Dirty up your environment, add more realism!

What is this product about? I wanted to make a horror game and realized that there was no tool yet for spreading blood and other gore on all kinds of objects. That's why I created this extension.

Top Layer lets you instantly apply high-quality, fully procedural dirt, rust, splashes, and liquid layers to your Blender objects — with just a few clicks.

💥With multi-object support!
Select multiple objects, and Top Layer will automatically distribute unique splatter effects across all of them — perfect for large-scale scenes like rooms, environments, or debris fields.

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  ✨ Features:

• • 100% procedural shaders — infinite resolution, no image textures required
• • Works on any object, no UV unwrapping needed
• • Includes dirt, rust, liquid stains, and more
• • Supports object normals for realistic directionality
• • Great for visual storytelling, asset aging, set dressing
• • Compatible with existing materials (non-destructive workflow)
• • For Cycles and Eevee

Manage the top layers directly in the panel. Add and delete them with ease. Either per material, all in one object, or all those with the same name as the empty added by Top Layer for editing.

Use Vertex Paint to limit the effects or make them slightly transparent in places.

Would you like to test the add-on without paying?

Use the free demo version!

Here on Superhive, the lowest price is $1, but on Gumroad, you can download the demo for free.

Would you like to promote the product as an affiliate? Please contact me via Superhive.

Why the release discount? I am a single developer. Although I have tested the add-on extensively, it is still possible that a bug may slip through. If anyone discovers a bug, please let me know. I will fix the problem as soon as possible.