I'm trying to convert a BMP file to DDS on DDS Converter 2, by Yannick Leon, but every time the conversion fails. It says "Error: [file name.bmp] size = not a power of 2". What does this mean, and how can I fix it?
It could be 1 pixel tall but 1024 pixels wide for example with every pixel colored differently (and such textures could be used for Celestia type planetary rings).