I use this code:
Object3D obj = new Object3D(2);
float x = 64;
float y = 128;
SimpleVector s1 = new SimpleVector(-x/2,y/2,0);
SimpleVector s2 = new SimpleVector(-x/2,-y/2,0);
SimpleVector s3 = new SimpleVector(x/2,-y/2,0);
SimpleVector s4 = new SimpleVector(x/2,y/2,0);
obj.addTriangle(s1,s2,s3);
obj.addTriangle(s1,s3,s4);
and set texture , but see nothing ~~~
what's wrong ?