void Sphere::Register(RTCScene scene, unsigned int geomID) {
unsigned int obtainedGeomID = rtcNewUserGeometry(scene, 1);
if(obtainedGeomID != geomID)
throw std::runtime_error("Wrong geomID provided when registering a Sphere");
m_GeomID = geomID;
rtcSetUserData(scene, geomID, this);
rtcSetBoundsFunction(scene, geomID, (RTCBoundsFunc)&BoundsFunc);
rtcSetIntersectFunction(scene, geomID, (RTCIntersectFunc)&IntersectFunc);
rtcSetOccludedFunction (scene, geomID, (RTCOccludedFunc )&OccludedFunc);
}
Sphere* createAnalyticalSpheres (RTCScene scene, size_t N)
{
unsigned int geomID = rtcNewUserGeometry(scene,N);
Sphere* spheres = new Sphere[N];
for (int i=0; i<N; i++) spheres[i].geomID = geomID;
rtcSetUserData(scene,geomID,spheres);
rtcSetBoundsFunction(scene,geomID,(RTCBoundsFunc)&sphereBoundsFunc);
rtcSetIntersectFunction(scene,geomID,(RTCIntersectFunc)&sphereIntersectFunc);
rtcSetOccludedFunction (scene,geomID,(RTCOccludedFunc )&sphereOccludedFunc);
return spheres;
}
Sphere* createAnalyticalSphere (RTCScene scene, Vec3f p, float r)
{
unsigned int geomID = rtcNewUserGeometry(scene,1);
Sphere* sphere = new Sphere;
sphere->p = p;
sphere->r = r;
sphere->geomID = geomID;
rtcSetUserData(scene,geomID,sphere);
rtcSetBoundsFunction(scene,geomID,(RTCBoundsFunc)&sphereBoundsFunc);
rtcSetIntersectFunction(scene,geomID,(RTCIntersectFunc)&sphereIntersectFunc);
rtcSetOccludedFunction (scene,geomID,(RTCOccludedFunc )&sphereOccludedFunc);
return sphere;
}
LazyGeometry* createLazyObject (RTCScene scene, int userID, const Vec3fa& center, const float radius)
{
LazyGeometry* instance = new LazyGeometry;
instance->state = LAZY_INVALID;
instance->object = nullptr;
instance->userID = userID;
instance->center = center;
instance->radius = radius;
instance->geometry = rtcNewUserGeometry(scene,1);
rtcSetUserData(scene,instance->geometry,instance);
rtcSetBoundsFunction(scene,instance->geometry,(RTCBoundsFunc)&instanceBoundsFunc);
rtcSetIntersectFunction(scene,instance->geometry,(RTCIntersectFunc)&instanceIntersectFunc);
rtcSetOccludedFunction (scene,instance->geometry,(RTCOccludedFunc )&instanceOccludedFunc);
return instance;
}
Instance* createInstance (RTCScene scene, RTCScene object, int userID, Vec3f lower, Vec3f upper)
{
Instance* instance = new Instance;
instance->object = object;
instance->userID = userID;
instance->lower = lower;
instance->upper = upper;
instance->local2world.l.vx = Vec3f(1,0,0);
instance->local2world.l.vy = Vec3f(0,1,0);
instance->local2world.l.vz = Vec3f(0,0,1);
instance->local2world.p = Vec3f(0,0,0);
instance->geometry = rtcNewUserGeometry(scene,1);
rtcSetUserData(scene,instance->geometry,instance);
rtcSetBoundsFunction(scene,instance->geometry,(RTCBoundsFunc)&instanceBoundsFunc);
rtcSetIntersectFunction(scene,instance->geometry,(RTCIntersectFunc)&instanceIntersectFunc);
rtcSetOccludedFunction (scene,instance->geometry,(RTCOccludedFunc )&instanceOccludedFunc);
return instance;
}
void Object::embreeInit(RTCDevice device) {
Embree.scene = rtcDeviceNewScene(device, EMBREE_SFLAGS_OBJECT, EMBREE_AFLAGS_OBJECT);
// Init embree for meshes
for (uint i = 0; i < geometries.size(); i++) { // If it crashes here, then it can't find the .mtl or the last line is not empty
uint geomID = geometries[i]->embreeInit(Embree.scene);
Embree.geomIDmap[geomID] = geometries[i];
// Set filter functions
rtcSetOcclusionFilterFunction(Embree.scene, geomID, (RTCFilterFunc)&RayEngine::embreeOcclusionFilter);
rtcSetOcclusionFilterFunction8(Embree.scene, geomID, (RTCFilterFunc8)&RayEngine::embreeOcclusionFilter8);
rtcSetUserData(Embree.scene, geomID, userData);
}
rtcCommit(Embree.scene);
}
