Is there a way to fix the scale, angle, direction and size of a label?

I want write text on a 3D Model, now that could only fix my label at one end and when i zoom out it stays right in the place and sizesup.

You could put your text into an image, and then load that as a material on the model or on a polygon on the model.

If that doesn’t work, can you share a Sandcastle code example I can run of what you’ve got or a screenshot of what you’re trying to do?