Lukich Posted September 30, 2003 Share Posted September 30, 2003 Hi. I'm trying to figure out how does the attribute SOP work. I have a particle system, where the color of the particles change over time. I'm trying to use the Cd attribute, change it to, say, "scale" and make the geometry change size over time based on the value of Cd. However, when I do either Create Attribute or try to rename the attribute, it doesn't work. Copy SOP still sees Cd and changes the color of geometry, but that's it. What to do? Quote Link to comment Share on other sites More sharing options...
AndrewVK Posted September 30, 2003 Share Posted September 30, 2003 Turn off "Transform Commulative" and use point expression in copy scale field sx: point("../pop1", $PT, "Cd", 0) sy: point("../pop1", $PT, "Cd", 1) sz: point("../pop1", $PT, "Cd", 2) Quote Link to comment Share on other sites More sharing options...
anakin78z Posted September 30, 2003 Share Posted September 30, 2003 or.... append a point sop to your pop sop, set color to no color, and set pscale to $CR. Now the copy sop should behave as expected. -Jens Quote Link to comment Share on other sites More sharing options...
Lukich Posted October 1, 2003 Author Share Posted October 1, 2003 Thank you, guys! I tried both ways and both times learned something new! Quote Link to comment Share on other sites More sharing options...
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