this.getSketch().getSketchShapes().sketchOutlines
.getOutterOutline().optimizeForCollision();
ArrayList loop = this.getSketch().getSketchShapes().sketchOutlines
.getOutterOutline().getVector2DLoop();
Delaunay triangulate = new Delaunay();
if (loop == null || loop.size() < 3)
return null;
triangulate.triangulate_main(loop);
int vertNum = triangulate.vertexs.size() * 3;
float[] gVertices = new float[vertNum];
for (int i = 0; i < triangulate.vertexs.size(); i++) {