You can probably have on screen keys or object in the scene that the user can click on to adjust the anti-aliasing based on the script associated to it. I'm making an assumption here as I haven't used presenter.
VRED is offered in three versions, VRED, VRED server and VRED presenter. The target users are high end visualizers. They have some unique features like direct rendering of nurbs surfaces and measured materials for photorealistic rendering. Even if the product is quite expensive compared to other rendering products, it is worth a look if you have to work with CAD data e.g. in the automotive visualization. Here alone the import of complex CAD data and prepare them for rendering is expensive. The measured materials can produce highly realistic images in quite short time frame. VRED can do spectral rendering.
This showcase is set up to feature a real-life presenter, composited on the fly behind a virtual desk inside a virtual soundstage. You can leverage the same concept and setup to support other use cases for bringing live video into an Unreal Engine Level and capturing the rendered results to an output feed.
Each of the two video input planes behind the presenter's desk is set up using a Media Bundle: VirtualSet/Media/VideoBundle_01 and VirtualSet/Media/VideoBundle_02. Each of these bundles has a corresponding folder that holds its Media Framework Assets, named with the _InnerAssets suffix.
The Media Bundles are placed behind the central desk with the intention of putting a seated presenter into the virtual 3D Level. In order to make this effect work, you'll need to remove the background behind the presenter in your input video stream. To do this, you typically record the presenter seated in front of a green screen (or blue screen), and remove the background through chroma-keying or luminance filtering.
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