====== vector3f ======

===== Description =====

''vector3f'' is structure used to describe a 3-dimensional vector in floating-point precision.  This data type is more precise than [[zeolite:types:vector3c]] but is less compact. Therefore, ''vector3f'' is used for several calculation settings (for greater accuracy), but is //not// used in vector map data (for space reasons).

Vectors may or may not be normalised.


===== Definition =====

//In Zeolite_defines.h: //

<code="C">
typedef struct {
  float x;
  float y;
  float z;
} vector3f;
</code>


===== Member data =====

^ Member name ^ Type ^ Comments ^
|  //x//  | float | The vector component in the x-axis. |
|  //y//  | float | The vector component in the y-axis. |
|  //z//  | float | The vector component in the z-axis. |


===== Type identifiers =====

^ [[zeolite:VarID]] | VarID_vector3f |
^ [[zeolite:MapID]] | N/A (vector3f is not a valid map type.) |

===== Comments =====

Although the vector components are named //x//, //y// and //z//, these members may be used to describe any 3-dimensional vector. As an example, the light-mapping algorithm in L3DT uses a ''vector3f'' struct to describe light absorption, and the three members represent the absorption half-depths of red, green and blue light.