What plug-in does 3ds max use to make realistic flame effect, explosion and smoke?

FumeFX is using this plug-in. Fumefx is a powerful plug-in for fluid dynamics simulation, and its powerful fluid dynamics engine can simulate real and common gas phenomena, such as fire, smoke and explosion. Simulating the complex motion of fluid and making fluid special effects animation have always been applied in various fields of computer graphics, and are also a relatively extensive research topic in computer graphics. Moreover, fluid effects have always been a wound of 3ds Max, which can't compete with Maya fluid effects [1] [2]. The main reason is that 3ds Max has not integrated the built-in fluid dynamics operation engine at this stage, which leads people to need to use an independent fluid plug-in such as Realflow to achieve the fluid effect in 3ds Max. Although the effect is satisfactory, if Realflow is combined with the dynamics, script and particle system of 3ds Max, it is obviously inconvenient to operate without the built-in plug-in fluid mechanics, and the existing built-in plug-in fluid mechanics of 3ds Max is not satisfactory, so we rarely see a case of realizing the fluid effect through 3ds Max in a blockbuster.