Three-dimensional cloud infrared calculation method based on texture

The invention discloses a texture-based three-dimensional cloud infrared calculation method, which comprises the following steps of: generating a normal vector of each spherical surface in a football model according to the football model; according to preset parameters of the three-dimensional cloud and the normal vector of each spherical surface, respectively generating a texture map of the three-dimensional cloud consistent with the normal direction of each spherical surface; respectively placing the texture maps of the three-dimensional cloud consistent with the normal direction of each spherical surface at the preset center position of the three-dimensional cloud in a scene editor; one texture map is selected from all the texture maps and marked as an infrared cloud map, and one texture map different from the infrared cloud map is selected from all the texture maps and marked as an infrared cloud shadow; obtaining a gray value of an intersection point of the ray of the analog detector and the infrared clo