I have a question about the 3D camera setup.
I want to put the camera behind the scene and look at 0, 0, 0.
s3d.camera.pos.set(0, 0, 5); s3d.camera.target.set(0, 0, 0);
Now the camera is behind the scene like I wanted, but the view is horizontally rotated about 90 degrees.
Then I tried
s3d.camera.up.set(0, 1, 0);
Now the camera is not rotated and it looks all right, but now the x axis is flipped (-x).
When I move a box with x += 0.01, then the box moves to the left instead to the right.
How should I set up the camera to look from behind (-z) to front without rotation and without flipping the x axis?