bool WebEntityItem::findDetailedParabolaIntersection(const glm::vec3& origin, const glm::vec3& velocity, const glm::vec3& acceleration,
OctreeElementPointer& element, float& parabolicDistance,
BoxFace& face, glm::vec3& surfaceNormal,
QVariantMap& extraInfo, bool precisionPicking) const {
glm::vec3 dimensions = getScaledDimensions();
glm::vec2 xyDimensions(dimensions.x, dimensions.y);
glm::quat rotation = getWorldOrientation();
glm::vec3 position = getWorldPosition() + rotation * (dimensions * (ENTITY_ITEM_DEFAULT_REGISTRATION_POINT - getRegistrationPoint()));
glm::quat inverseRot = glm::inverse(rotation);
glm::vec3 localOrigin = inverseRot * (origin - position);
glm::vec3 localVelocity = inverseRot * velocity;
glm::vec3 localAcceleration = inverseRot * acceleration;
if (findParabolaRectangleIntersection(localOrigin, localVelocity, localAcceleration, xyDimensions, parabolicDistance)) {
float localIntersectionVelocityZ = localVelocity.z + localAcceleration.z * parabolicDistance;
glm::vec3 forward = rotation * Vectors::FRONT;
if (localIntersectionVelocityZ > 0.0f) {
face = MIN_Z_FACE;
surfaceNormal = forward;
} else {
face = MAX_Z_FACE;
surfaceNormal = -forward;
}
return true;
} else {
return false;
}
}
bool WebEntityItem::findDetailedRayIntersection(const glm::vec3& origin, const glm::vec3& direction,
bool& keepSearching, OctreeElementPointer& element, float& distance,
BoxFace& face, glm::vec3& surfaceNormal,
void** intersectedObject, bool precisionPicking) const {
glm::vec3 dimensions = getDimensions();
glm::vec2 xyDimensions(dimensions.x, dimensions.y);
glm::quat rotation = getRotation();
glm::vec3 position = getPosition() + rotation *
(dimensions * (getRegistrationPoint() - ENTITY_ITEM_DEFAULT_REGISTRATION_POINT));
// FIXME - should set face and surfaceNormal
return findRayRectangleIntersection(origin, direction, rotation, position, xyDimensions, distance);
}
bool TextEntityItem::findDetailedRayIntersection(const glm::vec3& origin, const glm::vec3& direction,
OctreeElementPointer& element, float& distance,
BoxFace& face, glm::vec3& surfaceNormal,
QVariantMap& extraInfo, bool precisionPicking) const {
glm::vec3 dimensions = getScaledDimensions();
glm::vec2 xyDimensions(dimensions.x, dimensions.y);
glm::quat rotation = getWorldOrientation();
glm::vec3 position = getWorldPosition() + rotation *
(dimensions * (ENTITY_ITEM_DEFAULT_REGISTRATION_POINT - getRegistrationPoint()));
// FIXME - should set face and surfaceNormal
return findRayRectangleIntersection(origin, direction, rotation, position, xyDimensions, distance);
}
bool WebEntityItem::findDetailedRayIntersection(const glm::vec3& origin, const glm::vec3& direction,
OctreeElementPointer& element, float& distance,
BoxFace& face, glm::vec3& surfaceNormal,
QVariantMap& extraInfo, bool precisionPicking) const {
glm::vec3 dimensions = getScaledDimensions();
glm::vec2 xyDimensions(dimensions.x, dimensions.y);
glm::quat rotation = getWorldOrientation();
glm::vec3 position = getWorldPosition() + rotation * (dimensions * (ENTITY_ITEM_DEFAULT_REGISTRATION_POINT - getRegistrationPoint()));
rotation = EntityItem::getBillboardRotation(position, rotation, _billboardMode, EntityItem::getPrimaryViewFrustumPosition());
if (findRayRectangleIntersection(origin, direction, rotation, position, xyDimensions, distance)) {
glm::vec3 forward = rotation * Vectors::FRONT;
if (glm::dot(forward, direction) > 0.0f) {
face = MAX_Z_FACE;
surfaceNormal = -forward;
} else {
face = MIN_Z_FACE;
surfaceNormal = forward;
}
return true;
} else {
return false;
}
}
