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Render other avatar's lookat to point at my camera if the other avatar

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is looking at my head.
This commit is contained in:
Mark Peng 2013-08-05 14:26:39 -07:00
parent ea0fa8e5c7
commit 1790b0595c
4 changed files with 26 additions and 1 deletions
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15
interface/src/Application.cpp
View file

@ -2244,7 +2244,7 @@ Avatar* Application::isLookingAtOtherAvatar(glm::vec3& mouseRayOrigin, glm::vec3
if (node->getLinkedData() != NULL && node->getType() == NODE_TYPE_AGENT) { if (node->getLinkedData() != NULL && node->getType() == NODE_TYPE_AGENT) {
Avatar* avatar = (Avatar *) node->getLinkedData(); Avatar* avatar = (Avatar *) node->getLinkedData();
glm::vec3 headPosition = avatar->getHead().getPosition(); glm::vec3 headPosition = avatar->getHead().getPosition();
if (rayIntersectsSphere(mouseRayOrigin, mouseRayDirection, headPosition, HEAD_SPHERE_RADIUS)) { if (rayIntersectsSphere(mouseRayOrigin, mouseRayDirection, headPosition, HEAD_SPHERE_RADIUS * avatar->getScale())) {
eyePosition = avatar->getHead().getEyePosition(); eyePosition = avatar->getHead().getEyePosition();
_lookatIndicatorScale = avatar->getScale(); _lookatIndicatorScale = avatar->getScale();
_lookatOtherPosition = headPosition; _lookatOtherPosition = headPosition;
@ -2256,6 +2256,16 @@ Avatar* Application::isLookingAtOtherAvatar(glm::vec3& mouseRayOrigin, glm::vec3
return NULL; return NULL;
} }
bool Application::isLookingAtMyAvatar(Avatar* avatar) {
glm::vec3 theirLookat = avatar->getHead().getLookAtPosition();
glm::vec3 myHeadPosition = _myAvatar.getHead().getPosition();
if (pointInSphere(theirLookat, myHeadPosition, HEAD_SPHERE_RADIUS * _myAvatar.getScale())) {
return true;
}
return false;
}
void Application::renderLookatIndicator(glm::vec3 pointOfInterest, Camera& whichCamera) { void Application::renderLookatIndicator(glm::vec3 pointOfInterest, Camera& whichCamera) {
const float DISTANCE_FROM_HEAD_SPHERE = 0.1f * _lookatIndicatorScale; const float DISTANCE_FROM_HEAD_SPHERE = 0.1f * _lookatIndicatorScale;
@ -2988,6 +2998,9 @@ void Application::displaySide(Camera& whichCamera) {
if (!avatar->isInitialized()) { if (!avatar->isInitialized()) {
avatar->init(); avatar->init();
} }
if (isLookingAtMyAvatar(avatar)) {
avatar->getHead().setLookAtPosition(_myCamera.getPosition());
}
avatar->render(false, _renderAvatarBalls->isChecked()); avatar->render(false, _renderAvatarBalls->isChecked());
avatar->setDisplayingLookatVectors(_renderLookatOn->isChecked()); avatar->setDisplayingLookatVectors(_renderLookatOn->isChecked());
} }

1
interface/src/Application.h
View file

@ -212,6 +212,7 @@ private:
void update(float deltaTime); void update(float deltaTime);
Avatar* isLookingAtOtherAvatar(glm::vec3& mouseRayOrigin, glm::vec3& mouseRayDirection, Avatar* isLookingAtOtherAvatar(glm::vec3& mouseRayOrigin, glm::vec3& mouseRayDirection,
glm::vec3& eyePosition, uint16_t& nodeID); glm::vec3& eyePosition, uint16_t& nodeID);
bool isLookingAtMyAvatar(Avatar* avatar);
void renderLookatIndicator(glm::vec3 pointOfInterest, Camera& whichCamera); void renderLookatIndicator(glm::vec3 pointOfInterest, Camera& whichCamera);
void updateAvatar(float deltaTime); void updateAvatar(float deltaTime);

9
interface/src/Util.cpp
View file

@ -607,3 +607,12 @@ bool rayIntersectsSphere(glm::vec3& rayStarting, glm::vec3& rayNormalizedDirecti
} }
return false; return false;
} }
bool pointInSphere(glm::vec3& point, glm::vec3& sphereCenter, double sphereRadius) {
glm::vec3 diff = point - sphereCenter;
double mag = sqrt(glm::dot(diff, diff));
if (mag <= sphereRadius) {
return true;
}
return false;
}

2
interface/src/Util.h
View file

@ -76,4 +76,6 @@ float loadSetting(QSettings* settings, const char* name, float defaultValue);
bool rayIntersectsSphere(glm::vec3& rayStarting, glm::vec3& rayNormalizedDirection, glm::vec3& sphereCenter, double sphereRadius); bool rayIntersectsSphere(glm::vec3& rayStarting, glm::vec3& rayNormalizedDirection, glm::vec3& sphereCenter, double sphereRadius);
bool pointInSphere(glm::vec3& point, glm::vec3& sphereCenter, double sphereRadius);
#endif #endif