fruela

How can I modify the points of a curve without changing the length of the curve? There is a digital asset, called Curve Control to control the shape of a curve but it modifies the length.

How can I add a Z channel in a mantra render? I want to use the image for a composition work (depth of field).

And how can I do it with 3 Delight?

I have been proving some software to do hair. And I have seen that the function COMB in others programs it works different that in Houdini. I Houdini I can control the growing hair with COMB but in other programs I can edit long hair. For example in Blender the comb function act like this. In XSI, Cinema3D, JoeAlter it is very similar to Blender too.

http://users.utu.fi/jhkarh/prog/particles/edit_teaser.swf [users.utu.fi]

Which way is the equivalent in Houdini to do the same?