p.addVertex(vertexes[0], c);
p.addVertex(vertexes[1], c);
p.addVertex(vertexes[2], c);
p.addVertex(vertexes[3], c);
} else {
p.addVertex(vertexes[0], c, new N3TexCoord2D(0, 0));
p.addVertex(vertexes[1], c, new N3TexCoord2D(1, 0));
p.addVertex(vertexes[2], c, new N3TexCoord2D(1, 1));
p.addVertex(vertexes[3], c, new N3TexCoord2D(0, 1));
}
p.generateNormal();
return mesh;