More work on full frame sending.

interface/resources/shaders/face.vert

@@ -17,9 +17,6 @@ uniform vec2 texCoordRight;
 // the texture coordinate vector from bottom to the top
 uniform vec2 texCoordUp;
 
-// the aspect ratio of the image
-uniform float aspectRatio;
-
 // the depth texture
 uniform sampler2D depthTexture;
 
@@ -31,6 +28,5 @@ void main(void) {
     const float MIN_VISIBLE_DEPTH = 1.0 / 255.0;
     const float MAX_VISIBLE_DEPTH = 254.0 / 255.0;
     gl_FrontColor = vec4(1.0, 1.0, 1.0, step(MIN_VISIBLE_DEPTH, depth) * (1.0 - step(MAX_VISIBLE_DEPTH, depth)));
-    gl_Position = gl_ModelViewProjectionMatrix * vec4(0.5 - gl_Vertex.x,
-        (gl_Vertex.y - 0.5) / aspectRatio, depth * 2.0 - 2.0, 1.0);
+    gl_Position = gl_ModelViewProjectionMatrix * vec4(0.5 - gl_Vertex.x, gl_Vertex.y - 0.5, depth - 0.5, 1.0);
 }

interface/src/Webcam.cpp

@@ -19,6 +19,7 @@
 
 #include "Application.h"
 #include "Webcam.h"
+#include "avatar/Face.h"
 
 using namespace cv;
 using namespace std;
@@ -155,7 +156,7 @@ Webcam::~Webcam() {
 const float METERS_PER_MM = 1.0f / 1000.0f;
 
 void Webcam::setFrame(const Mat& color, int format, const Mat& depth, float midFaceDepth,
-        const RotatedRect& faceRect, const JointVector& joints) {
+        float aspectRatio, const RotatedRect& faceRect, const JointVector& joints) {
     IplImage colorImage = color;
     glPixelStorei(GL_UNPACK_ROW_LENGTH, colorImage.widthStep / 3);
     if (_colorTextureID == 0) {
@@ -192,7 +193,8 @@ void Webcam::setFrame(const Mat& color, int format, const Mat& depth, float midF
     glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
     glBindTexture(GL_TEXTURE_2D, 0);
     
-    // store our face rect and joints, update our frame count for fps computation
+    // store our various data, update our frame count for fps computation
+    _aspectRatio = aspectRatio;
     _faceRect = faceRect;
     _joints = joints;
     _frameCount++;
@@ -538,6 +540,10 @@ void FrameGrabber::grabFrame() {
         _smoothedFaceRect.angle = glm::mix(faceRect.angle, _smoothedFaceRect.angle, FACE_RECT_SMOOTHING);
     }
     
+    // the aspect ratio is derived from the face rect dimensions unless we're full-frame
+    float aspectRatio = (_videoSendMode == FULL_FRAME_VIDEO) ? FULL_FRAME_ASPECT : 
+        (_smoothedFaceRect.size.width / _smoothedFaceRect.size.height);
+        
     if (_videoSendMode != NO_VIDEO) {
         if (_colorCodec.name == 0) {
             // initialize encoder context(s)
@@ -628,10 +634,9 @@ void FrameGrabber::grabFrame() {
         // encode the frame
         vpx_codec_encode(&_colorCodec, &vpxImage, ++_frameCount, 1, 0, VPX_DL_REALTIME);
 
-        // start the payload off with the aspect ratio (zero for no face)
+        // start the payload off with the aspect ratio (zero for full frame)
         QByteArray payload(sizeof(float), 0);
-        *(float*)payload.data() = (_videoSendMode == FACE_VIDEO) ?
-            (_smoothedFaceRect.size.width / _smoothedFaceRect.size.height) : 0.0f;
+        *(float*)payload.data() = aspectRatio;
 
         // extract the encoded frame
         vpx_codec_iter_t iterator = 0;
@@ -740,7 +745,7 @@ void FrameGrabber::grabFrame() {
     
     QMetaObject::invokeMethod(Application::getInstance()->getWebcam(), "setFrame",
         Q_ARG(cv::Mat, color), Q_ARG(int, format), Q_ARG(cv::Mat, _grayDepthFrame), Q_ARG(float, _smoothedMidFaceDepth),
-        Q_ARG(cv::RotatedRect, _smoothedFaceRect), Q_ARG(JointVector, joints));
+        Q_ARG(float, aspectRatio), Q_ARG(cv::RotatedRect, _smoothedFaceRect), Q_ARG(JointVector, joints));
 }
 
 bool FrameGrabber::init() {

interface/src/Webcam.h

@@ -50,6 +50,8 @@ public:
     GLuint getDepthTextureID() const { return _depthTextureID; }
     const cv::Size2f& getTextureSize() const { return _textureSize; }
     
+    float getAspectRatio() const { return _aspectRatio; }
+    
     const cv::RotatedRect& getFaceRect() const { return _faceRect; }
     
     const glm::vec3& getEstimatedPosition() const { return _estimatedPosition; }
@@ -63,7 +65,7 @@ public slots:
     
     void setEnabled(bool enabled);
     void setFrame(const cv::Mat& color, int format, const cv::Mat& depth, float midFaceDepth,
-        const cv::RotatedRect& faceRect, const JointVector& joints);
+        float aspectRatio, const cv::RotatedRect& faceRect, const JointVector& joints);
 
 private:
     
@@ -75,6 +77,7 @@ private:
     GLuint _colorTextureID;
     GLuint _depthTextureID;
     cv::Size2f _textureSize;
+    float _aspectRatio;
     cv::RotatedRect _faceRect;
     cv::RotatedRect _initialFaceRect;
     float _initialFaceDepth;

interface/src/avatar/Avatar.cpp

@@ -314,10 +314,7 @@ void Avatar::updateFromGyrosAndOrWebcam(bool gyroLook,
         estimatedPosition = webcam->getEstimatedPosition();
         
         // apply face data
-        _head.getFace().setColorTextureID(webcam->getColorTextureID());
-        _head.getFace().setDepthTextureID(webcam->getDepthTextureID());
-        _head.getFace().setTextureSize(webcam->getTextureSize());
-        _head.getFace().setTextureRect(webcam->getFaceRect());
+        _head.getFace().setFrameFromWebcam();
         
         // compute and store the joint rotations
         const JointVector& joints = webcam->getEstimatedJoints();
@@ -334,7 +331,7 @@ void Avatar::updateFromGyrosAndOrWebcam(bool gyroLook,
             }
         }
     } else {
-        _head.getFace().setColorTextureID(0);
+        _head.getFace().clearFrame();
     }
     _head.setPitch(estimatedRotation.x * amplifyAngle.x + pitchFromTouch);
     _head.setYaw(estimatedRotation.y * amplifyAngle.y + yawFromTouch);
@@ -1300,9 +1297,15 @@ float Avatar::getBallRenderAlpha(int ball, bool lookingInMirror) const {
 }
 
 void Avatar::renderBody(bool lookingInMirror, bool renderAvatarBalls) {
-    
-    //  Render the body as balls and cones
-    if (renderAvatarBalls || !_voxels.getVoxelURL().isValid()) {
+
+    if (_head.getFace().isFullFrame()) {
+        //  Render the full-frame video
+        float alpha = getBallRenderAlpha(BODY_BALL_HEAD_BASE, lookingInMirror);
+        if (alpha > 0.0f) {
+            _head.getFace().render(1.0f);
+        }
+    } else if (renderAvatarBalls || !_voxels.getVoxelURL().isValid()) {
+        //  Render the body as balls and cones
         for (int b = 0; b < NUM_AVATAR_BODY_BALLS; b++) {
             float alpha = getBallRenderAlpha(b, lookingInMirror);
             

interface/src/avatar/Face.cpp

@@ -17,6 +17,7 @@
 #include "Avatar.h"
 #include "Head.h"
 #include "Face.h"
+#include "Webcam.h"
 #include "renderer/ProgramObject.h"
 
 using namespace cv;
@@ -25,7 +26,6 @@ ProgramObject* Face::_program = 0;
 int Face::_texCoordCornerLocation;
 int Face::_texCoordRightLocation;
 int Face::_texCoordUpLocation;
-int Face::_aspectRatioLocation;
 GLuint Face::_vboID;
 GLuint Face::_iboID;
 
@@ -55,11 +55,19 @@ Face::~Face() {
     }
 }
 
-void Face::setTextureRect(const cv::RotatedRect& textureRect) {
-    _textureRect = textureRect;
-    _aspectRatio = _textureRect.size.width / _textureRect.size.height;
+void Face::setFrameFromWebcam() {
+    Webcam* webcam = Application::getInstance()->getWebcam();
+    _colorTextureID = webcam->getColorTextureID();
+    _depthTextureID = webcam->getDepthTextureID();
+    _textureSize = webcam->getTextureSize();
+    _textureRect = webcam->getFaceRect();
+    _aspectRatio = webcam->getAspectRatio();
 }
 
+void Face::clearFrame() {
+    _colorTextureID = 0;
+}
+    
 int Face::processVideoMessage(unsigned char* packetData, size_t dataBytes) {
     if (_colorCodec.name == 0) {
         // initialize decoder context
@@ -210,17 +218,20 @@ bool Face::render(float alpha) {
     glm::vec3 axis = glm::axis(orientation);
     glRotatef(glm::angle(orientation), axis.x, axis.y, axis.z);
         
-    float aspect, scale;
-    if (_aspectRatio == 0.0f) {
+    float aspect, xScale, zScale;
+    if (_aspectRatio == FULL_FRAME_ASPECT) {
         aspect = _textureSize.width / _textureSize.height;
         const float FULL_FRAME_SCALE = 0.5f;
-        scale = FULL_FRAME_SCALE * _owningHead->getScale();
+        xScale = FULL_FRAME_SCALE * _owningHead->getScale();
+        zScale = xScale * 0.3f;
         
     } else {
         aspect = _aspectRatio;
-        scale = BODY_BALL_RADIUS_HEAD_BASE * _owningHead->getScale();    
+        xScale = BODY_BALL_RADIUS_HEAD_BASE * _owningHead->getScale();
+        zScale = xScale * 1.5f;
+        glTranslatef(0.0f, -xScale * 0.75f, -xScale);
     }
-    glScalef(scale, scale, scale);
+    glScalef(xScale, xScale / aspect, zScale);
     
     glColor4f(1.0f, 1.0f, 1.0f, alpha);
     
@@ -254,7 +265,6 @@ bool Face::render(float alpha) {
             _texCoordCornerLocation = _program->uniformLocation("texCoordCorner");
             _texCoordRightLocation = _program->uniformLocation("texCoordRight");
             _texCoordUpLocation = _program->uniformLocation("texCoordUp");
-            _aspectRatioLocation = _program->uniformLocation("aspectRatio");
             
             glGenBuffers(1, &_vboID);
             glBindBuffer(GL_ARRAY_BUFFER, _vboID);
@@ -303,7 +313,6 @@ bool Face::render(float alpha) {
             (points[3].x - points[0].x) / _textureSize.width, (points[3].y - points[0].y) / _textureSize.height);
         _program->setUniformValue(_texCoordUpLocation,
             (points[1].x - points[0].x) / _textureSize.width, (points[1].y - points[0].y) / _textureSize.height);
-        _program->setUniformValue(_aspectRatioLocation, aspect);
         glEnableClientState(GL_VERTEX_ARRAY);
         glVertexPointer(2, GL_FLOAT, 0, 0);
         
@@ -335,13 +344,13 @@ bool Face::render(float alpha) {
         
         glBegin(GL_QUADS);
         glTexCoord2f(points[0].x / _textureSize.width, points[0].y / _textureSize.height);
-        glVertex3f(0.5f, -0.5f / aspect, -0.5f);    
+        glVertex3f(0.5f, -0.5f, 0.0f);    
         glTexCoord2f(points[1].x / _textureSize.width, points[1].y / _textureSize.height);
-        glVertex3f(0.5f, 0.5f / aspect, -0.5f);
+        glVertex3f(0.5f, 0.5f, 0.0f);
         glTexCoord2f(points[2].x / _textureSize.width, points[2].y / _textureSize.height);
-        glVertex3f(-0.5f, 0.5f / aspect, -0.5f);
+        glVertex3f(-0.5f, 0.5f, 0.0f);
         glTexCoord2f(points[3].x / _textureSize.width, points[3].y / _textureSize.height);
-        glVertex3f(-0.5f, -0.5f / aspect, -0.5f);
+        glVertex3f(-0.5f, -0.5f, 0.0f);
         glEnd();
         
         glDisable(GL_TEXTURE_2D);

interface/src/avatar/Face.h

@@ -20,6 +20,8 @@
 class Head;
 class ProgramObject;
 
+const float FULL_FRAME_ASPECT = 0.0f;
+
 class Face : public QObject {
     Q_OBJECT
     
@@ -28,10 +30,10 @@ public:
     Face(Head* owningHead);
     ~Face();
 
-    void setColorTextureID(GLuint colorTextureID) { _colorTextureID = colorTextureID; }
-    void setDepthTextureID(GLuint depthTextureID) { _depthTextureID = depthTextureID; }
-    void setTextureSize(const cv::Size2f& textureSize) { _textureSize = textureSize; }
-    void setTextureRect(const cv::RotatedRect& textureRect);
+    bool isFullFrame() const { return _colorTextureID != 0 && _aspectRatio == FULL_FRAME_ASPECT; }
+
+    void setFrameFromWebcam();
+    void clearFrame();
     
     int processVideoMessage(unsigned char* packetData, size_t dataBytes);
     
@@ -68,7 +70,6 @@ private:
     static int _texCoordCornerLocation;
     static int _texCoordRightLocation;
     static int _texCoordUpLocation;
-    static int _aspectRatioLocation;
     static GLuint _vboID;
     static GLuint _iboID;
 };