![]() Instead of specifying a color for a shader, you can use a color map. ![]() A shader or material might be so simple as to specify only a color (although the rendering engine will usually be making certain assumptions about other characteristics). You will explore this process in depth this when you learn Maya. In fact, they may be applied at the same time: game editors and 3D packages tend to group various surface characteristics into sets that are often called materials or shaders. Most maps (with the exception of light maps) are applied in the same manner as texture maps. You will usually use the color map as reference when creating other types of maps, possibly working in separate layers in Photoshop. They can be made in Photoshop or any other image editing software. Most maps are, like texture maps, simply digital images. When the bump map is applied, the texture pops out. Īll of these maps can be used together to make the game world look more realistic. Finally, the lighting for the entire environment is calculated and stored in an image file: a light map. Specularity maps can make objects more or less shiny. Varying levels of transparency can be mapped onto a single surface using transparency maps. Certain shiny, reflective surfaces can be simulated using environment maps (sometimes called reflection maps). Bumps can be mapped onto surfaces using bump maps. Objects in the real world have various characteristics beyond color, and many of these characteristics can be simulated in game engines as well. Other types of maps will quite often be used in conjunction with texture maps to make a game environment more interesting and realistic. With a texture map, a 2D bitmap image with texture information (it could be a sample of wood, glass, or stone) is mapped to a surface and repeated. By applying a color map you are "mapping" certain colors to certain parts of the surface. In a 3D package like Maya or 3ds Max, a texture or color map is used to apply color to a surface. Texture maps are sometimes called color maps, and this is probably a more accurate name than texture maps. Texture maps are important, but they're only one of several different kinds of map that may be applied to surfaces with a game. In order to learn how texture tiles work, we need explore the different kinds of maps used in creating today's video games.
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