Notch Reference Manual

Water Ripples

Method

This node simulates water movements across an image based on an input field using a spring-based water solver.

Raw texture Processed texture
Example Nodegraph

Attributes

Name Description
Active Turn the effect on or off. Values < 0.1 will turn the effect off, and deferred rendering must be on.
Blend Amount Changes the opacity of the new effect over the original image.
Blend Mode (RGB) Change how the generated effect blends with the parent image RGB.
Blend Mode (Alpha) Change how the generated effect blends with the parent image alpha.
Simulation Speed Control the speed at which the warp is animated.
Speed The speed of the ripples as the move over the image.
Length The distance between springs. Larger values make the ripples move faster.
Displacement Scale Scale the displacement the water ripples simulate.
Velocity Dampening Controls how much the velocities are dampened over time.
Brightness Controls the brightness of the ripple displacements composited over the image so they can be seen, giving a lighting effect.
Trigger Source Channel Choose what triggers and affects ripples.
Simulation Width The width of the grid used for the simulation, in cells.
Simulation Height The height of the grid used for the simulation, in cells.

Affect Channels

Select which of the RGBA colour channels are affected by the effect.

Inputs

Name Description Typical Node Input
Source Field Input a field root node to affect the image. Field Root
Collision Image Adds further locations for the ripples to collide with. Image Plane
Active Turn the effect on or off. Values < 0.1 will turn the effect off, and deferred rendering must be on. Envelope Modifier

Outputs

There are no outputs from this node.

Notes