A body lightmap in Photoshop is a texture map that is used to define the way that light interacts with a 3D model. It is a grayscale image that is applied to the model, and it determines how much light is reflected or absorbed by each part of the model. This information is used by the rendering engine to create a more realistic and detailed image of the model.
Creating a body lightmap in Photoshop can be a complex and time-consuming process, but it is an essential step for creating high-quality 3D models. There are a number of different techniques that can be used to create a body lightmap, and the best technique will vary depending on the specific model and the desired results. However, some general tips for creating a body lightmap in Photoshop include: