--- title: "Retopology for Games: What It Is and How to Do It in Blender" description: "Retopology explained for game artists: what it is, why sculpts need it, and how to do clean retopology in Blender with edge loops that deform well." --- [Go Back Up](https://cada-edu.com/guides/retopology-for-games-what-it-is-and-how-to-do-it-in-blender#top) [Skip to Content](https://cada-edu.com/guides/retopology-for-games-what-it-is-and-how-to-do-it-in-blender#body) [![Copenhagen Academy of Digital Arts](https://cada-edu.com/hs-fs/hubfs/Logo_CADA_White_AlphaHD.png?width=200&height=60&name=Logo_CADA_White_AlphaHD.png "Copenhagen Academy of Digital Arts")](https://cada-edu.com/) Toggle Menu - [Educations](https://cada-edu.com/educations) Toggle children for Educations Main Menu (Press to Return) \> Educations - [Certificate in 3D for Games](https://cada-edu.com/certificate-in-3d-for-games) - [Diploma / BA (Hons) Degree](https://cada-edu.com/3d-digital-artist) - [Courses](https://cada-edu.com/courses) Toggle children for Courses Main Menu (Press to Return) \> Courses - [Free 3D Bootcamp](https://cada-edu.com/3dbootcamp) - [3D Animation Essentials](https://cada-edu.com/3d-animation-essentials) - [3D Portfolio Essentials](https://cada-edu.com/3d-portfolio-essentials) - [Sculpting in ZBrush](https://cada-edu.com/sculpting-in-zbrush-course) - [Unreal Engine for Filmmaking](https://cada-edu.com/unreal-engine-filmmaking-virtual-production) - [Continuing Education](https://cada-edu.com/continuing-education) - [Contact Us](https://cada-edu.com/contact) - Resources Toggle children for Resources Main Menu (Press to Return) \> Resources - [News](https://cada-edu.com/news) - [Guides](https://cada-edu.com/guides) - [Book Meeting](https://meetings-eu1.hubspot.com/adam-mayes) # Retopology for Games: What It Is and How to Do It in Blender [mailto:?subject=Retopology%20for%20Games%3A%20What%20It%20Is%20and%20How%20to%20Do%20It%20in%20Blender&body=https%3A%2F%2Fcada-edu.com%2Fguides%2Fretopology-for-games-what-it-is-and-how-to-do-it-in-blender](mailto:?subject=Retopology%20for%20Games%3A%20What%20It%20Is%20and%20How%20to%20Do%20It%20in%20Blender&body=https%3A%2F%2Fcada-edu.com%2Fguides%2Fretopology-for-games-what-it-is-and-how-to-do-it-in-blender) You have finished a sculpt. It looks great in the viewport, but it is three million polygons, the surface is a tangle of tiny triangles, and nothing about it is ready for a game. Retopology is the step that fixes that. It is one of the least glamorous jobs in 3D, and something art leads look at closely in a portfolio. ## What is retopology? Retopology means building a new, clean mesh over the top of an existing one. The new mesh follows the same shape, but it uses far fewer polygons, and those polygons are laid out on purpose. **Topology** is the layout of a mesh: where the vertices, edges and faces sit and how they flow across the surface. A sculpt has topology that suits sculpting, which usually means millions of evenly sized polygons with no structure. A game model needs topology that suits a real-time engine and, for characters, animation. So in practice you end up with two versions of the same asset: - **The high poly**: your sculpt or detailed model, with all the wrinkles, pores, scratches and small shapes. - **The low poly**: the clean retopologised mesh that actually goes into the game engine. The detail from the high poly is then baked into texture maps, mainly a normal map, and applied to the low poly. In the engine, the low poly looks almost as detailed as the sculpt, at a fraction of the cost. If you are new to 3D and terms like vertex, edge loop and edit mode are still unfamiliar, get comfortable with basic modelling first. The free [Blender 3D Bootcamp](https://cada-edu.com/3dbootcamp) covers Blender basics and modelling with core tools in six live online sessions, and retopology will make far more sense afterwards. ## Why game assets need retopology For anything that animates, and for most game assets, retopology is not optional. Unreal Engine 5's Nanite can handle very dense static meshes, but it does not remove the need for clean topology on characters. A raw sculpt fails in four ways. ### Performance Games draw every frame in a few milliseconds. Every polygon on screen costs time, and a scene is full of characters, props and environment pieces competing for the same budget. Studios set polygon budgets for each asset type, and your low poly has to land inside them. ### Animation and deformation Characters bend at the elbows, knees, shoulders and face. A mesh only deforms cleanly if its edge loops follow those joints and the muscles around them. Random sculpt topology creases, pinches and collapses as soon as it is rigged. Good retopology is what makes a character animatable, which is why riggers and animators care about it as much as modellers do. ### UVs and texturing You cannot sensibly UV unwrap a mesh with millions of faces. Clean topology gives you natural places for seams and even, predictable UV islands. Retopology and UVs go hand in hand, and our guide to [UV mapping for games in Blender](https://cada-edu.com/guides/uv-mapping-for-games-how-to-uv-unwrap-a-model-in-blender) picks up exactly where this guide stops. ### Baking Normal map baking projects detail from the high poly onto the low poly. The low poly needs to follow the high poly's silhouette closely, or the bake produces errors and smeared detail. Retopology is where you control that fit. ## What good game topology looks like Good topology is not the same as dense or perfectly even topology. It is topology that does its job for the lowest reasonable cost. These are the rules worth learning first. ### Spend polygons on the silhouette The outline of a model is the one thing a normal map cannot fake. Put your polygons where they change the silhouette: the curve of a shoulder, the rim of a helmet, the edge of a sword guard. Large flat or gently curved areas need very few. Fine surface detail like stitching, pores or engraved panels belongs in the normal map, not in the mesh. ### Use quads where things bend Quads (four-sided faces) give you clean edge loops, which make editing, UVs and deformation predictable. On characters, aim for mostly quads, especially around joints and the face. Game engines turn everything into triangles in the end, so a few triangles in flat areas that never bend are fine. Avoid n-gons (faces with more than four sides) on anything you export, because they triangulate unpredictably. ### Put edge loops around joints and the face Elbows and knees need a few loops across the joint so they hold volume when they bend. Shoulders and hips need loops that follow the direction the limb rotates. On a face, the classic layout is loops around the eyes and mouth, plus a loop from the nose down past the corners of the mouth. These are what let a facial rig open the jaw, blink and smile without the mesh tearing. ### Control your poles A pole is a vertex where three, or five or more, edges meet instead of four. You cannot avoid them, but you can choose where they go. Keep them in flat areas that do not deform much, not in the middle of an elbow or the corner of the mouth, where they cause pinching. ### Know your target Retopology for a hero character is not the same as retopology for a background crate. Static props can be far more economical, with triangles and fewer loops. A main character needs careful deformation loops and more budget. Before you start, decide what the asset is for and how close the camera will get. ## How to do retopology in Blender, step by step Blender has everything you need for manual retopology built in. This is a reliable workflow for a character or organic prop. The high poly usually comes from a sculpt, and sculpting in Blender is the core of the 3D Art specialisation in our [Certificate in 3D for Games](https://cada-edu.com/certificate-in-3d-for-games). ### 1. Prepare the high poly Apply any modifiers you need on the sculpt and make sure its scale is applied. Disable selection on it so you do not edit it by accident. If the sculpt is extremely heavy, work from a decimated copy for retopology and keep the full version for baking. ### 2. Create the new mesh and set up snapping Add a plane, go into edit mode, press M and merge it to a single vertex at the centre. Turn on snapping with the magnet icon in the viewport header and set Snap To to Face Project (Blender 4.0 and later), so every vertex you place lands on the surface of the sculpt. Then open the Overlays menu in edit mode and turn on Retopology (Blender 3.6 and later). It shows your new mesh on top of the sculpt instead of hiding it inside, which makes the whole job much easier to see. ### 3. Use mirroring for symmetrical models For a character or symmetrical prop, add a Mirror modifier to the new mesh with clipping enabled. You only build one half, and the centre vertices stay locked to the middle line. ### 4. Block in the main loops first Do not start at one corner and fill outwards face by face. Lay down the important loops first: around the eyes and mouth, round the neck, the shoulders, the elbows, wrists, knees and the waist. Think of them as the skeleton of your topology. Then connect them. Extruding edges with snapping on, plus the Poly Build tool in the edit mode toolbar for adding and adjusting faces quickly, will cover most of this work. ### 5. Fill the gaps and relax Fill the areas between the main loops with quads, managing your poles as you go. Use relax and smoothing tools to even out the spacing, then check that the mesh still sits on the sculpt. A Shrinkwrap modifier targeting the high poly, placed below the Mirror modifier in the stack, is a quick way to pull the low poly back onto the surface after editing. Keep an eye on the centre seam when you do. ### 6. Check it like a game artist Look at the result in solid shading from several angles. Check the silhouette against the high poly. Count the triangles against your budget. If it is a character, do a rough test bend at the elbows and knees with a simple rig before you commit to UVs and baking. Problems are cheap to fix now and expensive after texturing. Once the low poly is final, you move on to UV unwrapping, then baking the normal map and other maps from the high poly, then texturing. If you later rig the character, the loops you planned here are what make the skin weights behave. ## Automatic retopology: when it is good enough There are automatic options: Blender's QuadriFlow remesh, ZBrush's ZRemesher, and a growing number of add-ons and AI tools. They take a dense mesh and produce a mostly quad mesh in seconds to minutes. Our advice is simple. Use automatic retopology for things that do not deform and are not seen up close: rocks, background props, blockouts, and quick test bakes. Do not rely on it for hero characters or faces. Automatic tools do not know where an elbow bends or how a mouth opens, so the loops rarely land where animation needs them. Even when you start from an automatic result, plan on cleaning it up by hand. Learn manual retopology first. If you understand why loops go where they go, you can judge automatic results and fix them quickly. If you only know the button, you cannot tell good topology from bad, and neither will your portfolio. ## Common retopology mistakes beginners make - **Too many polygons.** Beginners often keep far more detail than the asset needs. If a loop does not change the silhouette or help deformation, remove it. - **Too few loops at joints.** One edge across an elbow will collapse when it bends. Give joints the loops they need. - **Poles in the wrong place.** A five-edge pole in the corner of the mouth or the crease of a knee will pinch. - **Floating vertices.** Vertices that drift off the high poly surface cause bake errors. Keep snapping on and shrinkwrap back regularly. - **Retopologising detail the normal map should carry.** Buttons, seams and small panels usually belong in the bake, not in the mesh. ## What studios look for in your topology Art leads often ask to see wireframes in a portfolio, and they look at them closely. They want to see three things. First, that your topology serves the asset: sensible density for its role, polygons spent on the silhouette, and deformation loops on anything that animates. Second, that you can hit a budget, so state the triangle count next to the wireframe. Third, that the whole chain works: clean low poly, sensible UVs, a clean bake and good texturing in a game engine. A strong sculpt with no low poly shows half the job. A modest sculpt taken all the way to a game-ready asset shows you can work in production. Show the high poly, the low poly wireframe, the UV layout and the final asset in the engine side by side. That one sheet tells a lead more than ten pretty renders. ## Start building game-ready assets Retopology is where a sculpt becomes a game asset. It takes practice, but the rules are learnable: spend polygons on the silhouette, put loops where things bend, control your poles, and always work to a budget. If you are just starting out in 3D, join the free [Blender 3D Bootcamp](https://cada-edu.com/3dbootcamp). It is six live online sessions, needs no experience, and gives you the modelling basics that retopology builds on. If you are ready to commit to a career in game art, the [Certificate in 3D for Games](https://cada-edu.com/certificate-in-3d-for-games) is a 60-week online programme with weekly live feedback and team projects, from a walkable story environment to a vertical slice. No 3D experience or portfolio is needed to apply. ## CADA ## Ready to Transform your Business with Little Effort Using Brightlane? [Register Now](https://www.example.com) You May Like These ## Related Articles --- [![Copenhagen Academy of Digital Arts](https://cada-edu.com/hs-fs/hubfs/Logo_CADA_White_AlphaHD.png?width=200&height=60&name=Logo_CADA_White_AlphaHD.png "Copenhagen Academy of Digital Arts")](https://cada-edu.com) **Nyropsgade 23, 4. 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