HoverKit look alike

[macandili09]

Hi guys good day. I have just one question. How can i detect my left hand or right is flipped so that i'll just enable the canvas in my hand using the UI module. I really want to make a Hoverkit so that my game will be like SAO anime . Please help me guys . I just need it badly.

[Joe_Ward]

Why not use HoverKit itself?

[macandili09]

I don't know how to use it sir . That is why in alternative i just used the palm direction + UI module so that i can have the hoverkit look a like.

[zachkinstner]

Hi @macandili09, to determine if the palm is facing toward the camera, the "Hovercast" module (part of Hover UI Kit) compares the hand's palm normal to the palm-to-camera direction. You can perform a dot product between these two directions to determine an angle, and display your canvas content whenever that angle is less than some threshold (say, 30 degrees).

Regarding not knowing how to use Hover UI Kit, you can find several instructions and examples on the project's "Getting Started" wiki pages: https://github.com/aestheticinteractive/Hover-UI-Kit/wiki/Getting-Started

[ling9366]

Hi @zachkinstner, does HoverCast also apply to the leapmotion on the desk?

[zachkinstner]

Hi @ling9366, yes, you can operate Hovercast (or any of the Hover UI Kit buttons/interfaces) using a table-mounted Leap Motion Controller, but the hand tracking is generally better from the head-mounted position.

For the Hovercast interface specifically, the palm-towards-eyes pose is difficult for a table-mounted Leap to track, since the Leap will mostly see a side-on view of the hand. There is a Hovercast component/property that allows you to adjust this angle/direction (which determines whether the interface is visible) in a way that allows the palm to face more towards your chin/chest. This allows the table-mounted Leap to see more of the hand, and thus it can provide more reliable tracking.