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SkySphere
In some large games, there are several essential elements such as the sky earth houses and lawns, it is because of the presence of these elements that the scene is extra realistic, the sky The sky can be seen as a large container that surrounds the whole world. It is very simple to simulate the sky, which is usually convolved into a sphere and stored as a picture. The sky is usually convolved into a sphere, stored as an image, and rendered by reading the texture to render the sky background, for which we call the Sky box, one of the most widely used techniques for various real-time renderings. In Ray-MMD, there are four options for simulating the sky sphere: Image-Based lighting, Sky Hemisphere, Sky Night, In addition, since the sky is illuminated in numerous directions, each direction can be used as a contribution to the model lighting. Therefore, it is almost impossible to calculate the ambient light shadows in real time, and the game will use baked ambient light occlusion mapping and Screen Space Ambient Occlusion to simulate myopia.