cgGetStateAssignmentIndex(3)

NAME
cgGetStateAssignmentIndex - get the array index of a state assignment for array-valued state

SYNOPSIS
  #include <Cg/cg.h>
  int cgGetStateAssignmentIndex( CGstateassignment sa );

PARAMETERS
The state assignment.

RETURN VALUES
Returns an integer index value.

Returns 0 if the CGstate for this state assignment is not an array type.

DESCRIPTION
cgGetStateAssignmentIndex returns the array index of a state assignment if the state it is based on is an array type.

EXAMPLES
Given a "LightPosition" state defined as an array of eight float3 values and an effect file with the following state assignment:

   pass { LightPosition[3] = float3(10,0,0); }
cgGetStateAssignmentIndex will return 3 when passed a handle to this state assignment.

ERRORS
CG_INVALID_STATE_ASSIGNMENT_HANDLE_ERROR is generated if sa is not a valid state assignment.

HISTORY
cgGetStateAssignmentIndex was introduced in Cg 1.4.

SEE ALSO
cgIsStateAssignment, cgCreateStateAssignmentIndex