
Fluid Painter
by Mk3dLab
Fluid Painter is a Blender add-on that uses Geometry Nodes to paint fluids over any 3D surface with a curve. It ships with 30+ presets compatible with Eevee and Cycles.
by GhostVertex·VFX
Images © GhostVertex. Used for product review; image policy.
Top Layer stands out in the Superhive library for adding procedural grime and liquid layers to any object without UV unwrapping, plus multi-object distribution and a free demo version.
Top Layer adds fully procedural dirt, rust, liquid stains, and splash layers to Blender objects. Because the shaders are 100% procedural, they offer infinite resolution with no image textures required, and they work on any object without UV unwrapping. The add-on supports object normals for realistic directionality and works with both Cycles and Eevee.
Select multiple objects and Top Layer automatically distributes unique splatter effects across all of them, which suits large-scale scenes such as rooms, environments, or debris fields. The workflow is non-destructive and compatible with existing materials. Layers are managed directly in the panel, where you can add and delete them per material, across an entire object, or across all objects sharing the same name as the empty added by Top Layer.
Vertex Paint can be used to limit the effects or make them slightly transparent in places. The tool is aimed at visual storytelling, asset aging, and set dressing. A free demo version is available so you can try it before committing.
Top Layer - Add Procedural Dirt, Grime And Liquid Effects is best for blender artists working on visual storytelling, asset aging, and set dressing across single objects or large-scale scenes.
Top Layer - Add Procedural Dirt, Grime And Liquid Effects is completely free to download and use.
Top Layer is a Blender add-on compatible with Blender versions 4.5 through 5.2. It is listed as an extension and is marked Blender Extension Compatible. It works with both the Cycles and Eevee render engines, so you can use the procedural dirt, rust, and liquid layers regardless of which of those two engines you render with. Check the developer's page to confirm the current version range before installing on your specific Blender build.
Top Layer requires neither. The shaders are 100% procedural, offering infinite resolution without any image textures, and they work on any object without UV unwrapping. The add-on also supports object normals for realistic directionality of the effects. Because the workflow is non-destructive and compatible with existing materials, you can add dirt, rust, and liquid layers on top of what an object already uses without replacing its current material setup.
Top Layer includes multi-object support. Select multiple objects and it automatically distributes unique splatter effects across all of them, which suits large-scale scenes such as rooms, environments, or debris fields. Layers are managed directly in the panel, where you can add and delete them per material, across a whole object, or across all objects sharing the same name as the empty added by Top Layer. Vertex Paint can also limit effects or make them slightly transparent in places.
Top Layer is listed as free here, and a free demo version is available so you can test the add-on before committing. For current licensing details and the full version, refer to the developer's page. The add-on is released under the GPL license. A demo video is also available if you want to see more about how the procedural dirt and liquid layers are applied before downloading.

by Mk3dLab
Fluid Painter is a Blender add-on that uses Geometry Nodes to paint fluids over any 3D surface with a curve. It ships with 30+ presets compatible with Eevee and Cycles.

by Alt Tab
Alt Tab Easy Fog adds volumetric materials to Blender, with more than 35 presets and one-click automatic fog for atmospheric depth and lighting effects. It's compatible with Blender 4.0 through 4.5.

by antoine bagattini
Baga Rain Generator adds rain to Blender scenes using geometry nodes, affecting only surfaces exposed to the rain. It includes a procedural rain shader generator that overlays onto existing materials.
by CGMatter
Camera Tracker 6 is a Blender add-on that uses photogrammetry to produce automatic camera and tripod solves. It also handles rotomation, variable focal length, dense point clouds, pinning, undistortion, and object tracks.

by Alt Tab
Alt Tab Easy Fog 2 is a Blender addon for adding realistic volumes like fog, smoke, and godrays. It bundles over 50 procedural materials, more than 100 VDBs, and a range of abstract shaders.

by LIGHTARCHITECT
Khaos: Ultimate Explosion/Destruction Add-On brings explosion and destruction tools to Blender, bundling two versions—KHAOS Detonator for procedural mesh explosion systems and KHAOS Legacy for smoke, debris particle effects and rigid body fracture tools.