Rock & Boulder Generator builds photoreal rocks in one click, right in the 3D viewport sidebar. Every rock is made from scratch by the addon: real fracture planes with sharp edges, chipped corners, sediment beds, cracks, pits and flaky surface detail, with a full PBR material that follows the shape.

Pick from 20 real-world presets or press Surprise. Every slider rebuilds the rock live, and a new seed gives you a fresh rock of the same kind, so a whole set of matching stones takes seconds.

One click, a new rock
Pick a preset from the sidebar gallery or press Surprise. Reseed gives you a new rock of the same kind.

20 kinds of rock
Granite, sandstone strata, slate, basalt columns, river cobbles, rubble, lava rock, marble, mossy and snow-capped boulders.

Live sliders
Drag roundness, fractures, strata, moss or snow and the rock rebuilds while you watch.

Basalt columns and scatter
Hexagonal basalt joints, causeway steps, pebble beds and rubble piles with no overlapping stones.

Game-ready LODs and bakes
Make LOD0 to LOD3 and bake color, roughness and normal maps onto the low poly mesh in one click each.

What it makes

• Granite boulders, jointed granite blocks and angular cliff chunks
• Layered sandstone with eroded beds, and red desert sandstone streaked with rock varnish
• Slate shards and slate scree, limestone with solution pits, lava rock and marble
• Basalt columns and Giant's Causeway stepping stones with real hexagonal joints
• River pebbles, river cobbles with quartz veins, rubble scatter and shore rocks
• Mossy forest rocks, snow-capped boulders, stepping stones and standing stones

Built for games and film

• Scatter mode packs many separate stones without overlaps; Columns mode grows basalt joints
• Moss and snow grow on the faces that point up, with real thickness
• Make Game LODs creates triangulated LOD0 to LOD3 meshes in one click
• Bake PBR Textures bakes color, roughness and normal maps from the detailed rock onto a low poly LOD
• Clean UVs, smooth normals and attributes for cavity, occlusion, layer, moss and snow
• Convert to Plain Mesh when you are done

Requires Blender 4.2 or newer. Tested on Blender 4.2, 4.5 and 5.2 LTS.