I think I understand what royalty free means, but am not 100% sure.
Would a royalty free image allow for any of the following:
Sell a game that uses the image in the game?
Use the image to make a new image, and sell the new image? (For example if I bought a royalty free photo of a castle, and made a scene with the castle on fire being attack by orcs; could I resell that new image?
Texture a 3d model with the image, and resell the model with the mapped texture?
Just curious.