Changing GUIText.font on runtime

So i realy try hard to find a solution for this and dont understand why this failure happens.

I creating a GUIText and add it to a GameObjekt.

On each Update i calculate the distance between the GO and the camera, and based to this distance i change my font of the GUIText.

Im using 10 different and added all to a List

GameObject label = new GameObject("label"); // Gui Text GUIText guiT = label.AddComponent<GUIText>(); // I stored all my Fonts in a List in another class so do not // wonder where it got instantiatet guiT.font = FontAssets.univerRoman[0]; guiT.material.color = new Color(1.0f, 1.0f, 1.0f); guiT.text = "name";

 int scale = Mathf.FloorToInt((99 - _distanceToCamera)/10);
 guiT.font = FontAssets.univerRoman[scale];

All my text got realy messed up, and it looks like the size of the texture the text is rendered on is the wrong size.

EDIT: So after spending several hours with no real result i tryed 3dtext, and instantiate it in this way.

GameObject _label3d = new GameObject("label3d"); TextMesh _guiT3D = _label3d.AddComponent<TextMesh>(); MeshRenderer _ren = _label3d.AddComponent<MeshRenderer>();

And still i have the same result. The scale of the Text material does not fit tothe scale of the textSize.