there are 20 summer and 20 winter picea engelmannii trees in this package. trees have vertex color data for wind animations and material variations. also there is sample scene for wind animation with modifiers by using vertex color. no plugin or script needed for wind.
trees heights are 6-20 meters summer trees are between 137k to 552k polygons winter trees are between 411k to 1.435k polygons
fbx format have vertex color data too. leaves diffuses can mix by vertex color for old and young pines. also can apply basic wind with modifiers using vertex color.