Returns a reference to a source module connected to this noise
module.
@param index The index value assigned to the source module.
@returns A reference to the source module.
@pre The index value ranges from 0 to one less than the number of
source modules required by this noise module.
@pre A source module with the specified index value has been added
to this noise module via a call to SetSourceMod().
@throw new noise::ExceptionNoMod See the preconditions for more
information.
Each noise module requires the attachment of a certain number of
source modules before an application can call the GetValue()
method.
Returns a reference to a source module connected to this noise module.
@param index The index value assigned to the source module.
@returns A reference to the source module.
@pre The index value ranges from 0 to one less than the number of source modules required by this noise module. @pre A source module with the specified index value has been added to this noise module via a call to SetSourceMod().
@throw new noise::ExceptionNoMod See the preconditions for more information.
Each noise module requires the attachment of a certain number of source modules before an application can call the GetValue() method.