A sprite is an entity just like
a pivot is an entity,
a mesh is an entity,
a camera is an entity,
a light is an entity.
They are all entities, but they all have special 'abilities'.
All entities can be manipulated in 3D space (moved, scaled, rotated, hidden, parented to another entity, etc.).
But,
Pivots have no mesh attached.
Meshes are made up of polygons.
Cameras can render scenes.
Lights can light up other entities.
Sprites are flat meshes (made up of only two polygons) that can be directed to always face the camera or always face the camera and stay oriented 'upright'.
Sprites are generally used for Heads Up Displays or signs or 2D trees. You can even place a sprite directly in front of the camera to display 2D images (like loading, paused or option screens).
a pivot is an entity,
a mesh is an entity,
a camera is an entity,
a light is an entity.
They are all entities, but they all have special 'abilities'.
All entities can be manipulated in 3D space (moved, scaled, rotated, hidden, parented to another entity, etc.).
But,
Pivots have no mesh attached.
Meshes are made up of polygons.
Cameras can render scenes.
Lights can light up other entities.
Sprites are flat meshes (made up of only two polygons) that can be directed to always face the camera or always face the camera and stay oriented 'upright'.
Sprites are generally used for Heads Up Displays or signs or 2D trees. You can even place a sprite directly in front of the camera to display 2D images (like loading, paused or option screens).