Unity-based seamless decal creation method and tool

The invention discloses a Unity-based seamless decal creation method. The method comprises the following steps: obtaining a list of all sampling points for generating a grid shape; constructing a bounding box by utilizing the list of the sampling points; generating a projection point list formed based on the bounding box and a corresponding triangular index; segmenting the projection point list toobtain a segmented projection point list and a corresponding triangular index; projecting the segmented projection point list to a scene to obtain a projected point list; calculating a UV value corresponding to the projected point list; constructing a gravity center coordinate system, and calculating an Alpha value corresponding to the projected point list; respectively adding the projected pointlist, the UV value and the Alpha value corresponding to the projected point list, and the triangular index corresponding to the segmented projection point list into a list for constructing a grid; exiting the calculation of t