Hi Yoshi and Benjy -
Apologies for the delay. We’ve been very heads down trying to make a deadline, so I didn’t have a chance to respond.
I’ll try to distill all the questions in your posts down to this one, to hopefully get them answered.
First, the CalculateStereoViewOffset() function is what changes the distance between the virtual cameras in the engine automatically. In the default implementation in the FFakeStereoRenderingDevice, you can modify the “EyeOffset” variable. That’s half the IPD of the user. The default in there is 3.2, which implies a virtual IPD of 6.4 cm. Changing that will change the separation, and the amount of parallax you see.