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houdini parameter expressions


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point(0,0,"speed",0) 

Which mean: use first input, look at point 0, look at the speed attribute, look at the first index of this attribute, (there is only one because it is a float).

Of course, if the speed varied and you wanted the average or something, you could attribute promote to a detail set to average, then use the detail expression instead of the point expression.

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On 2023. 1. 14. at 오후 6시 33분, maiden666 said:

앰프 채널로:
prim('../name_of_node', @primnum, 'speed', index(0 if Float))

tnx!!!!!!!!! perpect !!! happy new year~

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