代码创建GameObject报错：“Shader wants tangents, but the mesh doesn'...

gogomercury

错误为：

Shader wants tangents, but the mesh  doesn't have them


UnityEditor.DockArea:OnGUI()

我的代码为

MarkPictureObject = new GameObject();

MarkPictureObject.name = "MarkPicture";


MarkPictureObject.transform.parent = ThisGameObject.transform;


MarkPictureObject.transform.localScale = new Vector3(x,y,z);


MarkPictureObject.transform.localPosition = new Vector3(X, Y ,Z);

UISprite uisprite = MarkPictureObject.AddComponent<UISprite>();

uisprite.atlas = MyAtlas;

uisprite.spriteName = "MySprite";

尝试方法：
mesh.RecalculateNormals();

另外：
虽然有这个错误提示，但实际项目能正常运行。

may

提示这个shader需要Tangent,问题是mesh上面找不到?

我不再年轻

应该是mesh问题