the TextureSizeX and TextureSizeY parameters. The aspect ratio will be set automatically.
4. Set the decal size using the DecalAreaWidth parameter.
5. Add and customize text, images, shapes, and effects using the appropriate options.
6. Click the Bake and Convert button. The DecalConstructor actor will be removed and the Decal or StaticMesh actor will be created instead. Three textures will be saved to ../Content/DecalConstructorBaked/Textures/[level name]/[decal constructor actor name]/. One material instance will be saved to ../Content/DecalConstructorBaked/Materials/[level name]/.
Important Notes
Requires the Editor Scripting Utilities plugin (enabled by default in Unreal Engine 5.0 and later).
The DecalConstructor is only for use in the editor, in a packaged game there will be no DecalConstructor actors. You can bake all DecalConstructors in a level using the Convert All button.
DecalConstructor actors may not display properly after loading a level. To fix this, please select any DecalConstructor actor and click the Refresh All button in the Details panel.