a 2D image or texture map applied to an object in a computer rendering, like a label on a bottle
A texture that is rendered directly, as a visual. Decals are rendered into a viewport-aligned rectangle.
popupid: decal](Mapping) A static image that is placed onto a brush surface using the infodecal entity. Often used for minor 2D surface detail such as bulletholes, blood, scorch marks, etc. See Also: Half-Life Entity Guide: infodecal.