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Making gaze visible like a laser
I have a shared experience between 2 HoloLens. I want both users to see where they are looking at in the virtual world. Is it possible to make the raycast visible like a laser coming out from avatar.
(Something like the laser coming from the Infinity stone from Vision's forehead in Avengers)
Best Answer
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timg
mod
Take a look at Unity's LineRenderer. Using the remote head, start the line at the remote head's position and draw it in the direction of its forward vector. The endpoint of the line would be the point from a Raycast using those same parameters.
Some things to consider:
1) don't render the gaze vector for the current (local) user; use a cursor instead. It is super uncomfortable to see a line drawn in this way from your own head.
2) consider techniques to avoid the remote user pointing his laser in the other user's eyes. You could create a capsule collider around each user and if the raycast intersects with that collider, don't render the gaze vector line.5
Answers
Take a look at Unity's LineRenderer. Using the remote head, start the line at the remote head's position and draw it in the direction of its forward vector. The endpoint of the line would be the point from a Raycast using those same parameters.
Some things to consider:
1) don't render the gaze vector for the current (local) user; use a cursor instead. It is super uncomfortable to see a line drawn in this way from your own head.
2) consider techniques to avoid the remote user pointing his laser in the other user's eyes. You could create a capsule collider around each user and if the raycast intersects with that collider, don't render the gaze vector line.
Thank you, @timg
That's great help 