bool QtwaylandSurfaceNode::computeLocalSurfaceIntersection(const Geometry::Ray &localRay, QPointF &localIntersection, float &t) const
{
Geometry::Plane surfacePlane = Geometry::Plane(glm::vec3(0.0f), glm::vec3(0.0f,0.0f,1.0f));
if(glm::dot(localRay.d, surfacePlane.n) == 0) return false;
Geometry::Ray transformedRay = localRay.transform(glm::inverse(surfaceTransform()));
t = surfacePlane.intersect(transformedRay);
glm::vec3 intersection = transformedRay.solve(t);
glm::vec3 coords= intersection * glm::vec3(m_surface->size().width(), m_surface->size().height(), 0);
localIntersection = QPointF(coords.x, coords.y);
return true;
}
bool WaylandSurfaceNode::computeLocalSurfaceIntersection(const Geometry::Ray &localRay, glm::vec2 &localIntersection, float &t)
{
Geometry::Plane surfacePlane = Geometry::Plane(glm::vec3(0), glm::vec3(0,0,1));
if(glm::dot(localRay.d, surfacePlane.n) == 0) return false;
Geometry::Ray transformedRay = localRay.transform(glm::inverse(surfaceTransform()));
//transformedRay.print();
t = surfacePlane.intersect(transformedRay);
//std::cout << "t = " << t << std::endl;
glm::vec3 intersection = transformedRay.solve(t);
//Geometry::printVector(glm::vec3(intersection));
//transformedRay.print();
//transformedRay.draw(this, glm::vec3(0,0,1), surfaceTransform());
glm::vec3 coords= intersection * glm::vec3(m_surface->size().x, m_surface->size().y, 0);
localIntersection = glm::vec2(coords);
return t >= 0;
}