Agents can feel Maya field directly without any additional setup.
Red arrows are the directions of field and the blue arrow is the Z-axis of agent
Similar the road.ox, the field.ox channel will return the angle between agent Z-axis and the field direction of agent position in horizontal space. In the following example, the channel will return result α = 25, β = -65 and γ = -110 respectively, for agent A, B and C.
Arbitrary Maya field and field.ox channel example
The field.ox is dealing with horizontal space whereas the field.oy is dealing with the vertical space
The field.a channel can return the Maya field amplitude from the agent position.