I noticed that screen-space canvases don't display correctly due to some non-default values in the camera projection matrix that is set by ARCoreBackgroundRenderer. Specifically, it is m02 and m12 values of the projection matrix. As I discovered these values are responsible for yaw and pitch (thanks to xdpixel article 'decoding-a-projection-matrix' ). I could zero them to fix this issue without any noticeable difference. But I'm asking myself why are these values present in the projection matrix? Is it safe to zero them?
Zumbalamambo
commented
4 years ago
I noticed that screen-space canvases don't display correctly due to some non-default values in the camera projection matrix that is set by ARCoreBackgroundRenderer. Specifically, it is m02 and m12 values of the projection matrix. As I discovered these values are responsible for yaw and pitch (thanks to xdpixel article 'decoding-a-projection-matrix' ). I could zero them to fix this issue without any noticeable difference. But I'm asking myself why are these values present in the projection matrix? Is it safe to zero them?