PIXELPLAY BEAT REACTOR v2.1.2

PixelPlay Beat Reactor is a modular audio-reactive animation Extension for Blender. It analyzes an audio track and converts the resulting signals into controls for object animation, modifiers, Geometry Nodes, materials, lights, cameras, and Scene FX.

Version 2.1.2 is a compatibility and maintenance update that adds tested Blender 5.2 LTS support, improves Geometry Nodes compatibility, and updates the included demonstration files.

COMPATIBILITY

Minimum supported Blender version:

Blender 4.5.0

Tested with:

Blender 4.5.1 LTS

Blender 5.1.0

Blender 5.2.0 LTS

One PixelPlay Beat Reactor Extension package supports all three tested Blender versions. Separate downloads for Blender 4.5, 5.1, and 5.2 are not required.

Compatibility with future Blender versions will be evaluated as those versions become available.

INSTALLATION

Download PixelPlay_Beat_Reactor_v2.1.2_Extension.zip.

Do not extract the ZIP file.

Open Blender.

Go to Edit > Preferences.

Open the Get Extensions section.

Open the menu in the upper-right corner and choose Install from Disk.

Select PixelPlay_Beat_Reactor_v2.1.2_Extension.zip.

Enable PixelPlay Beat Reactor if it is not already enabled.

Close Preferences.

Open the 3D Viewport and press N to display the sidebar.

Select the PixelPlay tab and open Beat Reactor.

Blender supports installing Extension packages directly from ZIP files through Install from Disk.

The separate Demos and Documentation ZIP is not an installable Extension. Extract that ZIP normally before opening the included .blend files.

QUICK START

Open the Beat Reactor panel in the PixelPlay sidebar.

Click Browse Audio File and select your audio track.

Use Sync Timeline when you want the scene timeline to match the loaded audio.

Analyze the audio.

Select an object you want to animate.

Click Add Module and choose an effect.

Select an audio source for the module.

Adjust the Response, Value Mode, Range, and target settings.

Play the timeline to preview the reaction.

Add more modules or Scene FX as needed.

Use Bake Keyframes when you are ready to convert supported live reactions into standard Blender animation.

Each module can use its own audio source and settings, allowing multiple parts of a scene to respond differently to the same track.

AUDIO ANALYSIS SOURCES

Beat Reactor provides 22 audio-analysis sources organized into four groups.

Core Sources:

Bass

Mid

High

Full

Beat

Smooth

Focused Frequency Bands:

Sub Bass

Kick

Bassline

Low Mid

Mid Body

Presence

Sparkle

Air

Dynamics Sources:

Peak

Crest

Onset

Activity

Spectral Sources:

Spectral Centroid

Spectral Flux

Spectral Flatness

Spectral Rolloff

Use lower-frequency sources for bass- and percussion-driven effects, higher-frequency sources for visual detail and emission, dynamics sources for transient behavior, and spectral sources for more advanced tonal and texture-based control.

MODULES AND TARGETS

Beat Reactor includes stackable modules for controlling:

Object location, rotation, and scale

Continuous rotation

Pulse, bounce, spring, jitter, drift, and other motion effects

Supported modifier properties

Exposed Geometry Nodes inputs

Material and emission properties

Light properties

Camera properties

Scene-level compositor and environment effects

Modules can be reordered, duplicated, copied, pasted, enabled, disabled, reset, randomized, saved as presets, and combined into larger reactive stacks.

Each module can have its own audio source, response settings, range, value mode, and target.

Available targets depend on the selected object, modifier, material, light, camera, or scene configuration. Beat Reactor controls supported properties rather than claiming access to every possible Blender property.

MODIFIER REACTOR

Modifier Reactor can drive supported modifier properties and exposed Geometry Nodes inputs.

The available targets depend on the selected object, its modifiers, and the inputs exposed through the Geometry Nodes group interface.

Supported target types include appropriate:

Numeric values

Integer values

Vector values

Color values

Individual vector or color components

For Geometry Nodes control:

Expose the desired value through the node group interface.

Add the Geometry Nodes modifier to the object.

Add a Modifier Reactor module.

Select the modifier.

Select the exposed parameter.

Configure the audio source, response, value mode, and range.

Version 2.1.2 includes updated Geometry Nodes input handling for Blender 5.2 LTS while preserving compatibility with Blender 4.5 LTS and Blender 5.1.

MATERIAL, LIGHT, AND CAMERA FX

Material controls can animate supported properties such as:

Emission

Color

Edge response

Transparency

Roughness

Specular behavior

Light controls can reactively affect supported settings such as:

Intensity

Color

Distance

Size

Flicker

Strobe behavior

Camera controls can affect supported properties such as:

Focal length

Orthographic scale

Depth-of-field focus

Aperture settings

The exact controls shown depend on the selected module and target type.

SCENE FX

Scene FX provides a separate scene-level stack for supported compositor and environment effects.

This makes it possible to combine object animation with broader visual reactions such as:

Exposure

Bloom and glow-related workflows

Color adjustments

World settings

Environment changes

Scene FX modules have their own audio routing, response, range, target, and selected-module controls.

Scene FX requires an appropriate compositor or scene configuration. Beat Reactor provides status and repair controls when supported connections need to be created or restored.

Scene FX remains a live-reactive workflow and is not currently included in Bake Keyframes coverage.

RESPONSE MODES

Response modes determine how the incoming signal behaves over time.

Available behaviors include:

Classic

Peak Hold

Smooth

Attack and Release

Pulse

Average

These settings can reduce jitter, preserve short peaks, create gradual motion, soften reactions, or produce sharper beat-driven movement.

VALUE MODES

Value modes determine how the processed signal changes the selected target.

Supported modes include:

Fixed Range

Offset From Rest

Scale From Rest

Oscillate Around Rest

Beat Timestamp for supported advanced workflows

Rest-based modes use the target’s captured starting value, making it easier to create reactions without manually calculating an absolute replacement value.

RANGE MAPPING

Range controls determine the minimum and maximum output applied to the selected target.

Use these controls to:

Limit the strength of an effect

Reverse a reaction

Create subtle movement

Produce stronger beat-driven changes

Keep animated values within a useful range

Start with a conservative range and increase it gradually while previewing the timeline.

BAKE KEYFRAMES

Bake Keyframes converts supported live Beat Reactor output into standard Blender keyframes.

PixelPlay Beat Reactor v2.1.2 supports baking for:

Object transforms

Modifier Reactor targets

Supported Geometry Nodes inputs

Material React and Material FX

Light FX

Camera FX

After baking, supported results can be edited using Blender’s standard animation tools.

Clear Bake removes verified Beat Reactor-owned baked keys and restores captured pre-bake animation when ownership can be safely confirmed.

Scene FX is not included in the current Bake Keyframes coverage and remains live-reactive.

Particle FX is not included in the current public Core module selection or Bake Keyframes coverage.

Always save a backup of important production files before performing large bake or clear operations.

INCLUDED DEMONSTRATION AND BEGINNER FILES

The separate Demos and Documentation download includes four fully authored demonstration scenes:

PixelPlay Logo

Hex Reactor Floor

Singularity Core

Voxel Pulsar

A dedicated Blender 4.5 LTS version of Singularity Core is also included.

The package also includes three beginner templates focused on:

Location

Rotation

Uniform scale

The authored demonstration scenes use the included PixelPlayMusic.wav file and open ready for live playback when the supplied folder structure is preserved.

Customers can replace the demonstration audio with their own supported audio file and run Analyze Audio.

The included scenes are provided as practical learning examples. Open, inspect, and modify them to understand how audio sources, module stacks, materials, Geometry Nodes, cameras, and Scene FX can work together.

The demonstration files are optional and are not required to install or use the Extension.

WHAT IS NEW IN v2.1.2

PixelPlay Beat Reactor v2.1.2 is a compatibility and maintenance release.

Changes include:

Tested support for Blender 5.2 LTS

Updated Geometry Nodes Modifier Reactor input handling

Updated Geometry Nodes Bake Keyframes compatibility

Improved Particle FX ownership and cleanup safety

Corrected and revalidated demonstration scenes

Continued support for Blender 4.5 LTS and Blender 5.1

No required preset or project migration

UPDATING

Before installing an update:

Save and close important Blender projects.

Keep a backup of custom presets and production files.

Open Blender Preferences.

Locate the installed PixelPlay Beat Reactor Extension.

Remove or update the previous installation as appropriate.

Install PixelPlay_Beat_Reactor_v2.1.2_Extension.zip using Install from Disk.

Restart Blender if requested.

Confirm that Beat Reactor reports version 2.1.2.

Do not combine files from different Beat Reactor versions inside the same Extension installation.

Projects created with earlier supported Beat Reactor versions should not require a preset or project migration for v2.1.2.

UNINSTALLING

Open Edit > Preferences.

Open Get Extensions.

Locate PixelPlay Beat Reactor.

Open its options and choose Uninstall.

Restart Blender if necessary.

Uninstalling the Extension does not automatically remove animation, objects, materials, modifiers, module settings, or baked keyframes already stored in your Blender projects.

TROUBLESHOOTING

If the PixelPlay tab is not visible:

Confirm that the Extension is installed and enabled.

Move the mouse over the 3D Viewport and press N.

Restart Blender after installation.

If audio cannot be analyzed:

Confirm that the selected audio file still exists at its saved location.

Try reloading the audio file.

Use an audio format supported by your Blender installation.

Try converting the file to WAV or FLAC.

Keep PixelPlayMusic.wav beside the supplied demonstration files when using their included analyzed setup.

Re-analysis requires access to an audio file. Packed-only re-analysis is not currently supported.

If an object does not react:

Confirm that audio analysis has completed.

Confirm that the module and object are enabled.

Check the selected source, target, range, response, and minimum-signal settings.

Make sure the timeline is within the analyzed audio range.

If a Geometry Nodes parameter is missing:

Confirm that the correct modifier is selected.

Confirm that the value is exposed through the Geometry Nodes group interface.

Confirm that the exposed input uses a supported data type.

Refresh or reselect the target if the node group interface was recently changed.

If a baked target needs to return to live evaluation:

Use Clear Bake for verified Beat Reactor-owned baked data.

Confirm that the module remains enabled.

Play or change frames to resume live evaluation.

If Scene FX reports a disconnected compositor:

Use the available connection or repair control.

Verify that compositing is enabled for the scene.

Confirm that the required supported nodes and scene configuration are available.

SUPPORT

Support is available through Superhive creator messaging or by email at:

[email protected]

When requesting support, include:

Your Blender version

Your operating system

Your Beat Reactor version

A description of the problem

Steps that reproduce the issue

Screenshots or error messages when available

Tutorials, examples, Geometry Nodes demonstrations, and additional product information are available through PixelPlay Addons and the official PixelPlay Addons YouTube channel:

https://www.pixelplayaddons.com

https://www.youtube.com/@PixelPlayAddons