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RealFlow cameras actually work like any other camera inside 3D programs – they are similar to pinhole cameras. Of course, there are already sophisticated cameras (e.g. in Maxwell Render), representing complete lens systems, but that is more a feature for rendering, not for fluid and object dynamics. RealFlow cameras have a basic, yet adequate set of functions and they are also suitable for previews with the integrated Maxwell “FIRE” engine. When a Maxwell preview is rendered using the Command Line version RealFlow will first check if the scene contains a camera (Maxwell previews – not the FIRE option – always need a camera). If the camera is missing a warning appears and the render process will not start.
To switch to camera view, the fastest method is to grab the camera object from the "Node" panel and drag it to the viewport. Another method is to press the 5 key or right-click into the viewport and select the appropriate camera:
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