toolbox-touchdesigner

Day 2: Signal Processing & 3D Rendering

🕘 Morning Session (3 hours) - CHOPs: Working with Signals

📌 Objective: Understand CHOPs and their role in controlling parameters, processing signals, and working with real-time data.

1️⃣ Controlling Operators with CHOPs (45 min)

🔹 Adjusting parameters dynamically using CHOPs
🔹 Linking CHOP values to other operators (drag & drop, export, expressions)
🔹 Using LFO CHOP, Noise CHOP, Math CHOP to create motion

📖 Reference: Controlling OPs with CHOPs

📌 Exercise: Animate a Transform TOP using an LFO CHOP.

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2️⃣ CHOP Signal Processing & Routing (45 min)

🔹 Understanding single-sample vs. multi-sample CHOPs
🔹 Combining CHOPs with Math, Logic, and Filter CHOPs
🔹 Routing & organizing signal flow

📖 Reference:

• Working with Single Sample CHOPs
• Signal Routing

📌 Exercise:

• Use a Math CHOP to scale and offset an animated sine wave.
• Control opacity of an image using Logic CHOP thresholds.

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3️⃣ Audio-Reactive Visuals (1 hour)

🔹 Importing and processing audio signals
🔹 Extracting low, mid, and high frequencies using Audio Spectrum CHOP
🔹 Mapping frequency bands to visual effects (brightness, motion, distortion)

📖 Reference: Manipulating Audio

📌 Exercise: Create a music-driven animation where audio frequencies drive size, color, or motion.

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🕒 Afternoon Session (3 hours) - SOPs & 3D Rendering

📌 Objective: Learn procedural 3D modeling, rendering, and animation in TouchDesigner.

4️⃣ 3D Geometry & Procedural Modeling (45 min)

🔹 Introduction to SOPs (Surface Operators)
🔹 Creating & manipulating 3D shapes (Sphere, Box, Tube SOPs)
🔹 Modifying geometry with Noise, Transform, Copy SOPs

📖 Reference:

• 3D Generators
• Essential Procedural Modeling

📌 Exercise: Create an array of moving spheres with the Copy SOP.

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5️⃣ 3D Rendering & Cameras (1 hour)

🔹 Setting up a Render Network (Geometry COMP, Camera COMP, Light COMP, Render TOP)
🔹 Adjusting perspective & orthographic views
🔹 Basics of lighting & shadows

📖 Reference:

• Basic Render Setup
• Working with Cameras

📌 Exercise: Set up a 3D scene with a moving camera.

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6️⃣ Texturing & Shading (1 hour)

🔹 Using Phong & Constant MATs for materials
🔹 Applying textures from TOPs to 3D objects
🔹 Introduction to Physically Based Rendering (PBR)

📖 Reference:

• Texturing Geometry with MATs
• Physically Based Rendering

📌 Exercise: Create a textured 3D model, apply lighting & render.

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📌 Summary of Day 2

✅ Learn CHOPs for real-time control & audio visualization
✅ Work with procedural 3D modeling & rendering
✅ Set up a basic 3D scene with textures & animation

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