WASD to move, EQ for up and down and arrows for camera movement. Third project in the 3D engine series. This one includes capability for importing OBJ models. Go check all the projects in the studio: You start inside the model, move to go outside. I will add capability for making them object-like, with their own position, rotation and scale.
Thanks to @CodingBio for the originial 3D project. The rest is all me. Go check his studio with the 3D series: https://scratch.mit.edu/studios/32152322/