by Mergim Sahiti·Motion Graphics
Images © Mergim Sahiti. Used for product review; image policy.
Earns its place in the superhive library as a spline-growth addon that folds animation control, randomized variation, and a built-in emission shader into one Sidebar panel, with support across five render engines and full GPL source code.
Splines Growth is a Blender addon that creates and animates organic spline structures growing across the surface of a selected mesh. Each spline avoids exact duplication, so paths vary from one to the next, and you can generate anywhere from a single spline to hundreds.
Animation runs on defined start and end frames, with adjustable growth speed and an option to reverse growth. A curvature offset adds random distortion for natural variation, while a randomized bevel radius gives variable thickness. Generated splines arrive with a built-in emission material, ready for rendering, and a Delete All Splines button clears them in one click.
The addon adds a panel in the 3D Viewport Sidebar and works with Blender 4.0 through 4.4. It supports Arnold, Blender Internal, Cycles, Eevee, and Octane render engines, and ships as a GPL-licensed script with full source code. Typical uses include creeping vines, roots, and ivy-like structures, energy growth effects for sci-fi and horror projects, and abstract generative art.
Splines Growth is best for creating creeping vines, roots, and ivy-like structures, energy growth effects for sci-fi and horror projects, and abstract generative art across mesh surfaces in Blender.
Splines Growth is completely free to download and use.
Splines Growth lists compatibility with Blender 4.0 through 4.4, so version 4.4 is covered. The addon adds a panel in the 3D Viewport Sidebar, giving you access to its controls from within Blender's interface. It was published around ten months ago as a GPL-licensed script with full source code included, so it's worth checking the developer's page for the latest details on newer Blender releases before you install.
Splines Growth supports Arnold, Blender Internal, Cycles, Eevee, and Octane render engines, so you can pick the one that fits your project. Every generated spline comes with a built-in emission material that is ready for rendering, which means you don't have to build a shader from scratch before a preview or final render. The material is applied automatically as splines are created across the mesh surface.
Splines Growth adds an easy-to-use panel in the 3D Viewport Sidebar, so its controls sit alongside your scene as you work. From there you can set the spline count, define start and end frames, adjust growth speed, reverse the growth, and clear everything with the Delete All Splines button. It ships as a GPL-licensed script with full source code, and the developer's page has installation details.
Splines Growth includes animation control that lets you define start and end frames and set the growth speed, along with an option to reverse the growth. A curvature offset applies random distortion for natural variation, and a randomized bevel radius gives each spline variable thickness. You can generate anywhere from a single spline to hundreds, and each one avoids exact duplication for more organic-looking results across the mesh surface.
Splines Growth is listed as free here in the catalog, though licensing can change over time, so it's worth checking the developer's page for current terms before you download. The addon is distributed as a GPL-licensed script with full source code included, which means you can inspect and modify how it works. For the most up-to-date pricing or licensing information, head to the developer's page.
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