"Boy, are there visual effects. But in service of reality. If Cavill was ever on wires, it was only for body position. Snyder's philosophy was that Superman cannot do anything that is not a visual effect. For his superpowers to appear natural, they had to be digitally created. No strings attached."
Originally Posted by ThePowerCosmic
Not really... Snyder said that the fight/flight scenes would be CGI.
Reading it again, that could be taken a bunch of different ways. Guess we'll see.