问使用isgl3D时，3D对象中的纹理贴图(.pod)不能正确执行

EN

_cameraController = [[Isgl3dDemoCameraController alloc] initWithCamera:self.camera andView:self];
_cameraController.orbit = 10;
_cameraController.theta = 20;
_cameraController.phi = 0;
_cameraController.doubleTapEnabled = NO;


Isgl3dPODImporter * podImporter = [Isgl3dPODImporter podImporterWithFile:@"iPhone5Spod.pod"];
[podImporter printPODInfo];
[podImporter buildSceneObjects];


Isgl3dTextureMaterial *material2 = [[[Isgl3dTextureMaterial alloc] 
                                         initWithTextureFile:@"DiffuseBody2.jpg"  
                                         shininess:0.0  
                                         precision:Isgl3dTexturePrecisionHigh  
                                         repeatX:YES  
                                         repeatY:YES] autorelease];


mesh2 = [podImporter meshAtIndex:4];
node2 = [self.scene createNodeWithMesh: mesh2 andMaterial:material2];
mesh2.normalizationEnabled = YES;
node2.position = iv3(0, 0, 0);
node2.rotationY = 180;
[podImporter addMeshesToScene:self.scene];


Isgl3dLight * light  = [Isgl3dLight lightWithHexColor:@"FFFFFF" diffuseColor:@"FFFFFF" specularColor:@"FFFFFF" attenuation:0.000];
light.lightType = DirectionalLight;
[light setDirection:-1 y:-1 z:0];


[self setSceneAmbient:[Isgl3dColorUtil rgbString:[podImporter ambientColor]]];
[self schedule:@selector(tick:)];