Quicktime File Format (2012-08-14).pdf

Media Data Atom TypesNode Information Atom ContainernameAtomIDThe ID of the string atom that contains the name of the hot spot. This atom should be a sibling of thehot spot information atom. This string is displayed in the QuickTime VR controller bar when the mouseis moved over the hot spot.commentAtomIDThe ID of the string atom that contains a comment for the hot spot. This atom should be a sibling of thehot spot information atom. The value of this field is 0 if no comment string atom exists.cursorIDAn array of three IDs for custom hot spot cursors (that is, cursors that override the default hot spot cursorsprovided by QuickTime VR). The first ID (cursorID[0]) specifies the cursor that is displayed when it isin the hot spot. The second ID (cursorID[1]) specifies the cursor that is displayed when it is in the hotspot and the mouse button is down. The third ID (cursorID[2]) specifies the cursor that is displayedwhen it is in the hot spot and the mouse button is released. To retain the default cursor for any of theseoperations, set the corresponding cursor ID to 0. Custom cursors should be stored in the VR world atomcontainer, as described in “VR World Atom Container” (page 268).bestPanThe best pan angle for viewing this hot spot.bestTiltThe best tilt angle for viewing this hot spot.bestFOVThe best field of view for viewing this hot spot.bestViewCenterThe best view center for viewing this hot spot; applies only to object nodes.hotSpotRectThe boundary box for this hot spot, specified as the number of pixels in full panoramic space. This fieldis valid only for panoramic nodes.flagsA set of hot spot flags. This field is unused.reserved1Reserved. This field must be 0.reserved2Reserved. This field must be 0.2012-08-14 | © 2004, 2012 Apple Inc. All Rights Reserved.279