wrongway

        SetTextureMipmap(texture, 0, bitmap);
                bitmap = bitmap.Resize(1024, 1024, WriteableBitmapExtensions.Interpolation.Bilinear);
                SetTextureMipmap(texture, 1, bitmap);
                bitmap = bitmap.Resize(512, 512, WriteableBitmapExtensions.Interpolation.Bilinear);
                SetTextureMipmap(texture, 2, bitmap);
                bitmap = bitmap.Resize(256, 256, WriteableBitmapExtensions.Interpolation.Bilinear);
                SetTextureMipmap(texture, 3, bitmap);
                bitmap = bitmap.Resize(128, 128, WriteableBitmapExtensions.Interpolation.Bilinear);
                SetTextureMipmap(texture, 4, bitmap);
                bitmap = bitmap.Resize(64, 64, WriteableBitmapExtensions.Interpolation.Bilinear);
                SetTextureMipmap(texture, 5, bitmap);
                bitmap = bitmap.Resize(32, 32, WriteableBitmapExtensions.Interpolation.Bilinear);
                SetTextureMipmap(texture, 6, bitmap);
                bitmap = bitmap.Resize(16, 16, WriteableBitmapExtensions.Interpolation.Bilinear);
                SetTextureMipmap(texture, 7, bitmap);
                bitmap = bitmap.Resize(8, 8, WriteableBitmapExtensions.Interpolation.Bilinear);
                SetTextureMipmap(texture, 8, bitmap);
                bitmap = bitmap.Resize(4, 4, WriteableBitmapExtensions.Interpolation.Bilinear);
                SetTextureMipmap(texture, 9, bitmap);
                bitmap = bitmap.Resize(2, 2, WriteableBitmapExtensions.Interpolation.Bilinear);
                SetTextureMipmap(texture, 10, bitmap);
                bitmap = bitmap.Resize(1, 1, WriteableBitmapExtensions.Interpolation.Bilinear);
                SetTextureMipmap(texture, 11, bitmap);