PermaBlend – Dynamic Proximity Material Blending for Blender 5.0

PermaBlend is a Blender addon that creates dynamic, proximity-based material blending between objects in real-time. It generates seamless transitions where objects are near each other automatically—no manual painting or complex node setups required.

PermaBlend v1.1 Now Available!

2026 March Update*

v1.1.0 — What’s New? ✨

• 🪄 Invert Blend — Flip the blend direction on any object for complete control and creative flexibility.

• 🎨 Vertex Group Mask : Precisely paint exactly where blending happens, giving full control over your effect.

• 🧭 Normal Direction Filter : Restrict blending to surfaces facing a specific direction, ideal for snow, moss, dirt, and more.

• 🪨Displacement Blending : Seamlessly blend displacement between two materials for smooth, realistic surface transitions.

• 🐛 Banding Artifacts Fixed: Sharp stripes are gone; blends now transition smoothly across any geometry.

• 🎛️ Custom Blend Style : Fully accessible with dedicated controls for amplitude, threshold, and radius, giving you ultimate precision.

✨ Advanced material blending system with dynamic proximity-based effects for Blender 4.0+
Created by Egret

It’s a non-destructive and real-time solution for environment artists, procedural designers, and shader developers — helping you achieve natural, adaptive material blending with minimal setup.

🚀 Key Features

🔄 Dynamic Proximity Blending: Materials blend automatically based on distance
🎨 Multiple Blend Styles: None, Noise, and Height-based blending options
⚡ Real-time Preview: Instantly visualize blend changes in the viewport
🧱 Non-destructive Workflow: Add, remove, or reconfigure blends anytime
🎚️ Distance & Falloff Controls: Fine-tune how far and how smoothly blends occur
🪶 Lightweight: Minimal performance impact, fully optimized
🧠 Smart System: Automatically manages modifiers and nodes behind the scenes.

🧭 Quick Start Guide

1. 🖱️ Select your target objects (these receive the blend)

2. 🔹 Shift-select the source object (this provides the blend material – must be the active object)

3. ⚙️ In the PermaBlend panel (N-Panel sidebar), click “Create a Permablend”

4. 🎚️ Adjust Blend Distance and Falloff for desired softness

5. 🎨 Choose a Blend Style (None, Noise, or Height)

That’s it! The selected objects will now blend their materials dynamically based on proximity.

💾 Installation

🧱 Blender 4.0+

1. Download permablend.zip

2. Open Blender → Edit → Preferences → Get Extensions

3. Click the dropdown ⌄ → Install from Disk

4. Select permablend.zip

5. Enable the addon

📍 Finding the Panel

Press N in the 3D Viewport → Go to the Permablend tab.

🎛️ Interface Guide

🧪 Create a PermaBlend

Main operator that generates a proximity-based blend between selected objects.
Requirements:

• At least two objects selected

• Each object must have an existing material

• The active object (last selected) becomes the source material

🧩 Apply / Remove

• Apply 🧱 : Makes the blend permanent, removing temporary modifiers

• Remove ❌ : Deletes all Permablend data and restores original materials

🎚️ Blend Distance

Controls how far the effect extends from the source.

• Higher = smoother, wider blending

• Lower = tighter, more localized blend

🧮 Falloff & Scale

Fine-tune transition softness and scale per object for detailed control.

🎨 Blend Style

Select how the blend behaves:

• None: Smooth gradient transition

• Noise: Adds procedural breakup for natural variation

• Height: Uses geometry height to drive blend

👁️ Display Options

• Show/Hide Blend Mask – Toggle visibility of blend influence

• Color Ramp View – Visualize the gradient strength

Levels Preview – Check intensity and smoothness.

⚙️ Technical Overview

Permablend uses Blender’s modifier and data transfer systems to create non-destructive blends:

🧩 Proximity-Blend Modifier: Computes vertex weights based on object distance
🎨 Vertex-Color Transfer: Applies blend data as vertex colors
🧭 Normal & UV Handling: Ensures consistent shading and texture mapping
⚙️ Shader Integration: Connects directly to material nodes for smooth transitions

All these operations are handled automatically — no manual node setup required.

⚡ Performance

• 💨 Real-time feedback with minimal lag

• 🧠 Smart modifier stacking: optimized order and updates

• 🪶 Lightweight system, designed for large environments

• 🔒 Apply blends when satisfied to “bake” results and boost performance

🧱 Requirements

• Blender 4.0 or higher

• Objects must have valid materials

• Works with Eevee and Cycles

• Mesh objects only (no curves or volumes)

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  🧰 Troubleshooting

  ❓ Blend not appearing?

  • Ensure both objects have materials

  • Check that the source object is active (last selected)

  • Try increasing the Blend Distance

  ⚠️ Modifiers not behaving?

  • Do not manually edit Permablend modifiers

  • Use the Remove button and recreate if needed

  🐢 Performance issues?

  • Collapse modifier panels

  • Apply blends once finalized

  • Avoid excessive high-poly objects.

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    🆕PermaBlend Changelog v1.1.0

    What's New?

    • Invert Blend: Flip the blend direction on any target object, starting from the far edge instead of the contact point.

    • Vertex Group Mask: Precisely control where blending occurs using a vertex group; only painted areas will be affected.

    • Normal Direction Filter: Limit blending to surfaces facing a specific direction, perfect for top-down effects like snow or moss; threshold and softness are fully adjustable.

    • Displacement Blending: Seamlessly blend displacement outputs when both materials use displacement for realistic physical transitions.

    • Volume Passthrough: Materials with volume shaders now retain their volume through the blend correctly.

    • Bake to Textures : Export your finished blend to texture maps (Diffuse, Normal, Roughness, Metallic, AO, Emission) in one click; set resolution and output folder for game engine or other workflow use.

    • Custom Blend Style : Fully accessible with Amplitude, Threshold, and Radius controls for total creative freedom.

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      Bug Fixes.🪲

      • Custom Blend Style: Fully accessible with Amplitude, Threshold, and Radius controls for total creative freedom.

      • Banding Artifacts Fixed: Sharp concentric stripe patterns on blended objects are gone; transitions are now smooth regardless of geometry density.

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      UI Improvements

      • Context-sensitive panel: only displays controls relevant to your selected object.

      • Setup options are visible before creating a blend; blend controls appear afterward for streamlined workflow.

      • Blend Mode (Simple / Advanced) is now integrated into the Blend Style section.

      • New Blend Mask section consolidates Invert Blend, Normal Direction Filter, and Vertex Group Mask in one place.

      • Apply and Remove buttons appear only when a blended object is selected

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    ⚖️ License

    PermaBlend v1.0
    © 2026 Egret Studios LLC
    Licensed under GPL v3.0