Look At object with Falloff
Look At object with Falloff allows you to rotate items to look at a specified object and additionally specify a falloff range so that only items within a certain radius of the object are affected. To use it.
- Use the Effects > lookAt parameter to pick the look at target from the scene.
- Use the Effects > falloffDistance parameter to specify the falloff for the look at effect.
Effect Script:
vector v = Lookat.Position - fpItem.Position; fpItem.rotation.z = easein(length(v),falloffDistance,0,fpItem.rotation.z, -atan2(v.x, v.y));
You can find this Effect within the Forest Effects Library.
This Effect Uses:
Parameters
- falloffDistance
Type: Scene Units - lookAt
Type: Object
Attributes
- fpItem.position
Minimum Z rotation as set in the Transform rollout. - fpItem.rotation.z
Rotation of Forest Item on Z axis in local coordinates.
Functions
- easeIn(x,x1,x2,y1,y2)
Returns an ease-in interpolation between y1 and y2. Returns y1 when x < x1. - length(v)
The length of v. - atan2(x,y)
Returns the principal value of the arc tangent of y/x, expressed in radians