XP Six

• creating a new XP node class
• the AvatarDCS class
• this class moves objects along a path defined by keyframes
• the keyframe paths are in a text file which the class reads
• keyframes consist of position/orientation/scale information
• the class can read multiple keyframe textfiles
• thus avatarDCS can move on multiple paths
• the keyframe textfiles and names for each path are defined in the scenefile
• messages sent to the avatarDCS node use these names & cause the node to follow the corresponding path
• the avatar class
• sends messages to its avatarDCS children
• examples at
• scenefile - ~anstey/XP_CLASS/DATA/scenes/movement_examples
• code  and RUN.movement - ~anstey/XP_CLASS/src2

XP Seven

• using GL callbacks

XP Eight

• morpher class (geoInterp)
• textfile
• some notes on interpolation
• geoInterp.cxx
• geoInterp.h

XP Nine

• bringing mmbFader and mmbGhost classes into the current XP
• Fader is a generic class that changes the alpha value of an object
• Ghost uses Fader to alter the value as the user approaches - so an object becomes transparent as the user gets close
• see ~anstey/XP_CLASS/src2 and ~anstey/XP_CLASS/DATA/scenes/ghost_example

XP Ten

pfMatrix - checking out its functions in the man pages

writing an xp class using a pfMatrix function - faceUser

users xpUser class

writing an xp class to keep an object within the CAVE area as it moves through the environment - useful for keeping tools/equipment etc with the user

see ~anstey/XP_CLASS/src2 and ~anstey/XP_CLASS/DATA/scenes/face_example