Islands are isolated pieces of geometry when pieced together can form the model again. Anywhere where the seams meet will create what are referred to as Islands. These seams will dictate how the model is cut up and placed on the 2d UV. In this example we will cover a manual method in Blender.Īt this stage you will place the seams on your model. How to Create a UV MapĬreating a UV map is actually quite simple. If you plan is to simply sculpt, texture and render within a program such as Zbrush there is no need for a UV Map. This means if you wish to take your model into a game engine for instance you will not be able to utilize Texture Maps such as Normal Maps or Color Maps at all!! However if you are planning on using the model outside of Zbrush you may have trouble. Programs such as Zbrush allow you to paint on your model without first having a UV Map. You would be surprised what you can achieve with them. If you are interested in the various Texture Maps I encourage you to check out this article I wrote outlining them. These are only a small portion or the types of texture maps. These can include coloring your model, dictating how shiny it is and even to alter the geometry of the model through maps known as Normal Maps. Texture Maps come in various forms and can have various functions. It is equivalent to just having the wire frame of your model. Having a UV alone won’t change the appearance of your model. The main use for UV’s are primarily to create what are referred to as Texture Maps. While this may sound intimidating especially to create it is actually a lot easier than it sounds. You can use any program capable of editing images.īecause UV’s are a standardized process throughout the 3d industry this means some render engines and 3d software require them in order to render the 3d model. This is particularly useful as this means you don’t need a 3d application to paint the cube. This new flat shape can still be reassembled into the cube however you now have a base which you can apply color or various textures to. The best way to visualise this is if you had a cube and you cut along several of the edges you would be able to lay it out flat also known as Unwrapping. What is a UV MapĪs I have mentioned a UV map is a 2d representation of a model. In this article we will cover in more detail what a UV Map is, what they can be used for and how you can create one. The purpose of a UV Map is to have a standardized base to interact with the appearance of the model regardless of what render engine is used. The term UV Map is something you will hear used quite often but what exactly is it?Ī UV map is a 2d representation of a 3d model. It is likely when you first start 3d modelling you are going to hear and read a lot of odd terminology and this can quickly make you feel in over your head.
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