The camera image when captured through Vuforia is cropped compared to an image taken from the same vantage point through the system camera app; that crop factor appears to be nearly identical to what would happen when the 4:3 image is cropped to 16:9, then cropped again back to 4:3 when running on iPad (our target platform). This is fairly unfortunate; presumably Vuforia is requesting a 16:9 format image from the camera, and then cropping it again to fill the screen.
Is it possible to set Vuforia to request a different resolution from the camera, ideally with an aspect that matches the display? Or, barring that, in the app we're developing we are fine with getting a "letterbox" effect (as that area is covered over by our own UI anyway) and we just need as much horizontal resolution as possible; can we configure Vuforia to shrink-to-fit the image (with letterboxing) rather than crop-to-fit?
Thanks.
Okay, so, I did figure out
Okay, so, I did figure out how to configure letterboxing, by changing the camera's viewport (instead of being 1x1 it is now 1x0.75 with a Y offset of 0.125, which simulates letterboxing a 16:9 image to 4:3).