Macro Variation

• Macro Variation Setup:

• Core Components:
  • Same noise texture at 3 scales
  • UV scales:
    • Large: 0.2
    • Medium: 0.205
    • Small: 0.02

• Implementation Process:

1. Combine Noise Layers:

   • Add RGB channels
   • “Add 0.5 constant to each”
   • Multiply results together

2. Contrast Control:

   • Use Lerp node:
     • A = Gray (0.5)
     • B = 1.0
     • Alpha = Combined noise
   • “Prevents overexposure”

3. Parameter Setup:

   • Create groups:
     • Macro scales (0-3)
     • Macro texture
     • Contrast values
   • “All accessible in material instance”

• Key Notes:

• “Single texture parameter updates all three scales”
• “Named reroutes for organization”
• “Combines with micro variation”
• Adjustable via material instance for fine-tuning