Houdini : SOP | Twist Keep Rotation

SOP | VEX Basic  [.hip file - 04_TwistKeepRot_01.hip ] in preoaration.
Use Copy Sop and Expression.

Houdini : SOP | VEX Basic 01

SOP | VEX Basic  [.hip file - 03_VEX_Basic01_.hip]
Use VEX in AttribWrangle SOP to make attribute and local attribute.

Houdini : ROP | NOT CROP EXR

H15になってデフォルトでEXRのクロップがされてしまうので、その解除のメモ。