Programming with QuickTime VR

Panorama-Imaging Atom Structure

A panorama-imaging atom describes the default imaging characteristics for all the panoramic nodes in a scene. In addition, if contained in a node atom, a panorama-imaging atom contains default settings for a particular panoramic node (which override the scene-wide defaults). The structure of a panorama-imaging atom is defined by the VRPanoImagingAtom data type:



 
typedef struct VRPanoImagingAtom {

    UInt16                              majorVersion;

    UInt16                              minorVersion;

    UInt32                              imagingMode;

    UInt32                              imagingValidFlags;

    UInt32                              correction;

    UInt32                              quality;

    UInt32                              directDraw;

    UInt32                              imagingProperties[6];

    UInt32                              reserved1;

    UInt32                              reserved2;

} VRPanoImagingAtom, *VRPanoImagingAtomPtr;

majorVersion: The major version number of the file format.
minorVersion: The minor version number of the file format.
imagingMode: The imaging mode to which the default values apply. See handlink "QuickTime VR Manager/Imaging Modes" for a description of the available imaging modes. A VR world can contain more than one panorama-imaging atom if static and motion modes are assigned different default values for any imaging properties.
imagingValidFlags: A set of flags that indicate which imaging property fields in this structure are valid. See "Imaging Property Valid Flags" for a description of the available flags.
correction: The default correction mode for panoramic nodes. See handlink "QuickTime VR Manager/Correction Modes" for a description of the available correction modes.
quality: The default imaging quality for panoramic nodes. See handlink "QuickTime VR Manager/Quality Properties" for a description of the available imaging qualities.
directDraw: The default direct draw property for panoramic nodes. See handlink "QuickTime VR Manager/Imaging Property Types" for a description of the available direct draw property values.
imagingProperties: Reserved for future panorama-imaging properties.
reserved1: Reserved. This field must be 0.
reserved2: Reserved. This field must be 0.