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use partition to grp different primitive(face) in geometry
use connectivity and partition to separate geometry
also can use connectivity
use assemble node to separate 2 different geometry
multiply the color vector with noise vector to get the middle deform
multipy z-axis and x-axis color together
use obj point max min distance calculate gradient
only displace the middle of the geo
foreach:内部使用物体编号,只能使用索引名(外面的index stamp name(索引:循环物体的编号))。