Andrew Benson

Other tutorials in this series:Book 1 (Recipes 00-12), Book 2 (Recipes 14-25), Book 3 (Recipes 26-43), Book 4 (Recipes 44-49)

Using 3D cameras and feedback to create complex patterns

Working with multiple jit.gl.camera objects and capturing to textures

This patch takes 4 different camera views of the same 3D scene and maps it onto 4 different videoplanes. By altering the relationship between the cameras and their output planes, we can get some pretty stunning feedback. The result is exquisite and complex repetitive visual patterns without any inputs, similar to a house of mirrors or kaleidoscope.

To begin with, we have 4 jit.gl.videoplane objects arranged in a cross pattern and each rotated inward 45 degrees.  For each videoplane, there is a jit.gl.camera feeding textures to it. Each of these cameras has capturing turned on, and is outputting a texture of the scene.  By default, these cameras are in the same position and rotation, but move the pictsliders and you'll be able to spread them out and reorient the cameras.

The texture output of the jit.gl.camera objects is passed through a jit.gl.slab object with a color scale-bias effect loaded.  The jit.gl.slab provides some basic color manipulation, but is also necessary to add another texture capture stage so that the feedback doesn't glitch out.  OpenGL doesn't like it when you try to capture to a texture that you are also rendering in the scene.  Passing the texture through jit.gl.slab avoids that situation.

Finally, we have another jit.gl.camera in the scene with no capturing happening, just to render it onscreen.


Create complex repetitive visual patterns similar to a kaleidoscope.

recipe-55-mirrorhouse

Recipe 55: MirrorHouse

reflectwhat

Facet is a flexible live coding system for controlling and applying synchronized algorithmic transformations to a Max patcher from a web browser. Any patcher can connect to Facet as long as you're running Max 8, and it can connect to Max for Live devices, too!

The language is similar to other live coding environments like TidalCycles and Hydra where simple commands are chained together to create complex patterns. The patterns can be scaled, offset, modulated, shuffled, duplicated, and more into any range or scale.

Facet runs with minimal CPU overhead in Max, allows for sample-accurate parameter modulation up into the audio rate, and can produce both precise and surprising patterns for Max, Jitter, or anything else you might want to control with Max.

Facet leverages Node for Max as a middleware between the browser and Max, where both systems can send data back and forth synchronously. There is also a series of utility objects and examples in the Facet repository to help you get started.

Facet is a flexible live coding system for controlling and applying synchronized algorithmic transformations to a Max patcher from a web bro

facet

Facet

Miroslav

An integrated open-ended interactive multimodal composing application, designed for composers, audiovisual artists and amateurs that translates sonic (instruments, singing, speech), visual and bodily/kinesic expressive patterns or 'narratives' into parameters controlling sound synthesis and processing.


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