* Set the exp height fog color of the scene using a vector of 3 values for the color (RGB) in a template stream function.
* Assign a value to exp height fog color using world.setExpHeightFogColor(vector3) or world.setExpHeightFogColor!"="(vector3).
* Increment exp height fog color by value using world.setExpHeightFogColor!"+="(vector3).
* Decrement exp height fog color by value using world.setExpHeightFogColor!"-="(vector3).
* Multiply exp height fog color by value using world.setExpHeightFogColor!"*="(vector3).
* Divide exp height fog color by value using world.setExpHeightFogColor!"/="(vector3).
* Returns reference to this so it can be used in a stream.
* Set the exp height fog color of the scene using a vector of 3 values for the color (RGB) in a template stream function. * Assign a value to exp height fog color using world.setExpHeightFogColor(vector3) or world.setExpHeightFogColor!"="(vector3). * Increment exp height fog color by value using world.setExpHeightFogColor!"+="(vector3). * Decrement exp height fog color by value using world.setExpHeightFogColor!"-="(vector3). * Multiply exp height fog color by value using world.setExpHeightFogColor!"*="(vector3). * Divide exp height fog color by value using world.setExpHeightFogColor!"/="(vector3). * Returns reference to this so it can be used in a stream.