Vector Warp (Grayscale)

In: Filters/Effects

Complex

Description

Vector warp is an advanced distortion effect, similar to Warp and Directional Warp, with the main difference being that it is driven by a (color) vector bitmap rather than a grayscale map. This means it is more powerful and versatile than its atomic node cousins.

The Vector Map is similar to a Normalmap, but it does not need to be normalised and only the R and Green (X and Y) channel are used. Blue and Alpha channels can be left black if you want. Constructing a good Vector Map can be the biggest challenge in using this node; you can either convert grayscale maps to Normal, or construct the map by combining channels with RGBA Merge. Alternatively, something like a "Flow Map" is also useable.

This node can be useful when you want to do very specific distortions with varying directions, where standard Warp nodes don't cut it.

Parameters

Inputs

• Input: Color Input 
  Map to distort.
• Vector Map: Color Input 
  Distortion driver map. Color channels Red and Blue are used.

Parameters

• Intensity: 0.0 - 1.0
  Intensity multiplier for the Vector Map.
• Vector Format: DirectX, OpenGL
  Swaps the Green channel between Up and Down interpretation.

Example Images