Houdini Harmonies: Creating Audio-Reactive 3D Art

In this video, we’ll explore how to import and play audio in Houdini using a CHOP (Channel Operator) network. We’ll also dive into basic audio manipulation by applying a pass filter to remove specific frequency ranges.

In part five, we’ll explore trigger-based audio reaction techniques. You’ll learn how to manipulate audio waveforms in CHOPs and use them to control parameters in SOPs for dynamic effects.

In part six, we’ll take a deeper dive into trigger-based audio reaction techniques. You’ll learn advanced methods for manipulating audio waveforms to control a variety of parameters in SOPs.

In part eight we will take a look at a technique to instance objects onto points using audio-reaction. We will control which object is instanced, the distribution and the scale of the object by attributes created with audio-reaction in CHOPs.

In part nine we add audio-reactive shake and zoom motion to our camera.

In part ten we use basic modeling techniques in Houdini to create a neon light model.

In part eleven we will continue building our audio-reactive neon light setup. We connect the lights with cables and simulate them using Velum hair constraints.

In part twelve we will add audio-reactive rotation animations to our scene. We will build additional CHOP networks and re-use already created audio-reaction data to rotate parts of our 3D scene in rhythm to the music.

In this part we will move over to Solaris. We will import our scene from SOPs into LOPs and build a basic Solaris network to get us started.

In part 14 we will create a basic lighting setup in Solaris. To achieve a volumetric light-ray effect we will take a closer look at Gobo Light Filters and the Karma Fog Box node.

In part 15 we will create a material for our neon lights. To make the emission parameter of the material audio-reactive, we use our already established CHOPs system.

In part 16 we will add more materials to our audio-reactive music visualizer.

We will learn how to download and use awesome materials from the included AMD material library.
Additionally we will create some custom materials and control parameters like emission with different attributes from our audio reactions.

Due to licensing I cannot include the AMD material textures into the project file. You have to download the materials from the AMD library and re-link them.

In Part 17, we’ll enhance our audio-reactive music visualizer by incorporating additional materials, specifically for our particle simulation. Our goal is to make the particles emit light when they reach a certain speed. Using some straightforward VEX scripting, we’ll create an attribute that controls the material's emission based on the particle's velocity.

Please note, due to licensing restrictions, I cannot include the AMD material textures in the project file. You'll need to download the materials from the AMD library and manually re-link them.

In part 18 we will refine and finalize the lighting of our audio-reactive music visualizer project.

We will take a look how to use Solaris powerful lighting tools to improve the lighting of the scene by adding an environment light, adding colors and adjusting some important parameters on our materials.

Due to licensing I cannot include the material textures into the project file. You have to download the materials from the AMD library and re-link them.

In this final part, I will guide you through setting up a test render in Karma. From there, we'll transition into After Effects to explore quick testing and color correction techniques to enhance your render.

As the last step, we'll fine-tune the final render settings and ensure everything is perfectly prepared for your final output.

You've made it to the finish line—congratulations! Your dedication and perseverance are truly impressive.

Due to licensing I cannot include the material textures into the project file. You have to download the materials from the AMD library and re-link them.