6. dev2ray

Point and direction of the light ray at a given pixel

[h,b] = dev2ray(dev)
[h,b] = dev2ray(dev,idx)
[h,b] = dev2ray(dev,idx,unit)

Inputs / outputs

• dev = 2xNxK Points on the device surface at K poses.
• idx = Index of the pose to be used (dev must be 2xN).
• unit = true|false; Specify if the direction vectors are normalized.


• h = 2xNxK Reference point of the light rays.
• b = 2xNxK Direction vectors of the light rays.