The Moving Image.
Massive Decoding Power
To achieve simple, photorealistic virtual backgrounds, start with real, high resolution moving images. Using high bitrate MPEG2 files, Previzion is capable of decoding up to 3 1920x1080 video files simultaneously at 29.97 frames/second.
Previzion’s FBX scene loader automatically detects when a texture has been specified to connect to recorded video source if the texture is named with the “video_” prefix, and connects the texture to Previzion’s decoding engine.
Video files on the local hard drive can be changed on the fly – just click on the texture name (Previzion provides a list of the special video textures), and select the new file from the drive. Individual videos can be paused, video in and out points can be specified, and multiple video files can be triggered to start in synchronization for backgrounds captured from multiple cameras simultaneously.
Unhindered Creative Freedom
Since the video texture is applied and aligned using UV maps just like any other texture, sophisticated scene files can be authored in standard digital content creation packages that are already in use at your studio. Maya, 3ds max, Softimage, and others all support the FBX file format, which Previzion reads natively. The above image is simply a HD video texture mapped onto the simple polygon mesh below.
In addition, if the underlying geometry is parented to an editable null using the “edit_” name modifier, Previzion enables on-the-fly movement of video mapped geometry to better fit the scene. Adjust horizons and background scaling on the fly at the shoot, and spend more time working creatively instead of fussing with files.