Surface is a definition of surface type which contains material, set of meshes and other objects. Surfaces are used for painting and object creation by means of brush.
To create a surface it is easier to make a copy of an existing example, it is located in 'Samples\Starter Content\Models\Ribbon Grass\Ribbon Grass.surface'.
A surface consists of groups of elements, groups, for its part, include elements. The element indicates the probability of the element getting when painting with a brush, and other settings.
At the moment, the surface may contain only 3D models; support for other types of objects will be added in the future.
Surface Area is used to automatically fill with a large number of objects in a given area.
|Probability||The probability of choosing this group of elements from others when drawing.|
|Min Distance Between Objects||The minimum distance between objects when drawing.|
|Position ZRange||The range of possible Z-axis object position displacements when drawing.|
|Rotate Around Its Axis||Whether to set the random value of the object rotation around its axis when drawing.|
|Max Incline||The maximum angle of the object.|
|Scale Range||The range of possible scaling of the object when drawing.|
|Probability||The probability of choosing this element from others when drawing.|
|Mesh||The mesh used by the element.|
|Replace Material||Replaces all geometries of the mesh by another material.|
|Visibility Distance||Maximum visibility range of the object.|
|Cast Shadows||Whether to cast shadows on the other surfaces.|
|Receive Decals||Whether it is possible to apply decals the surface.|