I was the main artist on
Souvenir and did the bulk of environmental modeling / level design / art effects. The cypress tree and archway were one of the very first things I made.
Back in September, we realized that if there were any limits on what Souvenir would look like, it would probably reflect my own personal limits as a novice 3D hard surface modeler, as well as my partners Ben and Mohini who weren't incredibly experienced artists either. (Know thyself!... and judge others, I suppose, too.)
We needed an art style that would emphasize simpler forms with very little surface detail, and we made a very early decision to pursue a papercraft / untextured color direction. Otherwise, the UV mapping required would be time-consuming and cost prohibitive and wouldn't really look good anyway because I'm not a great painter. There were also huge performance gains in using just one small palette texture for virtually every environment mesh in the game; that means Unity can batch all the polys efficiently and reduce overall draw calls.
Our early experiments with the mechanic indicated that falling / shifting over long distances felt good... Which meant that our final game world had to be huge, and that most of the world would be experienced from afar as silhouettes and shapes. (Again, our mechanics suggested that
investing in surface detail was pointless.)