The 21st century sees more and more composers turning to animation and machinima to realize their grand projects. For example, take this space opera by composer Richard deCosta which uses machinima (animation created using video games and virtual puppets and shot in real time) to create a compelling space opera!
“K’ai, Death of Dreams is a 3d space opera. That is, an opera in 3d with a sci-fi theme. Singing aliens, too.”