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Rt Painter - Realtime Object Scatter & Physics Brush

by Adrian Kulawik·Workflow

Images © Adrian Kulawik. Used for product review; image policy.

Why we like it

Stands out in the Superhive library for pairing realtime brush painting with Blender's rigid body physics in a single scatter tool.

What is Rt Painter - Realtime Object Scatter & Physics Brush?

RT Painter is a Blender addon for realtime object painting, scattering, and placement. Entering a modal operator, it lets you click, drag, and paint assets directly into your scene, with objects spawning under the cursor. Brush controls cover radius, flow, density, spacing, and pressure-based strokes, and it supports pressure-sensitive distance-based spacing or time-based flow.

Placement raycasts from the viewport to hit surfaces accurately, with optional alignment to surface normals for upright orientation and snapping to surface geometry. If no surface is hit, it falls back to the view plane. Physics integration can add active rigid bodies to painted objects and passive rigid bodies to the surface for collisions, with spawn clearance lifting objects slightly above surfaces to prevent immediate clipping.

Randomization covers per-object scale, per-axis rotation, Z-offset, and material assignment from a comma-separated list. Extra tools include Stamp Once for placing a single object, Scatter Fill for populating the viewport, and Move Origins to Bottom for stable physics. Auto-collection organization, linked duplication, and per-tick spawn caps round out the addon. Compatible with Blender 4.5+.

Who is Rt Painter - Realtime Object Scatter & Physics Brush best for?

Rt Painter - Realtime Object Scatter & Physics Brush is best for environment artists, level designers, and concept creators populating 3D scenes with scattered objects.

How much does Rt Painter - Realtime Object Scatter & Physics Brush cost?

Rt Painter - Realtime Object Scatter & Physics Brush is completely free to download and use.

Key features

  • Realtime object painting through a modal operator — click, drag, and paint assets that spawn under the cursor
  • Brush controls for radius, flow, density, spacing, and pressure-based strokes, with distance-based spacing or time-based flow
  • Surface placement by raycast, with optional alignment to surface normals, snapping to geometry, and a view-plane fallback
  • Physics integration adding active rigid bodies to painted objects, optional passive rigid bodies on surfaces, and spawn clearance to prevent clipping
  • Randomization for scale, per-axis rotation, Z-offset, and material assignment from a comma-separated list
  • Scatter Fill, Stamp Once, and Move Origins to Bottom tools, plus an optional wireframe preview
  • Auto-collection organization, linked duplication, and per-tick spawn caps

Tags

#object scatter#physics simulation#environment design#realtime painting#rigid body#brush tools#procedural scatter#blender addon

Frequently asked questions

Does RT Painter work with Blender 4.5?

RT Painter is compatible with Blender 4.5 and later, according to the developer. It runs as a modal operator for interactive painting, so you enter a painting mode and spawn objects under your cursor with an adjustable radius and flow. Because the listed compatibility is Blender 4.5+, older Blender releases aren't covered here. If you're on a newer version, check the developer's page to confirm the addon has been tested against your exact Blender build before relying on it in a production project.

How does RT Painter place objects on surfaces?

RT Painter raycasts from the viewport to hit surfaces accurately when placing objects. You can optionally align objects to surface normals for upright orientation and snap them to surface geometry for precise fitting. If a stroke doesn't hit any surface, placement falls back to the view plane. Spawn distribution stays within the brush radius and applies minimum distance checks to avoid clustering, and an optional wireframe preview shows upcoming placements. Together these give control over where and how objects land as you paint across a scene.

What physics options does RT Painter include?

RT Painter integrates with Blender's rigid body system for physics-aware placement. It can automatically add active rigid bodies to painted objects and optionally add passive rigid bodies to the surface so painted objects collide with it. Spawn clearance lifts objects slightly above surfaces to prevent immediate clipping. A Move Origins to Bottom tool batch-adjusts selected objects' origins to their bounding box bottom, which the developer notes is useful for stable physics. These options let scattered objects settle rather than being positioned entirely by hand.

Is RT Painter free to download?

RT Painter is listed as free in this catalog. Licensing and pricing can change over time, so check the developer's page for the current terms before downloading. The addon is published by Adrian Kulawik and covers realtime object painting, physics-aware placement, surface snapping, randomization, and extra tools like Scatter Fill and Stamp Once. If you plan to use it in a commercial project, confirm any license conditions directly with the developer to be sure they fit your intended use.

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