Merge remote-tracking branch 'upstream/master' into agentlist-array

eve/src/main.cpp

@@ -124,7 +124,6 @@ int main(int argc, const char* argv[]) {
     eve.setHandPosition(glm::vec3(eve.getPosition()[0] - 0.2,
                                   0.25,
                                   eve.getPosition()[2] + 0.1));    
-    
     // read eve's audio data
     AudioInjector eveAudioInjector("eve.raw");
     
@@ -139,6 +138,8 @@ int main(int argc, const char* argv[]) {
 //    int numIterationsLeftBeforeAudioSend = 0;
 //    pthread_t injectAudioThread;
     
+    int handStateTimer = 0;
+
     while (true) {
         // update the thisSend timeval to the current time
         gettimeofday(&thisSend, NULL);
@@ -171,6 +172,18 @@ int main(int argc, const char* argv[]) {
         if ((numMicrosecondsSleep = (DATA_SEND_INTERVAL_MSECS * 1000) - (usecTimestampNow() - usecTimestamp(&thisSend))) > 0) {
             usleep(numMicrosecondsSleep);
         }   
+                                    
+        // simulate the effect of pressing and un-pressing the mouse button/pad
+        handStateTimer++;
+        if ( handStateTimer == 100 ) { 
+            eve.setHandState(1);
+        }   
+        if ( handStateTimer == 150 ) { 
+            eve.setHandState(0);
+        }   
+        if ( handStateTimer >= 200 ) { 
+            handStateTimer = 0;
+        }   
     }
     
     // stop the receive agent data thread

injector/src/main.cpp

@@ -42,7 +42,7 @@ void usage(void)
     std::cout << "   -c FLOAT,FLOAT,FLOAT,FLOAT     X,Y,Z,YAW position in universe where audio will be originating from and direction. Defaults to 0,0,0,0" << std::endl;
     std::cout << "   -a 0-255                       Attenuation curve modifier, defaults to 255" << std::endl;
     std::cout << "   -f FILENAME                    Name of audio source file. Required - RAW format, 22050hz 16bit signed mono" << std::endl;
-};
+}
 
 bool processParameters(int parameterCount, char* parameterData[])
 {
@@ -91,9 +91,9 @@ bool processParameters(int parameterCount, char* parameterData[])
         }
     }
     return true;
-};_Position
+};
 
-int main(int argc, const char* argv[]) {
+int main(int argc, char* argv[]) {
 
     srand(time(0));
     int AUDIO_UDP_SEND_PORT = 1500 + (rand() % (int)(1500 - 2000 + 1));

interface/src/Audio.cpp

@@ -157,7 +157,7 @@ int audioCallback (const void *inputBuffer,
             
             // memcpy the three float positions
             for (int p = 0; p < 3; p++) {
-                memcpy(currentPacketPtr, &data->linkedHead->getPosition()[p], sizeof(float));
+                memcpy(currentPacketPtr, &data->linkedAvatar->getPosition()[p], sizeof(float));
                 currentPacketPtr += sizeof(float);
             }
             
@@ -165,7 +165,7 @@ int audioCallback (const void *inputBuffer,
             *(currentPacketPtr++) = 255;
             
             // memcpy the corrected render yaw
-            float correctedYaw = fmodf(data->linkedHead->getRenderYaw(), 360);
+            float correctedYaw = fmodf(data->linkedAvatar->getRenderYaw(), 360);
             
             if (correctedYaw > 180) {
                 correctedYaw -= 360;
@@ -259,7 +259,7 @@ int audioCallback (const void *inputBuffer,
             //        rotation of the head relative to body, this may effect flange effect!
             // 
             //
-            int lastYawMeasured = fabsf(data->linkedHead->getLastMeasuredHeadYaw());
+            int lastYawMeasured = fabsf(data->linkedAvatar->getLastMeasuredHeadYaw());
             
             if (!samplesLeftForFlange && lastYawMeasured > MIN_FLANGE_EFFECT_THRESHOLD) {
                 // we should flange for one second
@@ -448,7 +448,7 @@ void Audio::setWalkingState(bool newWalkState) {
  * @return  Returns true if successful or false if an error occurred.
 Use Audio::getError() to retrieve the error code.
  */
-Audio::Audio(Oscilloscope *s, Head *linkedHead)
+Audio::Audio(Oscilloscope *s, Avatar *linkedAvatar)
 {
     // read the walking sound from the raw file and store it
     // in the in memory array
@@ -472,7 +472,7 @@ Audio::Audio(Oscilloscope *s, Head *linkedHead)
     
     audioData = new AudioData();
     
-    audioData->linkedHead = linkedHead;
+    audioData->linkedAvatar = linkedAvatar;
     
     // setup a UDPSocket
     audioData->audioSocket = new UDPSocket(AUDIO_UDP_LISTEN_PORT);

interface/src/Audio.h

@@ -12,12 +12,12 @@
 #include <portaudio.h>
 #include "AudioData.h"
 #include "Oscilloscope.h"
-#include "Head.h"
+#include "Avatar.h"
 
 class Audio {
 public:
     // initializes audio I/O
-    Audio(Oscilloscope *s, Head *linkedHead);
+    Audio(Oscilloscope *s, Avatar *linkedAvatar);
     
     void render();
     void render(int screenWidth, int screenHeight);

interface/src/AudioData.h

@@ -13,7 +13,7 @@
 #include <glm/glm.hpp>
 #include "AudioRingBuffer.h"
 #include "UDPSocket.h"
-#include "Head.h"
+#include "Avatar.h"
 
 class AudioData {
     public:
@@ -23,7 +23,7 @@ class AudioData {
 
         UDPSocket *audioSocket;
     
-        Head *linkedHead;
+        Avatar *linkedAvatar;
     
         // store current mixer address and port
         in_addr_t mixerAddress;

interface/src/Avatar.cpp

@@ -1,5 +1,5 @@
 //
-//  Head.cpp
+//  Avatar.cpp
 //  interface
 //
 //  Created by Philip Rosedale on 9/11/12.
@@ -11,7 +11,7 @@
 #include <vector>
 #include <lodepng.h>
 #include <SharedUtil.h>
-#include "Head.h"
+#include "Avatar.h"
 #include "Log.h"
 #include <AgentList.h>
 #include <AgentTypes.h>
@@ -41,14 +41,13 @@ vector<unsigned char> iris_texture;
 unsigned int iris_texture_width = 512;
 unsigned int iris_texture_height = 256;
 
-Head::Head(bool isMine) {
+Avatar::Avatar(bool isMine) {
     
     _orientation.setToIdentity();
     
 	_velocity           = glm::vec3( 0.0, 0.0, 0.0 );
 	_thrust		        = glm::vec3( 0.0, 0.0, 0.0 );
     _rotation           = glm::quat( 0.0f, 0.0f, 0.0f, 0.0f );	
-	_nearOtherAvatar    = false;
 	_bodyYaw            = -90.0;
 	_bodyPitch          = 0.0;
 	_bodyRoll           = 0.0;
@@ -60,7 +59,6 @@ Head::Head(bool isMine) {
     //_transmitterTimer   = 0;
     _transmitterHz      = 0.0;
     _transmitterPackets = 0;
-    //_numOtherAvatars    = 0;
 
     initializeSkeleton();
     
@@ -73,9 +71,6 @@ Head::Head(bool isMine) {
     _head.interPupilDistance  = 0.6;
     _head.interBrowDistance   = 0.75;
     _head.nominalPupilSize    = 0.10;
-    //_head.yaw                = 0.0;
-    //_head.pitch              = 0.0;
-    //_head.roll               = 0.0;
     _head.pitchRate           = 0.0;
     _head.yawRate             = 0.0;
     _head.rollRate            = 0.0;
@@ -108,15 +103,15 @@ Head::Head(bool isMine) {
     _head.lastLoudness        = 0.0;
     _head.browAudioLift       = 0.0;
     _head.noise               = 0;
-    
 	_movedHandOffset          = glm::vec3( 0.0, 0.0, 0.0 );
     _usingBodySprings         = true;
 	_springForce              = 6.0f;
 	_springVelocityDecay      = 16.0f;
     _renderYaw                = 0.0;
     _renderPitch              = 0.0;
-	
 	_sphere                   = NULL;
+    _interactingOther         = NULL;
+	_interactingOtherIsNearby = false;
     
     _handHolding.position = glm::vec3( 0.0, 0.0, 0.0 );
     _handHolding.velocity = glm::vec3( 0.0, 0.0, 0.0 );
@@ -129,19 +124,16 @@ Head::Head(bool isMine) {
             printLog("error %u: %s\n", error, lodepng_error_text(error));
         }
     }
-
-    _otherAvatar.handPosition = glm::vec3( 0.0f, 0.0f, 0.0f );
-    _otherAvatar.handState = 0;
 }
 
 
 
-Head::Head(const Head &otherAvatar) {
+Avatar::Avatar(const Avatar &otherAvatar) {
  
     _velocity                 = otherAvatar._velocity;
 	_thrust                   = otherAvatar._thrust;
     _rotation                 = otherAvatar._rotation;
-	_nearOtherAvatar        = otherAvatar._nearOtherAvatar;
+	_interactingOtherIsNearby = otherAvatar._interactingOtherIsNearby;
 	_bodyYaw                  = otherAvatar._bodyYaw;
 	_bodyPitch                = otherAvatar._bodyPitch;
 	_bodyRoll                 = otherAvatar._bodyRoll;
@@ -173,9 +165,6 @@ Head::Head(const Head &otherAvatar) {
     _head.interPupilDistance = otherAvatar._head.interPupilDistance;
     _head.interBrowDistance  = otherAvatar._head.interBrowDistance;
     _head.nominalPupilSize   = otherAvatar._head.nominalPupilSize;
-    //_head.yaw                = otherAvatar._head.yaw;
-    //_head.pitch              = otherAvatar._head.pitch;
-    //_head.roll               = otherAvatar._head.roll;
     _head.yawRate            = otherAvatar._head.yawRate;
     _head.pitchRate          = otherAvatar._head.pitchRate;
     _head.rollRate           = otherAvatar._head.rollRate;
@@ -209,7 +198,6 @@ Head::Head(const Head &otherAvatar) {
     _head.browAudioLift      = otherAvatar._head.browAudioLift;
     _head.noise              = otherAvatar._head.noise;
     
-	
     if (iris_texture.size() == 0) {
         switchToResourcesParentIfRequired();
         unsigned error = lodepng::decode(iris_texture, iris_texture_width, iris_texture_height, iris_texture_file);
@@ -219,25 +207,24 @@ Head::Head(const Head &otherAvatar) {
     }
 }
 
-Head::~Head()  {
+Avatar::~Avatar()  {
     if (_sphere != NULL) {
         gluDeleteQuadric(_sphere);
     }
 }
 
-Head* Head::clone() const {
+Avatar* Avatar::clone() const {
-    return new Head(*this);
+    return new Avatar(*this);
 }
 
-void Head::reset() {
+void Avatar::reset() {
     _headPitch = _headYaw = _headRoll = 0;
     _head.leanForward = _head.leanSideways = 0;
 }
 
 
 //this pertains to moving the head with the glasses 
-//---------------------------------------------------
+void Avatar::UpdateGyros(float frametime, SerialInterface * serialInterface, glm::vec3 * gravity)
-void Head::UpdateGyros(float frametime, SerialInterface * serialInterface, glm::vec3 * gravity)
 //  Using serial data, update avatar/render position and angles
 {
     const float PITCH_ACCEL_COUPLING = 0.5;
@@ -276,28 +263,41 @@ void Head::UpdateGyros(float frametime, SerialInterface * serialInterface, glm::
     addLean(-measured_lateral_accel * frametime * HEAD_LEAN_SCALE, -measured_fwd_accel*frametime * HEAD_LEAN_SCALE);
 }
 
-void Head::addLean(float x, float z) {
+void Avatar::addLean(float x, float z) {
     //  Add Body lean as impulse 
     _head.leanSideways += x;
     _head.leanForward  += z;
 }
 
 
-void Head::setLeanForward(float dist){
+void Avatar::setLeanForward(float dist){
     _head.leanForward = dist;
 }
 
-void Head::setLeanSideways(float dist){
+void Avatar::setLeanSideways(float dist){
     _head.leanSideways = dist;
 }
 
-void Head::setMousePressed( bool d ) {
+void Avatar::setMousePressed( bool d ) {
 	_mousePressed = d;
 }
 
-void Head::simulate(float deltaTime) {
+void Avatar::simulate(float deltaTime) {
+
+	// update avatar skeleton
+	updateSkeleton();
+	
+	// reset hand and arm positions according to hand movement
+	updateHandMovement( deltaTime );
+ 
+    if ( !_interactingOtherIsNearby ) {
+        //initialize _handHolding
+        _handHolding.position = _bone[ AVATAR_BONE_RIGHT_HAND ].position;
+        _handHolding.velocity = glm::vec3( 0.0, 0.0, 0.0 );
+    }
+ 
+    _interactingOtherIsNearby = false;
     
-    //-------------------------------------------------------------
     // if the avatar being simulated is mine, then loop through
     // all the other avatars to get information about them...
     //-------------------------------------------------------------
@@ -315,46 +315,60 @@ void Head::simulate(float deltaTime) {
             if ((*agent).getLinkedData() != NULL && (*agent).getType() == AGENT_TYPE_AVATAR) {
                 Head *otherAvatar = (Head *)(*agent).getLinkedData();
                 
-               // if ( _numOtherAvatars < MAX_OTHER_AVATARS ) 
-               {
-                 
-                    //------------------------------------------------------
                 // check for collisions with other avatars and respond 
-                    //------------------------------------------------------
                 updateAvatarCollisionDetectionAndResponse
                 (
-                        otherAvatar->getPosition(), 
+                    otherAvatar->getBonePosition( AVATAR_BONE_PELVIS_SPINE ), 
-                        otherAvatar->getGirth(), 
+                    0.2, 
-                        otherAvatar->getHeight(), 
+                    0.2, 
                     otherAvatar->getBodyUpDirection(),
                     deltaTime
                 );
                 
-                    //-------------------------------------------------
                 // test other avatar hand position for proximity 
-                    //------------------------------------------------
                 glm::vec3 v( _bone[ AVATAR_BONE_RIGHT_SHOULDER ].position );
                 v -= otherAvatar->getBonePosition( AVATAR_BONE_RIGHT_HAND );
                 
                 float distance = glm::length( v );
                 if ( distance < _maxArmLength ) {
-                        if ( distance < closestDistance ) {
+                
+                    //if ( distance < closestDistance ) { // perhaps I don't need this if we want to allow multi-avatar interactions
+                    {
                         closestDistance = distance;
-                            _nearOtherAvatar = true;
+                        _interactingOther = otherAvatar;
-                            _otherAvatar.handPosition = otherAvatar->getBonePosition( AVATAR_BONE_RIGHT_HAND );
+                        _interactingOtherIsNearby = true;
-                            _otherAvatar.handState = (int)otherAvatar->getHandState();
+                        
+                        // if I am holding hands with another avatar, a force is applied 
+                        if (( _handState == 1 ) ||  ( _interactingOther->_handState == 1 )) {
+                            glm::vec3 vectorToOtherHand = _interactingOther->_handPosition - _handHolding.position;
+                            glm::vec3 vectorToMyHand = _bone[ AVATAR_BONE_RIGHT_HAND ].position - _handHolding.position;
+                            
+                            _handHolding.velocity *= 0.7;
+                            _handHolding.velocity += ( vectorToOtherHand + vectorToMyHand ) * _handHolding.force * deltaTime;	
+                            _handHolding.position += _handHolding.velocity;
+                            
+                            _bone[ AVATAR_BONE_RIGHT_HAND ].position = _handHolding.position;		
                         } 
                     }
                 }
             }
         }
         
+        //  Set the vector we send for hand position to other people to be our right hand
+        setHandPosition(_bone[ AVATAR_BONE_RIGHT_HAND ].position);
+        
     }//if ( _isMine )
     
+    
+    updateArmIKAndConstraints( deltaTime );
+                    
+    if (!_interactingOtherIsNearby) {
+        _interactingOther = NULL;
+    }
+            
     if ( usingBigSphereCollisionTest ) {
-        //--------------------------------------------------------------
+
         // test for avatar collision response (using a big sphere :)
-        //--------------------------------------------------------------
         updateAvatarCollisionDetectionAndResponse
         (
             _TEST_bigSpherePosition, 
@@ -377,23 +391,12 @@ void Head::simulate(float deltaTime) {
         }
     }
     
-	//------------------------
+	// update body springs
-	// update avatar skeleton
-	//------------------------ 
-	updateSkeleton();
-	
-	//------------------------------------------------------------
-	// reset hand and arm positions according to hand movement
-	//------------------------------------------------------------
-	if (_usingBodySprings) {
-		updateHandMovement( deltaTime );
     updateBodySprings( deltaTime );
-	}
 
-    if ( _isMine ) { // driving the avatar around should only apply if this is my avatar (as opposed to an avatar being driven remotely) 
+    // driving the avatar around should only apply if this is my avatar (as opposed to an avatar being driven remotely)     
-        //-------------------------------------------------
+    if ( _isMine ) {
-        // this handles the avatar being driven around...
+
-        //-------------------------------------------------	
         _thrust = glm::vec3( 0.0, 0.0, 0.0 );
              
         if (_driveKeys[FWD]) {
@@ -428,8 +431,6 @@ void Head::simulate(float deltaTime) {
         }
 	}
         
-    
-	//----------------------------------------------------------
 	float translationalSpeed = glm::length( _velocity );
 	float rotationalSpeed = fabs( _bodyYawDelta );
 	if ( translationalSpeed + rotationalSpeed > 0.2 )
@@ -441,43 +442,27 @@ void Head::simulate(float deltaTime) {
 		_mode = AVATAR_MODE_INTERACTING;
 	}
 		
-	//----------------------------------------------------------
 	// update body yaw by body yaw delta
-	//----------------------------------------------------------
     if (_isMine) {
     _bodyYaw += _bodyYawDelta * deltaTime;
     }
         
-	
-	//----------------------------------------------------------
 	// decay body yaw delta
-	//----------------------------------------------------------
     _bodyYawDelta *= (1.0 - TEST_YAW_DECAY * deltaTime);
 
-	//----------------------------------------------------------
 	// add thrust to velocity
-	//----------------------------------------------------------
 	_velocity += glm::dvec3(_thrust * deltaTime);
 
-    //----------------------------------------------------------
     // update position by velocity
-    //----------------------------------------------------------
     _position += (glm::vec3)_velocity * deltaTime;
 
-	//----------------------------------------------------------
 	// decay velocity
-	//----------------------------------------------------------
     _velocity *= ( 1.0 - LIN_VEL_DECAY * deltaTime );
 	
     //
     //  Update Head information
     //
     
-    // we will be eventually getting head rotation from elsewhere. For now, just setting it to body rotation
-	//_head.yaw   = _bodyYaw;
-	//_head.pitch = _bodyPitch;
-	//_head.roll  = _bodyRoll;
-
     if (!_head.noise) {
         //  Decay back toward center 
         _headPitch *= (1.0f - DECAY * 2 * deltaTime);
@@ -573,23 +558,21 @@ void Head::simulate(float deltaTime) {
 }
       
       
-float Head::getGirth() {
+float Avatar::getGirth() {
     return COLLISION_BODY_RADIUS;
 }
 
-float Head::getHeight() {
+float Avatar::getHeight() {
     return COLLISION_HEIGHT;
 }
 	  
       
-glm::vec3 Head::getBodyUpDirection() {
+glm::vec3 Avatar::getBodyUpDirection() {
     return _orientation.getUp();
 }
 	  
-//--------------------------------------------------------------------------------
 // This is a workspace for testing avatar body collision detection and response
-//--------------------------------------------------------------------------------
+void Avatar::updateAvatarCollisionDetectionAndResponse
-void Head::updateAvatarCollisionDetectionAndResponse
 ( glm::vec3 collisionPosition, float collisionGirth, float collisionHeight, glm::vec3 collisionUpVector, float deltaTime ) {
 
     float myBodyApproximateBoundingRadius = 1.0f;
@@ -630,14 +613,9 @@ void Head::updateAvatarCollisionDetectionAndResponse
     }
 }
 
+void Avatar::render(bool lookingInMirror) {
 
-      
-	   
-void Head::render(bool lookingInMirror) {
-
-	//---------------------------------------------------
 	// show avatar position
-	//---------------------------------------------------
     glColor4f( 0.5f, 0.5f, 0.5f, 0.6 );
 	glPushMatrix();
 		glTranslatef(_position.x, _position.y, _position.z);
@@ -646,9 +624,8 @@ void Head::render(bool lookingInMirror) {
 	glPopMatrix();
     
     if ( usingBigSphereCollisionTest ) {
-        //---------------------------------------------------
+
         // show TEST big sphere 
-        //---------------------------------------------------
         glColor4f( 0.5f, 0.6f, 0.8f, 0.7 );
         glPushMatrix();
             glTranslatef(_TEST_bigSpherePosition.x, _TEST_bigSpherePosition.y, _TEST_bigSpherePosition.z);
@@ -657,26 +634,19 @@ void Head::render(bool lookingInMirror) {
         glPopMatrix();
      }
      	
-	//---------------------------------------------------
 	// render body
-	//---------------------------------------------------
 	renderBody();
 
-	//---------------------------------------------------
 	// render head
-	//---------------------------------------------------
 	renderHead(lookingInMirror);
 	
-	//---------------------------------------------------------------------------
+	// if this is my avatar, then render my interactions with the other avatar
-	// if this is my avatar, then render my interactions with the other avatars
-	//---------------------------------------------------------------------------
     if ( _isMine )
     {
-        if (_usingBodySprings) {
+        if ( _interactingOtherIsNearby ) {					
-            if ( _nearOtherAvatar ) {					
 
             glm::vec3 v1( _bone[ AVATAR_BONE_RIGHT_HAND ].position );
-                glm::vec3 v2( _otherAvatar.handPosition );
+            glm::vec3 v2( _interactingOther->_handPosition );
             
             glLineWidth( 8.0 );
             glColor4f( 0.7f, 0.4f, 0.1f, 0.6 );
@@ -686,20 +656,16 @@ void Head::render(bool lookingInMirror) {
             glEnd();
         }
     }
-    }
 }
 
 	   
-	   
+void Avatar::renderHead(bool lookingInMirror) {
-void Head::renderHead(bool lookingInMirror) {
     int side = 0;
         
     glEnable(GL_DEPTH_TEST);
     glEnable(GL_RESCALE_NORMAL);
     
-	//---------------------------------------------------
 	// show head orientation
-	//---------------------------------------------------
 	//renderOrientationDirections( _bone[ AVATAR_BONE_HEAD ].position, _bone[ AVATAR_BONE_HEAD ].orientation, 0.2f );
     
     glPushMatrix();
@@ -855,7 +821,7 @@ void Head::renderHead(bool lookingInMirror) {
     glPopMatrix();
  }
  
-void Head::startHandMovement() {
+void Avatar::startHandMovement() {
 
     if (!_usingBodySprings) {
         initializeBodySprings();
@@ -863,19 +829,19 @@ void Head::startHandMovement() {
     }
 }
 
-void Head::stopHandMovement() {
+void Avatar::stopHandMovement() {
 //_usingBodySprings = false;
 }
  
-void Head::setHandMovementValues( glm::vec3 handOffset ) {
+void Avatar::setHandMovementValues( glm::vec3 handOffset ) {
 	_movedHandOffset = handOffset;
 }
 
-AvatarMode Head::getMode() {
+AvatarMode Avatar::getMode() {
 	return _mode;
 }
 
-void Head::initializeSkeleton() {
+void Avatar::initializeSkeleton() {
 
 	for (int b=0; b<NUM_AVATAR_BONES; b++) {
         _bone[b].parent              = AVATAR_BONE_NULL;
@@ -920,9 +886,7 @@ void Head::initializeSkeleton() {
 	_bone[ AVATAR_BONE_RIGHT_SHIN		].parent = AVATAR_BONE_RIGHT_THIGH;
 	_bone[ AVATAR_BONE_RIGHT_FOOT		].parent = AVATAR_BONE_RIGHT_SHIN;
 
-	//----------------------------------------------------------
 	// specify the default pose position
-	//----------------------------------------------------------
 	_bone[ AVATAR_BONE_PELVIS_SPINE		].defaultPosePosition = glm::vec3(  0.0,   0.3,   0.0  );
 	_bone[ AVATAR_BONE_MID_SPINE		].defaultPosePosition = glm::vec3(  0.0,   0.1,   0.0  );
 	_bone[ AVATAR_BONE_CHEST_SPINE		].defaultPosePosition = glm::vec3(  0.0,   0.06,  0.0  );
@@ -972,18 +936,14 @@ void Head::initializeSkeleton() {
 	_bone[ AVATAR_BONE_RIGHT_SHIN		].radius = 0.015;
 	_bone[ AVATAR_BONE_RIGHT_FOOT		].radius = 0.02;
 
-	//----------------------------------------------------------------------------
 	// calculate bone length
-	//----------------------------------------------------------------------------
 	calculateBoneLengths();
 
-	//----------------------------------------------------------------------------
 	// generate world positions
-	//----------------------------------------------------------------------------
 	updateSkeleton();
 }
 
-void Head::calculateBoneLengths() {
+void Avatar::calculateBoneLengths() {
 	for (int b=0; b<NUM_AVATAR_BONES; b++) {
 		_bone[b].length = glm::length( _bone[b].defaultPosePosition );
 	}
@@ -994,16 +954,12 @@ void Head::calculateBoneLengths() {
 	+ _bone[ AVATAR_BONE_RIGHT_HAND		 ].length;
 }
 
-void Head::updateSkeleton() {
+void Avatar::updateSkeleton() {
-	//----------------------------------
 	// rotate body...
-	//----------------------------------	
 	_orientation.setToIdentity();
 	_orientation.yaw( _bodyYaw );
 
-	//------------------------------------------------------------------------
 	// calculate positions of all bones by traversing the skeleton tree:
-	//------------------------------------------------------------------------
 	for (int b=0; b<NUM_AVATAR_BONES; b++) {	
 		if ( _bone[b].parent == AVATAR_BONE_NULL ) {
             _bone[b].orientation.set( _orientation );
@@ -1014,9 +970,7 @@ void Head::updateSkeleton() {
 			_bone[b].position = _bone[ _bone[b].parent ].position;
 		}
         
-        //-------------------------------------------------------------------------------------
         // if this is not my avatar, then hand position comes from transmitted data
-        //-------------------------------------------------------------------------------------
         if ( ! _isMine ) {
             _bone[ AVATAR_BONE_RIGHT_HAND ].position = _handPosition;
         }
@@ -1035,7 +989,7 @@ void Head::updateSkeleton() {
 	}	
 }
 
-void Head::initializeBodySprings() {
+void Avatar::initializeBodySprings() {
 	for (int b=0; b<NUM_AVATAR_BONES; b++) {
 		_bone[b].springyPosition = _bone[b].position;
 		_bone[b].springyVelocity = glm::vec3( 0.0f, 0.0f, 0.0f );
@@ -1043,7 +997,7 @@ void Head::initializeBodySprings() {
 }
 
 
-void Head::updateBodySprings( float deltaTime ) {
+void Avatar::updateBodySprings( float deltaTime ) {
 	for (int b=0; b<NUM_AVATAR_BONES; b++) {
 		glm::vec3 springVector( _bone[b].springyPosition );
 
@@ -1083,7 +1037,7 @@ void Head::updateBodySprings( float deltaTime ) {
 	}
 }
 
-glm::vec3 Head::getHeadLookatDirection() {
+glm::vec3 Avatar::getHeadLookatDirection() {
 	return glm::vec3
 	(
         _orientation.getFront().x,
@@ -1092,7 +1046,7 @@ glm::vec3 Head::getHeadLookatDirection() {
 	);
 }
 
-glm::vec3 Head::getHeadLookatDirectionUp() {
+glm::vec3 Avatar::getHeadLookatDirectionUp() {
 	return glm::vec3
 	(
         _orientation.getUp().x,
@@ -1101,7 +1055,7 @@ glm::vec3 Head::getHeadLookatDirectionUp() {
 	);
 }
 
-glm::vec3 Head::getHeadLookatDirectionRight() {
+glm::vec3 Avatar::getHeadLookatDirectionRight() {
 	return glm::vec3
 	(
         _orientation.getRight().x,
@@ -1110,7 +1064,7 @@ glm::vec3 Head::getHeadLookatDirectionRight() {
 	);
 }
 
-glm::vec3 Head::getHeadPosition() {
+glm::vec3 Avatar::getHeadPosition() {
 
     if ( _usingBodySprings ) {
         return _bone[ AVATAR_BONE_HEAD ].springyPosition;
@@ -1120,13 +1074,13 @@ glm::vec3 Head::getHeadPosition() {
 }
 
 
-glm::vec3 Head::getBonePosition( AvatarBoneID b ) {
+glm::vec3 Avatar::getBonePosition( AvatarBoneID b ) {
     return _bone[b].position;
 }
 
 
 
-void Head::updateHandMovement( float deltaTime ) {
+void Avatar::updateHandMovement( float deltaTime ) {
 	glm::vec3 transformedHandMovement;
 	    
 	transformedHandMovement 
@@ -1139,47 +1093,21 @@ void Head::updateHandMovement( float deltaTime ) {
     if (_isMine) {
         _handState = _mousePressed;
     }
+}
 
-    //---------------------------------------------------------------------
-	// if holding hands with another avatar, add a force to the hand...
-    //---------------------------------------------------------------------
-    if (( getHandState() == 1 )
-    ||  ( _otherAvatar.handState == 1 )) {
-        if ( _nearOtherAvatar ) {	            
 
-            glm::vec3 vectorToOtherHand = _otherAvatar.handPosition - _handHolding.position;
+void Avatar::updateArmIKAndConstraints( float deltaTime ) {
-            glm::vec3 vectorToMyHand = _bone[ AVATAR_BONE_RIGHT_HAND ].position - _handHolding.position;
 
-            _handHolding.velocity *= 0.7;
-            _handHolding.velocity += ( vectorToOtherHand + vectorToMyHand ) * _handHolding.force * deltaTime;	
-            _handHolding.position += _handHolding.velocity;
-            
-            _bone[ AVATAR_BONE_RIGHT_HAND ].position = _handHolding.position;		
-        } 
-    }
-    else {
-        _handHolding.position = _bone[ AVATAR_BONE_RIGHT_HAND ].position;
-        _handHolding.velocity = glm::vec3( 0.0, 0.0, 0.0 );
-    }
-        
-	//-------------------------------------------------------------------------------
 	// determine the arm vector
-	//-------------------------------------------------------------------------------
 	glm::vec3 armVector = _bone[ AVATAR_BONE_RIGHT_HAND ].position;
 	armVector -= _bone[ AVATAR_BONE_RIGHT_SHOULDER ].position;
 
-	//-------------------------------------------------------------------------------
 	// test to see if right hand is being dragged beyond maximum arm length
-	//-------------------------------------------------------------------------------
 	float distance = glm::length( armVector );
 	
-	//-------------------------------------------------------------------------------
 	// if right hand is being dragged beyond maximum arm length...
-	//-------------------------------------------------------------------------------	
 	if ( distance > _maxArmLength ) {
-		//-------------------------------------------------------------------------------
 		// reset right hand to be constrained to maximum arm length
-		//-------------------------------------------------------------------------------
 		_bone[ AVATAR_BONE_RIGHT_HAND ].position = _bone[ AVATAR_BONE_RIGHT_SHOULDER ].position;
 		glm::vec3 armNormal = armVector / distance;
 		armVector = armNormal * _maxArmLength;
@@ -1189,35 +1117,27 @@ void Head::updateHandMovement( float deltaTime ) {
 		_bone[ AVATAR_BONE_RIGHT_HAND ].position = constrainedPosition;
 	}
 		
-	//-----------------------------------------------------------------------------
 	// set elbow position 
-	//-----------------------------------------------------------------------------
 	glm::vec3 newElbowPosition = _bone[ AVATAR_BONE_RIGHT_SHOULDER ].position;
 	newElbowPosition += armVector * ONE_HALF;
 	glm::vec3 perpendicular = glm::cross( _orientation.getFront(), armVector );
 	newElbowPosition += perpendicular * ( 1.0f - ( _maxArmLength / distance ) ) * ONE_HALF;
 	_bone[ AVATAR_BONE_RIGHT_UPPER_ARM ].position = newElbowPosition;
 
-	//-----------------------------------------------------------------------------
 	// set wrist position 
-	//-----------------------------------------------------------------------------
 	glm::vec3 vv( _bone[ AVATAR_BONE_RIGHT_HAND ].position );
 	vv -= _bone[ AVATAR_BONE_RIGHT_UPPER_ARM ].position;
 	glm::vec3 newWristPosition = _bone[ AVATAR_BONE_RIGHT_UPPER_ARM ].position;
 	newWristPosition += vv * 0.7f;
 	_bone[ AVATAR_BONE_RIGHT_FOREARM ].position = newWristPosition;
-    
-    //  Set the vector we send for hand position to other people to be our right hand
-    setHandPosition(_bone[ AVATAR_BONE_RIGHT_HAND ].position);
-
 }
 
 
 
-void Head::renderBody() {
+
-	//-----------------------------------------
+void Avatar::renderBody() {
+
     //  Render bone positions as spheres
-	//-----------------------------------------
 	for (int b=0; b<NUM_AVATAR_BONES; b++) {
         //renderBoneAsBlock( (AvatarBoneID)b);
         
@@ -1240,9 +1160,7 @@ void Head::renderBody() {
 		}
 	}
 
-	//-----------------------------------------------------
     // Render lines connecting the bone positions
-	//-----------------------------------------------------
 	if ( _usingBodySprings ) {
 		glColor3f( 0.4f, 0.5f, 0.6f );
 		glLineWidth(3.0);
@@ -1270,9 +1188,7 @@ void Head::renderBody() {
 		}
 	}
 	
-    //---------------------------------------------------------
     // if the hand is grasping, show it...
-    //---------------------------------------------------------
 	if (( _usingBodySprings ) && ( _handState == 1 )) {
 		glPushMatrix();
 			glTranslatef
@@ -1289,9 +1205,7 @@ void Head::renderBody() {
 	}
 }
 
-
+void Avatar::renderBoneAsBlock( AvatarBoneID b ) {
-
-void Head::renderBoneAsBlock( AvatarBoneID b ) {
     glColor3fv( skinColor );
     glPushMatrix();
         glTranslatef( _bone[b].springyPosition.x, _bone[b].springyPosition.y, _bone[b].springyPosition.z );
@@ -1303,13 +1217,13 @@ void Head::renderBoneAsBlock( AvatarBoneID b ) {
     glPopMatrix();
 }
 
-void Head::SetNewHeadTarget(float pitch, float yaw) {
+void Avatar::SetNewHeadTarget(float pitch, float yaw) {
     _head.pitchTarget = pitch;
     _head.yawTarget   = yaw;
 }
 
 // getting data from Android transmitte app
-void Head::processTransmitterData(unsigned char* packetData, int numBytes) {
+void Avatar::processTransmitterData(unsigned char* packetData, int numBytes) {
     //  Read a packet from a transmitter app, process the data
     float accX, accY, accZ,
     graX, graY, graZ,

interface/src/Avatar.h

@@ -1,13 +1,13 @@
 //
-//  Head.h
+//  Avatar.h
 //  interface
 //
 //  Created by Philip Rosedale on 9/11/12.
 //  Copyright (c) 2012 High Fidelity, Inc. All rights reserved.
 //
 
-#ifndef __interface__head__
+#ifndef __interface__avatar__
-#define __interface__head__
+#define __interface__avatar__
 
 #include <AvatarData.h>
 #include <Orientation.h>
@@ -100,13 +100,6 @@ struct AvatarHandHolding
     float     force;
 };
 
-struct OtherAvatar
-{
-    glm::vec3 handPosition;
-    int       handState;
-};
-
-
 struct AvatarBone
 {
 	AvatarBoneID parent;				// which bone is this bone connected to?
@@ -163,12 +156,12 @@ struct AvatarHead
 };
 
 
-class Head : public AvatarData {
+class Avatar : public AvatarData {
     public:
-        Head(bool isMine);
+        Avatar(bool isMine);
-        ~Head();
+        ~Avatar();
-        Head(const Head &otherHead);
+        Avatar(const Avatar &otherAvatar);
-        Head* clone() const;
+        Avatar* clone() const;
     
         void  reset();
         void  UpdateGyros(float frametime, SerialInterface * serialInterface, glm::vec3 * gravity);
@@ -191,7 +184,6 @@ class Head : public AvatarData {
 		glm::vec3 getHeadPosition();
 		glm::vec3 getBonePosition( AvatarBoneID b );	
         glm::vec3 getBodyUpDirection();
-        //int       getHandState();
         float getGirth();
         float getHeight();
         
@@ -206,6 +198,7 @@ class Head : public AvatarData {
 		void stopHandMovement();
 		void setHandMovementValues( glm::vec3 movement );
 		void updateHandMovement( float deltaTime );
+		void updateArmIKAndConstraints( float deltaTime );
         
         float getAverageLoudness() {return _head.averageLoudness;};
         void setAverageLoudness(float al) {_head.averageLoudness = al;};
@@ -230,10 +223,8 @@ class Head : public AvatarData {
         bool              _isMine;
         glm::vec3         _TEST_bigSpherePosition;
         float             _TEST_bigSphereRadius;
-        OtherAvatar       _otherAvatar;
 		bool              _mousePressed;
 		float             _bodyYawDelta;
-		bool              _nearOtherAvatar;
 		bool              _usingBodySprings;
 		glm::vec3         _movedHandOffset;
 		float             _springVelocityDecay;
@@ -253,10 +244,10 @@ class Head : public AvatarData {
         timeval           _transmitterTimer;
         float             _transmitterHz;
         int               _transmitterPackets;
+        Avatar*           _interactingOther;
+        bool              _interactingOtherIsNearby;
         
-        //-----------------------------
         // private methods...
-        //-----------------------------
 		void initializeSkeleton();
 		void updateSkeleton();
 		void initializeBodySprings();

interface/src/Log.h

@@ -55,7 +55,7 @@ class Log {
 public:
 
     explicit Log(FILE* tPipeTo = stdout, unsigned bufferedLines = 1024,
-                 unsigned defaultLogWidth = 240, unsigned defaultCharWidth = 6, unsigned defaultCharHeight = 20);
+                 unsigned defaultLogWidth = 400, unsigned defaultCharWidth = 6, unsigned defaultCharHeight = 20);
     ~Log();
 
     void setLogWidth(unsigned pixels);

interface/src/Stars.cpp

@@ -34,7 +34,17 @@ float Stars::changeLOD(float fraction, float overalloc, float realloc) {
     return float(_ptrController->changeLOD(fraction, overalloc, realloc));
 } 
 
-void Stars::render(float fovDiagonal, float aspect, glm::mat4 const& view) {
+void Stars::render(float fovY, float aspect, float nearZ) {
+
+    // determine length of screen diagonal from quadrant height and aspect ratio
+    float quadrantHeight = nearZ * tan(angleConvert<Degrees,Radians>(fovY) * 0.5f);
+    float halfDiagonal = sqrt(quadrantHeight * quadrantHeight * (1.0f + aspect * aspect));
+
+    // determine fov angle in respect to the diagonal
+    float fovDiagonal = atan(halfDiagonal / nearZ) * 2.0f;
+
+    // pull the modelview matrix off the GL stack
+    glm::mat4 view; glGetFloatv(GL_MODELVIEW_MATRIX, glm::value_ptr(view)); 
 
     _ptrController->render(fovDiagonal, aspect, glm::affineInverse(view)); 
 }

interface/src/Stars.h

@@ -13,9 +13,9 @@
 
 namespace starfield { class Controller; }
 
-/**
+// 
- * Starfield rendering component.
+// Starfield rendering component.
- */
+// 
 class Stars  {
 
         starfield::Controller* _ptrController;
@@ -25,47 +25,47 @@ class Stars  {
         Stars();
         ~Stars();
 
-        /**
+        // 
-         * Reads input file from URL. Returns true upon success.
+        // Reads input file from URL. Returns true upon success.
-         *
+        //
-         * The limit parameter allows to reduce the number of stars
+        // The limit parameter allows to reduce the number of stars
-         * that are loaded, keeping the brightest ones.
+        // that are loaded, keeping the brightest ones.
-         */
+        // 
         bool readInput(const char* url, const char* cacheFile = 0l, unsigned limit = 200000);
 
-        /**
+        // 
-         * Renders the starfield from a local viewer's perspective.
+        // Renders the starfield from a local viewer's perspective.
-         * The parameter specifies the field of view.
+        // The parameters specifiy the field of view.
-         */
+        // 
-        void render(float fovDiagonal, float aspect, glm::mat4 const& view);
+        void render(float fovY, float aspect, float nearZ);
 
-        /**
+        // 
-         * Sets the resolution for FOV culling.
+        // Sets the resolution for FOV culling.
-         *
+        //
-         * The parameter determines the number of tiles in azimuthal 
+        // The parameter determines the number of tiles in azimuthal 
-         * and altitudinal directions. 
+        // and altitudinal directions. 
-         *
+        //
-         * GPU resources are updated upon change in which case 'true'
+        // GPU resources are updated upon change in which case 'true'
-         * is returned.
+        // is returned.
-         */
+        // 
         bool setResolution(unsigned k);
 
-        /**
+        // 
-         * Allows to alter the number of stars to be rendered given a
+        // Allows to alter the number of stars to be rendered given a
-         * factor. The least brightest ones are omitted first.
+        // factor. The least brightest ones are omitted first.
-         *
+        //
-         * The further parameters determine when GPU resources should
+        // The further parameters determine when GPU resources should
-         * be reallocated. Its value is fractional in respect to the
+        // be reallocated. Its value is fractional in respect to the
-         * last number of stars 'n' that caused 'n * (1+overalloc)' to
+        // last number of stars 'n' that caused 'n * (1+overalloc)' to
-         * be allocated. When the next call to setLOD causes the total
+        // be allocated. When the next call to setLOD causes the total
-         * number of stars that could be rendered to drop below 'n * 
+        // number of stars that could be rendered to drop below 'n * 
-         * (1-realloc)' or rises above 'n * (1+realloc)' GPU resources
+        // (1-realloc)' or rises above 'n * (1+realloc)' GPU resources
-         * are updated. Note that all parameters must be fractions,
+        // are updated. Note that all parameters must be fractions,
-         * that is within the range [0;1] and that 'overalloc' must be
+        // that is within the range [0;1] and that 'overalloc' must be
-         * greater than or equal to 'realloc'.
+        // greater than or equal to 'realloc'.
-         *
+        //
-         * The current level of detail is returned as a float in [0;1].
+        // The current level of detail is returned as a float in [0;1].
-         */
+        // 
         float changeLOD(float factor,
                         float overalloc = 0.25, float realloc = 0.15);
 

interface/src/VoxelSystem.cpp

@@ -60,8 +60,8 @@ VoxelSystem::~VoxelSystem() {
     pthread_mutex_destroy(&bufferWriteLock);
 }
 
-void VoxelSystem::setViewerHead(Head *newViewerHead) {
+void VoxelSystem::setViewerAvatar(Avatar *newViewerAvatar) {
-    viewerHead = newViewerHead;
+    viewerAvatar = newViewerAvatar;
 }
 
 //////////////////////////////////////////////////////////////////////////////////////////
@@ -187,7 +187,7 @@ int VoxelSystem::treeToArrays(VoxelNode *currentNode, const glm::vec3&  nodePosi
     int voxelsAdded = 0;
 
     float halfUnitForVoxel = powf(0.5, *currentNode->octalCode) * (0.5 * TREE_SCALE);
-    glm::vec3 viewerPosition = viewerHead->getPosition();
+    glm::vec3 viewerPosition = viewerAvatar->getPosition();
 
     // debug LOD code
     glm::vec3 debugNodePosition;

interface/src/VoxelSystem.h

@@ -15,7 +15,7 @@
 #include <AgentData.h>
 #include <VoxelTree.h>
 #include <ViewFrustum.h>
-#include "Head.h"
+#include "Avatar.h"
 #include "Util.h"
 #include "world.h"
 
@@ -34,7 +34,7 @@ public:
     void render();
     void setVoxelsRendered(int v) {voxelsRendered = v;};
     int getVoxelsRendered() {return voxelsRendered;};
-    void setViewerHead(Head *newViewerHead);
+    void setViewerAvatar(Avatar *newViewerAvatar);
     void loadVoxelsFile(const char* fileName,bool wantColorRandomizer);
 	void createSphere(float r,float xc, float yc, float zc, float s, bool solid, bool wantColorRandomizer);
 
@@ -67,7 +67,7 @@ private:
     static float _minDistance;
 
     int voxelsRendered;
-    Head *viewerHead;
+    Avatar *viewerAvatar;
     VoxelTree *tree;
     GLfloat *readVerticesArray;
     GLubyte *readColorsArray;

interface/src/main.cpp

@@ -64,7 +64,7 @@
 #include "MenuColumn.h"
 #include "Menu.h"
 #include "Camera.h"
-#include "Head.h"
+#include "Avatar.h"
 #include "Particle.h"
 #include "Texture.h"
 #include "Cloud.h"
@@ -107,7 +107,7 @@ Oscilloscope audioScope(256,200,true);
 
 ViewFrustum viewFrustum;			// current state of view frustum, perspective, orientation, etc.
 
-Head myAvatar(true);                // The rendered avatar of oneself
+Avatar myAvatar(true);              // The rendered avatar of oneself
 Camera myCamera;                    // My view onto the world (sometimes on myself :)
 Camera viewFrustumOffsetCamera;     // The camera we use to sometimes show the view frustum from an offset mode
 
@@ -157,6 +157,8 @@ VoxelDetail paintingVoxel;          //	The voxel we're painting if we're paintin
 unsigned char dominantColor = 0;    //	The dominant color of the voxel we're painting
 bool perfStatsOn = false;			//  Do we want to display perfStats?
 
+bool logOn = true;                  //  Whether to show on-screen log
+
 int noiseOn = 0;					//  Whether to add random noise 
 float noise = 1.0;                  //  Overall magnitude scaling for random noise levels 
 
@@ -382,7 +384,7 @@ void initDisplay(void)
 void init(void)
 {
     voxels.init();
-    voxels.setViewerHead(&myAvatar);
+    voxels.setViewerAvatar(&myAvatar);
     myAvatar.setRenderYaw(startYaw);
     
     initializeHandController();
@@ -862,9 +864,10 @@ void display(void)
         if (::starsOn) {
             // should be the first rendering pass - w/o depth buffer / lighting
 
-            glm::mat4 view;
+
-            glGetFloatv(GL_MODELVIEW_MATRIX, glm::value_ptr(view)); 
+            // finally render the starfield
-        	stars.render(angleConvert<Degrees,Radians>(whichCamera.getFieldOfView()),  aspectRatio, view);
+        	stars.render(whichCamera.getFieldOfView(), aspectRatio, whichCamera.getNearClip());
+            
         }
 
         glEnable(GL_LIGHTING);
@@ -919,7 +922,7 @@ void display(void)
         if ( !::lookingInMirror ) balls.render();
     
         //  Render the world box
-        if (!::lookingInMirror && statsOn) render_world_box();
+        if (!::lookingInMirror && ::statsOn) { render_world_box(); }
         
         // brad's frustum for debugging
         if (::frustumOn) renderViewFrustum(::viewFrustum);
@@ -961,13 +964,12 @@ void display(void)
     //  Show detected levels from the serial I/O ADC channel sensors
     if (displayLevels) serialPort.renderLevels(WIDTH,HEIGHT);
     
-    //  Display miscellaneous text stats onscreen
+    //  Display stats and log text onscreen
-    if (statsOn) {
     glLineWidth(1.0f);
     glPointSize(1.0f);
-        displayStats();
+    
-        logger.render(WIDTH, HEIGHT);
+    if (::statsOn) { displayStats(); }
-    }
+    if (::logOn) { logger.render(WIDTH, HEIGHT); }
         
     //  Show menu
     if (::menuOn) {
@@ -1057,6 +1059,11 @@ int setNoise(int state) {
     return iRet;
 }
 
+int setLog(int state) {
+    int iRet = setValue(state, &::logOn);
+    return iRet;
+}
+
 int setGyroLook(int state) {
     int iRet = setValue(state, &::gyroLook);
     return iRet;
@@ -1071,7 +1078,7 @@ int setStars(int state) {
 }
 
 int setStats(int state) {
-    return setValue(state, &statsOn);
+    return setValue(state, &::statsOn);
 }
 
 int setMenu(int state) {
@@ -1197,6 +1204,7 @@ void initMenu() {
     //  Tools
     menuColumnTools = menu.addColumn("Tools");
     menuColumnTools->addRow("Stats (/)", setStats);
+    menuColumnTools->addRow("Log ", setLog);
     menuColumnTools->addRow("(M)enu", setMenu);
 
     // Frustum Options
@@ -1354,7 +1362,7 @@ void key(unsigned char k, int x, int y)
     
 	//  Process keypresses 
  	if (k == 'q' || k == 'Q')  ::terminate();
-    if (k == '/')  statsOn = !statsOn;		// toggle stats
+    if (k == '/')  ::statsOn = !::statsOn;		// toggle stats
     if (k == '*')  ::starsOn = !::starsOn;		// toggle stars
     if (k == 'V' || k == 'v')  ::showingVoxels = !::showingVoxels;		// toggle voxels
     if (k == 'F')  ::frustumOn = !::frustumOn;		// toggle view frustum debugging
@@ -1603,7 +1611,7 @@ void mouseoverFunc( int x, int y)
 
 void attachNewHeadToAgent(Agent *newAgent) {
     if (newAgent->getLinkedData() == NULL) {
-        newAgent->setLinkedData(new Head(false));
+        newAgent->setLinkedData(new Avatar(false));
     }
 }
 

interface/src/starfield/renderer/Renderer.h

@@ -130,17 +130,18 @@ namespace starfield {
 
             float halfPersp = perspective * 0.5f;
 
-            // determine dimensions based on a sought screen diagonal
+            // define diagonal and near distance
-            //
+            float halfDiag = std::sin(halfPersp);
-            //  ww + hh = dd
-            //  a = h / w => h = wa
-            //  ww + ww aa = dd
-            //  ww = dd / (1 + aa)
-            float diag = 2.0f * std::sin(halfPersp);
             float nearClip = std::cos(halfPersp);
             
-            float hw = 0.5f * sqrt(diag * diag / (1.0f + aspect * aspect));
+            // determine half dimensions based on the screen diagonal
-            float hh = hw * aspect;
+            //
+            //  ww + hh = dd
+            //  a = w / h => w = ha
+            //  hh + hh aa = dd
+            //  hh = dd / (1 + aa)
+            float hh = sqrt(halfDiag * halfDiag / (1.0f + aspect * aspect));
+            float hw = hh * aspect;
 
             // cancel all translation
             mat4 matrix = orientation;
@@ -154,6 +155,9 @@ namespace starfield {
             float azimuth = atan2(ahead.x,-ahead.z) + Radians::pi();
             float altitude = atan2(-ahead.y, hypotf(ahead.x, ahead.z));
             angleHorizontalPolar<Radians>(azimuth, altitude);
+            float const eps = 0.002f;
+            altitude = glm::clamp(altitude,
+                                  -Radians::halfPi() + eps, Radians::halfPi() - eps);
 #if STARFIELD_HEMISPHERE_ONLY
             altitude = std::max(0.0f, altitude);
 #endif
@@ -162,24 +166,25 @@ namespace starfield {
 
 // printLog("Stars.cpp: starting on tile #%d\n", tileIndex);
 
-
 #if STARFIELD_DEBUG_CULLING
-            mat4 matrix_debug = glm::translate( 
+            mat4 matrix_debug = glm::translate(glm::frustum(-hw, hw, -hh, hh, nearClip, 10.0f), 
-                    glm::frustum(-hw, hw, -hh, hh, nearClip, 10.0f), 
+                                               vec3(0.0f, 0.0f, -4.0f)) *
-                    vec3(0.0f, 0.0f, -4.0f)) * glm::affineInverse(matrix);
+                    glm::affineInverse(matrix);
 #endif
 
-            matrix = glm::frustum(-hw,hw, -hh,hh, nearClip,10.0f)
+            matrix = glm::frustum(-hw,hw, -hh,hh, nearClip,10.0f) * glm::affineInverse(matrix); 
-                    * glm::affineInverse(matrix);
 
             this->_itrOutIndex = (unsigned*) _arrBatchOffs;
             this->_vecWxform = vec3(row(matrix, 3));
             this->_valHalfPersp = halfPersp;
             this->_valMinBright = minBright;
 
-            floodFill(_arrTile + tileIndex, TileSelection(*this, 
+            TileSelection::Cursor cursor;
-                    _arrTile, _arrTile + _objTiling.getTileCount(),
+            cursor.current = _arrTile + _objTiling.getTileIndex(azimuth, altitude);
-                    (Tile**) _arrBatchCount));
+            cursor.firstInRow = _arrTile + _objTiling.getTileIndex(0.0f, altitude);
+
+            floodFill(cursor, TileSelection(*this, _arrTile, _arrTile + _objTiling.getTileCount(),
+                                            (TileSelection::Cursor*) _arrBatchCount));
 
 #if STARFIELD_DEBUG_CULLING
 #   define matrix matrix_debug
@@ -269,31 +274,35 @@ namespace starfield {
 
         class TileSelection {
 
+        public:
+            struct Cursor { Tile* current, * firstInRow; };
+        private:
             Renderer&           _refRenderer;
-            Tile** const        _arrStack;
+            Cursor*     const   _arrStack;
-            Tile**              _itrStack;
+            Cursor*             _itrStack;
             Tile const* const   _arrTile;
-            Tile const* const   _itrTilesEnd;
+            Tile const* const   _ptrTilesEnd;
 
         public:
 
             TileSelection(Renderer& renderer, Tile const* tiles, 
-                          Tile const* tiles_end, Tile** stack) :
+                          Tile const* tiles_end, Cursor* stack) :
 
                 _refRenderer(renderer),
                 _arrStack(stack),
                 _itrStack(stack), 
                 _arrTile(tiles), 
-                _itrTilesEnd(tiles_end) {
+                _ptrTilesEnd(tiles_end) {
             }
      
         protected:
 
             // flood fill strategy
 
-            bool select(Tile* t) {
+            bool select(Cursor const& c) {
+                Tile* t = c.current;
 
-                if (t < _arrTile || t >= _itrTilesEnd ||
+                if (t < _arrTile || t >= _ptrTilesEnd ||
                         !! (t->flags & Tile::checked)) {
 
                     // out of bounds or been here already
@@ -311,7 +320,8 @@ namespace starfield {
                 return false;
             }
 
-            bool process(Tile* t) { 
+            bool process(Cursor const& c) { 
+                Tile* t = c.current;
 
                 if (! (t->flags & Tile::visited)) {
 
@@ -321,14 +331,39 @@ namespace starfield {
                 return false;
             }
 
-            void right(Tile*& cursor) const   { cursor += 1; }
+            void right(Cursor& c) const {
-            void left(Tile*& cursor)  const   { cursor -= 1; }
-            void up(Tile*& cursor)    const   { cursor += yStride(); }
-            void down(Tile*& cursor)  const   { cursor -= yStride(); }
 
-            void defer(Tile* t) { *_itrStack++ = t; }
+                c.current += 1;
+                if (c.current == c.firstInRow + _refRenderer._objTiling.getAzimuthalTiles()) {
+                    c.current = c.firstInRow;
+                }
+            }
+            void left(Cursor& c)  const {
  
-            bool deferred(Tile*& cursor) {
+                if (c.current == c.firstInRow) {
+                    c.current = c.firstInRow + _refRenderer._objTiling.getAzimuthalTiles();
+                }
+                c.current -= 1;
+            }
+            void up(Cursor& c) const { 
+
+                unsigned d = _refRenderer._objTiling.getAzimuthalTiles();
+                c.current += d;
+                c.firstInRow += d;
+            }
+            void down(Cursor& c)  const {
+
+                unsigned d = _refRenderer._objTiling.getAzimuthalTiles();
+                c.current -= d;
+                c.firstInRow -= d;
+            }
+
+            void defer(Cursor const& t) {
+
+                *_itrStack++ = t;
+            }
+
+            bool deferred(Cursor& cursor) {
 
                 if (_itrStack != _arrStack) {
                     cursor = *--_itrStack;
@@ -336,12 +371,6 @@ namespace starfield {
                 }
                 return false;
             }
-
-        private:
-            unsigned yStride() const {
-
-                return _refRenderer._objTiling.getAzimuthalTiles();
-            }
         };
 
         bool visitTile(Tile* t) {
@@ -362,6 +391,7 @@ namespace starfield {
         bool tileVisible(Tile* t, unsigned i) {
 
             float slice = _objTiling.getSliceAngle();
+            float halfSlice = 0.5f * slice;
             unsigned stride = _objTiling.getAzimuthalTiles();
             float azimuth = (i % stride) * slice;
             float altitude = (i / stride) * slice - Radians::halfPi();
@@ -371,14 +401,13 @@ namespace starfield {
             vec3 tileCenter = vec3(gx * exz, sin(altitude), gz * exz);
             float w = dot(_vecWxform, tileCenter);
 
-            float halfSlice = 0.5f * slice;
+            float daz = halfSlice * cos(std::max(0.0f, abs(altitude) - halfSlice));
-            float daz = halfSlice * cos(abs(altitude) - halfSlice);
             float dal = halfSlice;
             float adjustedNear = cos(_valHalfPersp + sqrt(daz * daz + dal * dal));
 
 // printLog("Stars.cpp: checking tile #%d, w = %f, near = %f\n", i,  w, nearClip);
 
-            return w > adjustedNear;
+            return w >= adjustedNear;
         }
 
         void updateVertexCount(Tile* t, BrightnessLevel minBright) {

interface/src/starfield/renderer/Tiling.h

@@ -1,5 +1,5 @@
 //
-// starfield/renderer/ 
+// starfield/renderer/Tiling.h 
 // interface
 //
 // Created by Tobias Schwinger on 3/22/13.
@@ -51,6 +51,7 @@ namespace starfield {
     private:
 
         unsigned discreteAngle(float unsigned_angle) const {
+
             return unsigned(floor(unsigned_angle * _valRcpSlice + 0.5f));
         }
 

libraries/shared/src/FloodFill.h

@@ -9,32 +9,31 @@
 #ifndef __hifi__FloodFill__
 #define __hifi__FloodFill__
 
-/**
+// 
- * Line scanning, iterative flood fill algorithm.
+// Line scanning, iterative flood fill algorithm.
- *
+//
- * The strategy must obey the following contract:
+// The strategy must obey the following contract:
- *
+//
- *   There is an associated cursor that represents a position on the image. 
+//   There is an associated cursor that represents a position on the image. 
- *   The member functions 'left(C&)', 'right(C&)', 'up(C&)', and 'down(C&)' 
+//   The member functions 'left(C&)', 'right(C&)', 'up(C&)', and 'down(C&)' 
- *   move it.
+//   move it.
- *   The state of a cursor can be deferred to temporary storage (typically a
+//   The state of a cursor can be deferred to temporary storage (typically a
- *   stack or a queue) using the 'defer(C const&)' member function. 
+//   stack or a queue) using the 'defer(C const&)' member function. 
- *   Calling 'deferred(C&)' restores a cursor's state from temporary storage
+//   Calling 'deferred(C&)' restores a cursor's state from temporary storage
- *   and removes it there.
+//   and removes it there.
- *   The 'select(C const&)' and 'process(C const&)' functions control the 
+//   The 'select(C const&)' and 'process(C const&)' functions control the 
- *   algorithm. The former is called to determine where to go. It may be
+//   algorithm. The former is called to determine where to go. It may be
- *   called multiple times but does not have to (and should not) return 
+//   called multiple times but does not have to (and should not) return 
- *   'true' more than once for a pixel to be selected (will cause memory
+//   'true' more than once for a pixel to be selected (will cause memory
- *   overuse, otherwise). The latter will never be called for a given pixel
+//   overuse, otherwise). The latter will never be called for a given pixel
- *   unless previously selected. It may be called multiple times, in which
+//   unless previously selected. It may be called multiple times, in which
- *   case it should return 'true' upon successful processing and 'false'
+//   case it should return 'true' upon successful processing and 'false'
- *   when an already processed pixel has been visited. 
+//   when an already processed pixel has been visited. 
- *
+// 
- * Note: The terms "image" and "pixel" are used for illustratory purposes
+// Note: The terms "image" and "pixel" are used for illustratory purposes
- * and mean "undirected graph with 4-connected 2D grid topology" and "node",
+// and mean "undirected graph with 4-connected 2D grid topology" and "node",
- * respectively.
+// respectively.
- *
+//
- */
 template< class Strategy, typename Cursor >
 void floodFill(Cursor const& position,
         Strategy const& strategy = Strategy());
@@ -63,57 +62,39 @@ struct floodFill_impl : Strategy {
         }
 
         Cursor higher, lower, h,l, i;
-        bool higherFound, lowerFound, hf, lf;
         do {
 
             if (! process(position)) {
                 continue;
             }
 
-            higher = position; higherFound = false;
+            higher = position;
-            up(higher); yTest(higher, higherFound);
+            up(higher); 
-            lower = position; lowerFound = false;
+            if (select(higher)) { defer(higher); }
-            down(lower); yTest(lower, lowerFound);
+
+            lower = position;
+            down(lower);
+            if (select(lower)) { defer(lower); }
 
             i = position, h = higher, l = lower;
-            hf = higherFound, lf = lowerFound;
             do {
-                right(i), right(h), right(l); yTest(h,hf); yTest(l,lf); 
 
-            } while (selectAndProcess(i));
+                right(i), right(h), right(l); 
+                if (select(h)) { defer(h); }
+                if (select(l)) { defer(l); }
+
+            } while (select(i) && process(i));
 
             i = position, h = higher, l = lower;
-            hf = higherFound, lf = lowerFound;
             do {
-                left(i); left(h); left(l); yTest(h,hf); yTest(l,lf);
+                left(i); left(h); left(l); 
+                if (select(h)) { defer(h); }
+                if (select(l)) { defer(l); }
 
-            } while (selectAndProcess(i));
+            } while (select(i) && process(i));
 
         } while (deferred(position));
     }
-
-    bool selectAndProcess(Cursor const& i) {
-
-        if (select(i)) {
-
-            process(i);
-            return true;
-        }
-        return false;
-    }
-
-    void yTest(Cursor const& i, bool& state) {
-
-        if (! select(i)) {
-
-            state = false;
-
-        } else if (! state) {
-
-            state = true;
-            defer(i);
-        }
-    }
 };
 
 template< class Strategy, typename Cursor >