原点自旋转 translate Rotate
非原点绕原点旋转 Transform Rotate
非原点自旋转 Transform Transform
使用vex 进行旋转 matrix m = ident(); rotate(m,@Frame,2); @P*=m;
vector c = getbbox_center(0); vector r = set(0,@Frame,0); matrix m = maketransform(0,0,0,r,1,c);
@P*=m;
4@m = ident(); f@d = distance(@P,(0,0,0));f@s = chramp('speed',@d);rotate(@m,@s*@Time,2);
@P*=@m;
4@m = ident(); f@d = distance(@P,(0,0,0));f@s = chramp('speed',@d/2.4);rotate(@m,@s*@Time,2);
@P*=@m;