3Ds Max - HSDS
HSDS
The HSDS modifier implements hierarchical subdivision surface. it is intended primarily as a finishing tool rather than as a modeling tool. For best results, perform most of your modeling using low-polygon methods, and then use HSDS to add detail and adaptively refine the model.
Step1: First of all, create a cylinder then click on modify tab and select hsds tool.
Fig.44
Step2: click on the edge option of hsds parametric.
Fig.45
Step3: click on subdivide button
Fig.46
Step4: click on move tool then again click on Z-axis and drag Z-axis.
Fig.47
Step5: After that, click on scale tool then click on scale icon and drag down side.
Fig.48