vtkOpenGLTexture::ResampleToPowerOfTwo doesn't support size of 1
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
If the height (or width) of a texture is 1px, the closest power of 2 is naturally 1, however, hy (or hx) is set to -1.#IND000000. (vtkOpenGLTexture.cxx:576)