- vtkClampHelper1<T>(iptr+1,optr+1,lower,upper,lower_val,upper_val,shift,scale);
- vtkClampHelper1<T>(iptr+2,optr+2,lower,upper,lower_val,upper_val,shift,scale);
+ vtkClampHelper1<T>(iptr+(1%numberOfComponents),optr+1,lower,upper,lower_val,upper_val,shift,scale);
+ vtkClampHelper1<T>(iptr+(2%numberOfComponents),optr+2,lower,upper,lower_val,upper_val,shift,scale);