The Flare tool combines the Push tool with a Linear Falloff. The result is the quick ability to "flare" out a specific portion of the mesh using the linear falloff as the modulator.
Distance: The actual amount each vertex is moved out away from its original position. The vertex will be moved directly along its own normal. This value can be positive or negative.
Linear Falloff
Start XYZ: This triplet value sets a 3D position for the beginning of the linear falloff. At this position the falloff value is set to 0. All vertices at this side of the falloff receive no effect from the tool.
End XYZ: This triplet value sets a 3D position for the end of the linear falloff. At this position the falloff value is set to 100. All vertices at this side of the falloff receive 100% effect from the tool.
Auto Size: This option button will snap the linear falloff to the chosen axis and scale it to match the selected geometry.
Reverse: Clicking this option will swap the Start and End values effectively flipping the falloff.
