Focused 3D modeling.
Silo is a focused 3D modeling application with the ability to effortlessly switch between organically sculpting high-polygon models and precisely controlling hard-edged surfaces. It can be used for anything from creating 3D characters for video games and movies to quickly exploring 3D architectural ideas.
Designed for professionals.
A longtime favorite of many professionals, Silo is currently being used at top studios worldwide as both a stand-alone design tool and as a versatile element of a multi-software 3D graphics workflow. It is available for Windows, Mac OS, and Linux.

An essential addition to any modeler's toolset.
Silo's carefully-refined, focused toolset gives it unparalleled power and ease of use for modeling. Below are just a few feature highlights, but we encourage you to download the free trial to really try it for yourself.

Zen Workflow
Silo's careful design and its focus on pure modeling allows it to have a free, uncluttered feeling which is simply not possible in larger applications. Whether you are working to precise specifications or sketching out your thoughts, it is much easier to do so in a calm, focused modeling environment. This benefits professionals who are coming to Silo to escape slower, more complex software. It also benefits hobbyists and students, who are able to learn everything they need without having to deal with anything they don't need.
Cross-Platform With A Single License
Silo is registered per-user, rather than per-computer or per-OS. A single license allows a Silo user to have Silo installed and registered on up to three computers, in any combination of Mac and PC.
File Formats
Silo supports import and export of .sia, .sib, .obj, .3ds, .dxf, and .fac, as well as the export only of .stl, .pov, and .rib.
Advanced Polygonal Modeling
Silo offers a comprehensive set of interactive, context-sensitive tools for rapid polygonal modeling. The workflow is focused on having a few powerful, intelligent tools, rather than a separate command or option for every conceivable function. Additionally, "sticky key" functionality allows tools to behave differently if a hotkey is held down. Key modeling tools include Break, Tweak, Cut, Bevel, Slide, Scale, Extrude, Polygon Tool, Edge Tool, unlimited Undo and Redo, and more. Modeling can be performed with or without manipulators, including the Universal Manipulator which combines rotate, scale, and translate into a single manipulator.
Comprehensive Selection Tools
Robust selection tools are the key to great modeling, and a quick look at the Selection menu shows Silo's development has focused heavily on this area. Some highlights? Multi Select mode allows users to select vertices, edges and faces without changing selection modes. Tweak selection allows a user to grab, move, and deselect a component with a single click. That and many other tools work with Soft Selection, which smoothly distributes changes throughout a shape. Paint, Area, and Lasso selection types are supported. Select Visible and Select Thru functions are both available - by default, use the left mouse button for Select Visible commands, and the middle mouse button for Select Thru. A separate Undo is available for cycling through recent selections.
Subdivision Surfaces
Subdivision surfaces offer a smooth, high polygon shape, and are easily accessible in Silo. Using default shortcuts, simply press c to subdivide as many levels as you want, and v to unsubdivide. Modeling can be performed in real time at any subdivision level with updates shown directly on the subdivided shape. Edges can be creased to keep them sharp at all subdivision levels.
Unparalleled Customization
Designed to fit into any pipeline, Silo is the most customizable modeler available. That includes complete customization of the mouse, keyboard, and graphical interface, allowing it to closely emulate other applications a user may be familiar with, or perform tasks (such as assigning up to 40 different commands to a typical mouse with keyboard modifiers) which no other application can. Favorite tricks include assigning undo/redo, grow/shrink selection, and to the scrollwheel, or simply putting frequently used commands on the right mouse button with modifiers. Silo's button pages allow users to create their own multi-page interfaces, and assign any command to any image. The interface and color scheme are also highly customizable. Customizations can be easily imported, exported, and shared. Even the Primitives menu can be customized with frequently used models or settings.
Support and Resources
The Silo help, tutorials, and videos are all maintained online. You can find hours of training videos on our tutorials page and other content on the Nevercenter 3D Modeling Wiki, which offers many resources for modelers using any application. The Silo user forums at CGTalk or the Silo3D Forum Archives are also a great place to search, share, and find answers to your questions.
Advanced UV Editing
Silo offers multiple types of unwrapping, including LSCM, Planar Region, XYZ, Per Face, and By Neighbors, which heals UVs based on the UVs based on the surrounding area. Different unwrapping methods can even be used on parts of the same mesh for optimal results. UVs are preserved during modeling operations, so modeling and UV editing can be freely interchanged with little to no cleanup. (This is particularly useful when a last-minute modeling change needs to be made to a "finished" model.) Clutter is significantly reduced by allowing regular geometry editing tools (such as Break, Merge, Tweak, Slide, and Soft Selection) to be used to edit UVs wherever it makes sense. Even the displacement brushes, particularly the Smooth brush, are very useful when applied to smoothing out UVs.
Displacement Painting
Finally, brush-based displacement painting has been well-integrated into a traditional modeling environement. Silo's brushes integrate seamlessly with the rest of the modeling toolset. If the model is subdivided, the brushes will affect the subdivided shape directly, otherwise they will affect regular geometry. As with UVs, displacement is preserved where possible during modeling changes, so the brushes can be used alongside other tools as the model develops, rather than solely at the end of the process. Painting is smooth and natural, and works well with tablets. Displacement maps and normal maps can be generated and exported from any subdivision level, or even from two completely separate objects.
Retopology
With the popularity of displacement painting in Silo and other applications, as well as the common usage of 3d scanners, modelers are frequently asked to create a new, well-formed model with a high-poly shape for reference. This process is frequently known as retopologization, and Silo's Topology Tool provides an innovative solution by allowing users to directly draw new topology onto an object using a pen-like tool. Silo also offers Surface Snapping, which effectively turns every tool into a topology tool by snapping edited geometry to an underlying shape, and the Surface Tool, which allows users to quickly in interactively draw out and tweak strips of polygons.
Scene Editor
Complex Scenes can be easily managed in Silo via the Scene Editor, which displays the scene in a tree-like structure and allows layer-like editing of objects and groups. Selection, display mode, locking, and visibility can all be quickly modified from the editor.
Numerical Editor
Silo offers precise numerical control of the position, rotation, scale, size, distance, and angle of selected geometry via the Numerical Editor.
Snapping
Three powerful snapping modes are available in Silo. Grid snapping snaps to the customizable workgrid, Component snapping snaps to the vertices, edges, and faces of an object, and Surface snapping smoothly snaps to the surface of unselected objects. These snapping modes affect nearly all geometry editing commands.
Silo in action.
Want to see more videos? Take a look at short videos showcasing Silo's Features and Tools, or dive into our collection of Silo Tutorials from artists like Glen Southern and more.
High-Poly Modeling
Low-Poly Modeling
Architectural Modeling
Perfect for learning.
There are many resources for learning Silo, such as the CGTalk Silo forums, the Silo forum archives, and the 3D Modeling Wiki. Not to mention our YouTube Channel and the Online Silo Manual. Get started today by downloading the 30-day free trial, which automatically converts to a special learning version after it expires.

Silo Tools Series (Beginner)
Learn the basics of modeling in Silo, including creating, viewing, selecting, and modifying 3D objects. Then watch short videos demonstrating some of Silo's key tools and features. Watch Series
Glen Southern's Alien: Point-by-Point Modeling Series (Advanced)
Glen Southern models an alien using a point-by-point technique. Includes text explanations, links to Wiki content, and additional model files and reference images. Nine part series. Watch Series
Glen Southern's Minotaur: Box Modeling Series (Advanced)
Box modeling series in which Glen Southern models a minotaur. Includes text explanations, links to Wiki content, and additional model files and reference images. Ten part series. Watch Series
Modeling A Car by Matt Connors (Intermediate)
Matt Connors models an Austin-Healey Sprite in Silo. Series page includes text explanations, links to Wiki content, and additional model files. Four part series. Watch Series
Sword Creation by Mirko (Intermediate)
Mirko Haenssgen explains how to create a medieval sword in Silo. Series page includes text explanations and links to Wiki content. Two part series. Watch Series
Modeling Basics (Beginner)
Learn essential Silo concepts through simple modeling tasks. A great watch in conjunction with the Silo Tools tutorial video series. Watch Series
Glen Southern's Silo Fundamentals Series (Beginner)
Beginner series by Glen Southern meant to teach the Silo fundamentals. Series page includes text explanations and links to Wiki content. Eleven part series. Watch Series
GuerrillaCG 3D Modeling Series (Beginner)
A great set of modeling tutorials put together by Guerrilla3G; take a look and learn about the basic concepts in 3D modeling. (Not Silo-specific.) Five videos: The Polygon, Multisided Polygons, Objects, Primitives, and Subdivision Artifacts. Watch Series
A step-by-step guide to 3D modeling in Silo.
The best way to learn is by doing. Antony Ward and Nevercenter teamed up to take you step-by-step from an empty screen to a high-quality character model, offering an extensive introduction to Silo's interface, tools, and workflow along the way. Available now from Amazon.com.
Watch & Learn
Check out our YouTube Channel for tutorials and more. There are also excellent free 3D modeling tutorials available on our site.
Support
Have some questions? Visit the Support pages. You can also consult the Online Silo Manual and ask on the Silo Forums.
More Resources
The 3D Modeling Wiki is a great learning resource. Although closed to new posts, the Silo3D Forum Archives are open for reference.
Stay Connected
Join the Silo community on the CGTalk Silo Forums and sign up for the Updates Newsletter to keep up-to-date on the latest developments.
© Nevercenter 2016 | Support & FAQ | Press Info
Purchase Silo 2 Pro Win/Mac/Linux
OS-independent license(s) at $159 US each
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*Note: Unfortunately, discount codes cannot be auto-applied using PayPal. However, if you email us with your discount code after you have placed your order, we will happily apply your discount manually through a refund.

Download Silo
Thanks! You can use Silo free for 30 days with no restrictions.

After the trial period expires you can continue to use Silo as a learning version which will let you modify and save models with fewer than 50 polygons.

Please select the version for your system:

Windows 7 or newer, 32-bit
Windows 7 or newer, 64-bit
Mac OS 10.8 or newer
Linux (64-bit, supported systems below)


System Requirements
  • Windows 7 or newer, 32- or 64-bit
  • Mac OS 10.8 or newer, 64-bit Intel*
  • Red Hat Enterprise Linux / CentOS 6+, Fedora 16+, or Ubuntu 14.04+ (x86-64)
  • 400 MHz cpu (1 GHz recommended), 512 MB RAM (1 GB recommended), 20 MB hard drive space
  • Graphics card supporting 1024 x 768 x 16-bit color and OpenGL (24 or 32 bit color recommended)
  • Two-button mouse (three-button mouse or two-button mouse with scroll wheel recommended)


*Running Mac OS 10.4 or earlier, or have a Power PC Mac? Please download Silo 2.1.1.

Silo Release Notes