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Vertex weighting via Xpresso question

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I'm trying to control a vertex weight map over time via xpresso.

Initially all points should have a weight of zero, then each point has it's wight set to one over time. 


The problem is all points are being set except for point zero. Which seems to have a weight of 100% 

I've attached some screen shots and the scene file. 

Any suggestions would be much appreciated.



Vertex Map-Point Iteration.c4d

Screen Shot 2018-11-09 at 17.43.47.png

Screen Shot 2018-11-09 at 17.43.47 (2).png

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  • Thank you so much HSredelic, I've been trying to crack this for a while now. 

    The only thing I don't understand is the need to subtract 1 from the frame node? I thought it gave the current frame, which should be zero, and so give condition node false or zero as a result.


    Could yo explain how you came up with that idea please? 


    Thanks again for all you r help.

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