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Spectrum to TOPs – TouchDesigner Tutorial 8

By bileam tschepe (elekktronaut)

15 min video·en··67089 views

This is an AI-generated summary of “Spectrum to TOPs – TouchDesigner Tutorial 8” — a 15 min YouTube video by bileam tschepe (elekktronaut), published August 31, 2019. It condenses the full transcript into 9 key takeaways with clickable timestamps.

Summary

This tutorial demonstrates how to create dynamic, audio-reactive visuals in TouchDesigner by converting an audio spectrum into a TOP and then manipulating it with various operators for unique displacement and color effects.

Key Points

  • Begin by importing an audio file and setting up a project container with standard dimensions. 
  • Normalize the audio input using an Envelope CHOP and a Math CHOP set to divide. 
  • Process the audio further with an EQ CHOP (optional, for boosting higher frequencies) and an Audio Spectrum CHOP, followed by a Resample CHOP to control the number of samples. 
  • Convert the processed audio CHOP data into a TOP using a Chopto TOP, setting the data format to RNG and pixel format to 32-bit float RGBA. 
  • Use a Composite TOP with a Noise TOP (or other TOPs) to drive the resolution and create dynamic movement, translating the noise over time. 
  • Control the visual's colors by inserting a Lookup TOP and a Ramp TOP, allowing for custom color gradients. 
  • Apply a displacement effect using two Blur TOPs and a Displace TOP, adjusting parameters like source midpoint and displace weight for unique visual distortions. 
  • Experiment with different inputs for the displacement, such as a Constant TOP, Movie File In TOP, webcam feed, or even a Noise/Pattern CHOP, to achieve varied artistic results. 
  • The tutorial emphasizes the importance of experimentation with different operators, parameters, and post-effects to achieve desired visual outcomes, even for non-audio-reactive art. 
Spectrum to TOPs – TouchDesigner Tutorial 8

Spectrum to TOPs – TouchDesigner Tutorial 8

This tutorial demonstrates how to create dynamic, audio-reactive visuals in TouchDesigner by converting an audio spectrum into a TOP and then manipulating it with various operators for unique displacement and color effects.

Key Points

—Begin by importing an audio file and setting up a project container with standard dimensions.
—Normalize the audio input using an Envelope CHOP and a Math CHOP set to divide.
—Process the audio further with an EQ CHOP (optional, for boosting higher frequencies) and an Audio Spectrum CHOP, followed by a Resample CHOP to control the number of samples.
—Convert the processed audio CHOP data into a TOP using a Chopto TOP, setting the data format to RNG and pixel format to 32-bit float RGBA.
—Use a Composite TOP with a Noise TOP (or other TOPs) to drive the resolution and create dynamic movement, translating the noise over time.
—Control the visual's colors by inserting a Lookup TOP and a Ramp TOP, allowing for custom color gradients.
—Apply a displacement effect using two Blur TOPs and a Displace TOP, adjusting parameters like source midpoint and displace weight for unique visual distortions.
—Experiment with different inputs for the displacement, such as a Constant TOP, Movie File In TOP, webcam feed, or even a Noise/Pattern CHOP, to achieve varied artistic results.
—The tutorial emphasizes the importance of experimentation with different operators, parameters, and post-effects to achieve desired visual outcomes, even for non-audio-reactive art.
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