Hi, has any body tried visualize angio data using vtkVolumeRayCastMIPFunction class. i tries a lot but not expected result i mean vesseles. can anybody help me? can any body tell me what should be transfer functions to view vessels in Angio data thanks _______________________________________________________________________ Odomos - the only mosquito protection outside 4 walls - Click here to know more! http://r.rediff.com/r?http://clients.rediff.com/odomos/Odomos.htm&&odomos&&wn