The last step is to make sure all the UVs are running in the same direction and then use Polygons>Unfold to minimise any UV stretching вЂ“ you may want to pin the borders as you do this. This merges all the strips together, so we can pull the Islands out. Next, select the model and hit Merge and Sew.

Combine all the hair strips and then select Polygons>Unitize in the UV Texture Editor. You can fix any errors in Maya and then continue to UV the hair.

In the screenshot you can see that a square piece hasnвЂ™t welded. This should show quite clearly what needs fixing in your 3D application. Run a quick UV Master on it to double-check all the points are welded. Now you should only be left with the hair, so you can start looking for errors. Weld the points, Autogroup again, then hide the head and split. The next step is to separate out the proxy head and get the model ready for UVs. Once youвЂ™re happy with the hair, you can start preparing it for UVs. Keep checking on your concept sculpt throughout to make sure youвЂ™re sticking close to it. If you set this to Topological, you can easily isolate single strips. Make sure you weld points and Autogroup like before for easier editing with the Move brush. Step 06 вЂ“ Finish the hair in ZBrushД«y working our way around the model and trying to close as many gaps as possible, we can start to finish up this stage. Always remember you can use the Move brush if needed. When editing the hair, use a large brush size over the curve (Blue reticule) so it creates a smooth transition. Start by laying down the underlying hair and working your way up. For this I prefer to duplicate the head sculpt and drop it down to a low subdivision level before deleting all subdivisions вЂ“ make sure this is a duplicate so you donвЂ™t lose your head sculpt. With the concept sculpt done we can start laying down our base for the hair strips. This block-in mesh is only going to be used as a guide when laying out our Alpha strips, so we donвЂ™t need to be too detailed and can concentrate mainly on the style and look of the hair. This is a very important step as it will determine the look of our character and also help us decide on how we will go about laying out the hair strips. Once youвЂ™re happy with the head sculpt, start by creating a DynaMesh hairstyle. This means that the brush is working correctly. Then when you Autogroup, every hair strip should be in its own PolyGroup. To do this, lay a few strips on a plane and then, when youвЂ™re happy, go to Tool>Geometry>Modify-Topology>Weld-Points. Make sure the depth is correct so that you can layer the strips on top of one another and that the points are welding nicely. Now we should be able to test the brush and make sure itвЂ™s working correctly before saving it for use later. This is so that the meshes weld together during each stroke. You may need to increase the Curve Res as well. Start by turning on Curve Mode in the Stroke setting, then clicking on Brush>Modifiers>Stretch/Weld Points. With the mesh locked in, we just need to play with some settings. With the mesh snapped into place in the viewport, you can hit Brushes>Create InsertMesh. In ZBrush we need to duplicate the SubTool for the brush to work, or you can also add new meshes that might help later on, such as a single strip brush instead. These meshes must be flush with one another and assigned their own PolyGroups in ZBrush. I prefer to add a slight curve to the top, so it replicates the natural curve from the root. In your 3D app of choice all you need to do is create a start, a middle, and an end. This is going to be the basis of our Alpha cards, so is very important to get right early on. For more of his excellent work, head to Step 01 вЂ“ Prepare your IMM brush There are also a few tricks to learn to help make hair more believable within Toolbag 2. WeвЂ™ll finish the tutorial in Marmoset Toolbag 2, which is a real-time PBR renderer. The idea behind this workflow is to keep the process as artistic as possible, so weвЂ™ll be working in ZBrush often, using InsertMultiMesh brushes for laying down our Alpha strips and also in creating believable hair that can be baked down for the texturing process. Here youвЂ™ll build medium- to long-length hairstyles in line with the latest videogame techniques and specifications. Through clever use of ZBrush, we can streamline the process and create a hairstyle from scratch in a few hours. Making believable real-time hair for games is often a very technical task, usually requiring the use of specialist in-house hair solutions or lots of fiddling with curves.

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