Procedural Rock Generator for Blender

Change the seed and you get a different rock — not the same rock rescaled.

Most rock generators are a sphere with a displacement texture on top, so every seed hands you the same potato wearing different warts. Rock Forge builds the mass first: blocks scattered around a core, sliced by real cutting planes, fused through a volume into one solid stone. The surface relief comes last. The seed moves the blocks, so it changes the shape.

Stylized, realistic and low poly from one generator

Ten rock types — boulder, slab, angular, salt crystal, meteorite, desert rock, sedimentary, volcanic, laminated, pebble — crossed with three finishes. Thirty starting points, and the two axes are independent: pick the character, then pick the finish.

Low poly comes out at a few hundred triangles, engine-ready. Realistic keeps the detail for close renders. One dropdown, not two products.

One click, then 45 knobs if you want them

Press Add Rock and there is a stone in your scene. Press Random and it rolls everything. When you want control, it is all there — blocks, cutting planes, erosion, strata, cracks, faceting, bevelled edges — and parameters that depend on another are greyed out until they actually do something.

Non-destructive, and no surprises at the end

The generator lives in a Geometry Nodes modifier. Every parameter is live. Nothing is baked until you press Done, and Done converts exactly what you are looking at — same resolution, same face count the panel is already showing.

Blender 4.2 LTS or newer. No dependencies.