Datamosh Effect Unreal Engine

Datamosh is a post process shader that creates a frames blending effect by simulating a video editing technique in which the footage is manipulated to look 'trippy' or 'glitchy,' usually by manual compression.

Demo

Jam2go's video about datamoshing in Unreal

Epic Marketplace

Documentation

Using engine classes, plugin injects the shader into the rendering pipeline, ensuring it is compatible with other post process effects after the default installation.

Technical details:

• Supported engine versions: 5.0, 5.1, 5.2, 5.3, 5.4.
• Built-in blueprint functions.
• Automatically applies on viewport camera on any scene.
• Console commands to adjust the effect parameters (noise type, noise intensity, effect intensity).
• Compatible with other post process effects.
• Does not support replication (temporarily).
• Small performance cost.
• If you want to use the feature of rendering the effect in Custom Depth, first - 
  enable Custom Depth-Stencil Pass - Enabled with Stencil in the project settings

Commands list:

r.Datamosh (1/0) - Toggle datamoshing effect;

r.Datamosh.Noise (0/1/2/3) - Select datamoshing noise preset;

• 0 - No noise;
• 1 - Pseudo-random cubic noise function; 
• 2 - Horizontal strip noise function;
• 3 - Jittering;
• 4 - Simplex2D Noise
• 5 - Cubic simplex2D

r.Datamosh.NoiseIntensity (float) - Intensity of the effect scaled by float;

r.Datamosh.Noise.PerBlockSize - Datamoshing noise size effect;

r.Datamosh.UseSceneDepth - Use scene depth pass for rendering the effect;

r.Datamosh.UseCustomDepth - Use custom depth pass for rendering the effect;

r.Datamosh.SetStencil (value, value, value, value) - Use this to set the stencil values for the effect when sampling in the custom depth;

r.Datamosh.ExcludeCustomDepth - Toggle effect rendering for objects in Custom Depth;

r.Datamosh.ClearStencil - Clear the stencil values and reset it to a single value of 0;

r.Datamosh.Factor (float) - Datamoshing alpha between current and previous frames, .99 by default;

r.Datamosh.Motion.x and y - Datamosh motion effect;

r.Datamosh.DepthDistance - Datamoshing depth buffer distance;

Performance

GPU	Average, ms
3060TI	0.11ms

Supported Development Platforms: Win64, Mac, Linux

Supported Target Build Platforms: Win64, Mac, Linux

Network Replicated: No (Temporarily)

Current Version: 0.3

Changelog:

0.1:

• Early access.

0.2:

• Full code refactoring.
• Fixed an issue with artifacts appearing in the output texture, when using two or more active viewports simultaneously.
• Added common shader file for easier use in the future.
• Overall optimization of the effect calculations on the CPP side.
• Added new blueprints to control new feature settings.
• Redesigned the noise generation function in the shader.
• Added new effect features: effect motion, render buffer selection, draw distance for the depth buffer, new noise presets.
• Expanded effect monitoring capabilities using stat gpu and Unreal Insight.
• Extended version support.

0.2.2:

• Fix for potential crashes in engine version 5.4.4.

0.3:

• Refined depth handling in the shader for both scene depth and custom depth.

• Added ability to use Stencil with custom depth via the r.Datamosh.SetStencil command and blueprint.

• Introduced a feature to exclude objects from the effect in both custom and depth rendering passes using the exclude option r.Datamosh.ExcludeCustomDepth.

• Expanded the motion functionality to allow adjustments for both X and Y axis movement.

• Added the ability to change the noise "grain size" with the r.Datamosh.Noise.PerBlockSize command.

• Updated the Blueprint library to support new shader features and enhance ease of use.