poppoint expression function

Returns the value of a particle attribute, by particle number.

See also: poppointid

You should only use this function in a particle node.

index is the component number (0, 0 to 3, or 0-4, depending on the datatype of the attribute) to read if the attribute is a vector or vector4. For floats, the index argument is ignored (just use 0). For example, for a color value, 0 means red, 1 means green, and 2 means blue. To read the all three (red, green, and blue) components, you would need to call the function three times with 0, 1, and 2 as the values for index.