dF/dV node

Access: Nodes > Math > dF/dV

Outputs the rate of change of the input with respect to the V texture coordinate. Useful for anisotropic shading effects (such as hair strands or brushed metals).

Note:  This node will not work for displacement (it is fragment shader only).

Input (RGB)	Output (RGB)
Uniformly mapped UVs with constant Input color	0.0, 0.0, 0.0
Vertical ramp over 1 unit of V	1.0, 1.0, 1.0 per unit V
V coordinates compressed (2x scale) with standard ramp	2.0, 2.0, 2.0

dF/dV node inputs

UV	Texture coordinate map.
Input	The signal to differentiate relative to V.

dF/dV node outputs

Output

The partial derivative of the input signal along the V texture axis.