/* called by the C++ code for initialization */
extern "C" void device_init (char* cfg)
{
/* create new Embree device */
g_device = rtcNewDevice(cfg);
error_handler(rtcDeviceGetError(g_device));
/* set error handler */
rtcDeviceSetErrorFunction(g_device,error_handler);
RTCAlgorithmFlags aflags;
if (g_mode == MODE_NORMAL) aflags = RTC_INTERSECT1;
else aflags = RTC_INTERSECT1 | RTC_INTERSECT_STREAM;
/* create scene */
g_scene = rtcDeviceNewScene(g_device, RTC_SCENE_DYNAMIC,aflags);
/* create scene with 4 triangulated spheres */
g_scene1 = rtcDeviceNewScene(g_device, RTC_SCENE_STATIC,aflags);
createTriangulatedSphere(g_scene1,Vec3fa( 0, 0,+1),0.5);
createTriangulatedSphere(g_scene1,Vec3fa(+1, 0, 0),0.5);
createTriangulatedSphere(g_scene1,Vec3fa( 0, 0,-1),0.5);
createTriangulatedSphere(g_scene1,Vec3fa(-1, 0, 0),0.5);
rtcCommit (g_scene1);
/* instantiate geometry */
g_instance0 = rtcNewInstance(g_scene,g_scene1);
g_instance1 = rtcNewInstance(g_scene,g_scene1);
g_instance2 = rtcNewInstance(g_scene,g_scene1);
g_instance3 = rtcNewInstance(g_scene,g_scene1);
createGroundPlane(g_scene);
/* set all colors */
colors[0][0] = Vec3fa(0.25,0,0);
colors[0][1] = Vec3fa(0.50,0,0);
colors[0][2] = Vec3fa(0.75,0,0);
colors[0][3] = Vec3fa(1.00,0,0);
colors[1][0] = Vec3fa(0,0.25,0);
colors[1][1] = Vec3fa(0,0.50,0);
colors[1][2] = Vec3fa(0,0.75,0);
colors[1][3] = Vec3fa(0,1.00,0);
colors[2][0] = Vec3fa(0,0,0.25);
colors[2][1] = Vec3fa(0,0,0.50);
colors[2][2] = Vec3fa(0,0,0.75);
colors[2][3] = Vec3fa(0,0,1.00);
colors[3][0] = Vec3fa(0.25,0.25,0);
colors[3][1] = Vec3fa(0.50,0.50,0);
colors[3][2] = Vec3fa(0.75,0.75,0);
colors[3][3] = Vec3fa(1.00,1.00,0);
/* set start render mode */
if (g_mode == MODE_NORMAL) renderTile = renderTileStandard;
else renderTile = renderTileStandardStream;
key_pressed_handler = device_key_pressed_default;
}
EmbreeScene *embree_init(OzyScene ozy_scene) {
RTCDevice dev = rtcNewDevice(NULL);
RTCScene scene = rtcDeviceNewScene(dev,RTC_SCENE_STATIC, RTC_INTERSECT1);
for(unsigned i=0;i<ozy_scene.objects.count;i++){
Object *obj = ozy_scene.objects.data + i;
unsigned geomID = rtcNewTriangleMesh(scene, RTC_GEOMETRY_STATIC ,
obj->num_tris, obj->num_verts);
float* vertices = static_cast<float*>(rtcMapBuffer(scene, geomID,
RTC_VERTEX_BUFFER));
for(u32 ii=0;ii<obj->num_verts;ii++){
vertices[ii * 4 + 0] = obj->verts[ii].x;
vertices[ii * 4 + 1] = obj->verts[ii].y;
vertices[ii * 4 + 2] = obj->verts[ii].z;
}
rtcUnmapBuffer(scene, geomID, RTC_VERTEX_BUFFER);
u32* triangles = static_cast<u32*>( rtcMapBuffer(scene, geomID, RTC_INDEX_BUFFER));
for(u32 ii=0;ii<obj->num_tris*3;ii++){
triangles[ii] = obj->tris[ii];
}
rtcUnmapBuffer(scene, geomID, RTC_INDEX_BUFFER);
}
rtcCommit(scene);
EmbreeScene *embree_scene = new EmbreeScene;
embree_scene->dev = dev;
embree_scene->scene = scene;
return embree_scene;
}
/* called by the C++ code for initialization */
extern "C" void device_init (char* cfg)
{
/* create new Embree device */
g_device = rtcNewDevice(cfg);
/* configure the size of the software cache used for subdivision geometry */
rtcDeviceSetParameter1i(g_device,RTC_SOFTWARE_CACHE_SIZE,100*1024*1024);
/* set error handler */
rtcDeviceSetErrorFunction(g_device,error_handler);
/* create scene */
g_scene = rtcDeviceNewScene(g_device,RTC_SCENE_DYNAMIC | RTC_SCENE_ROBUST,RTC_INTERSECT1 | RTC_INTERPOLATE);
/* add ground plane */
addGroundPlane(g_scene);
/* add cube */
addCube(g_scene);
/* commit changes to scene */
rtcCommit (g_scene);
/* set start render mode */
renderPixel = renderPixelStandard;
key_pressed_handler = device_key_pressed_default;
}
/* called by the C++ code for initialization */
extern "C" void device_init (char* cfg)
{
/* create new Embree device */
g_device = rtcNewDevice(cfg);
error_handler(rtcDeviceGetError(g_device));
/* set error handler */
rtcDeviceSetErrorFunction(g_device,error_handler);
/* create scene */
g_scene = rtcDeviceNewScene(g_device, RTC_SCENE_STATIC,RTC_INTERSECT1 | RTC_INTERPOLATE);
/* add ground plane */
addGroundPlane(g_scene);
/* add curve */
addCurve(g_scene,Vec3fa(0.0f,0.0f,0.0f));
/* commit changes to scene */
rtcCommit (g_scene);
/* set start render mode */
renderTile = renderTileStandard;
key_pressed_handler = device_key_pressed_default;
}
void lazyCreate(LazyGeometry* instance)
{
/* one thread will switch the object from the LAZY_INVALID state to the LAZY_CREATE state */
if (atomic_cmpxchg((int32_t*)&instance->state,LAZY_INVALID,LAZY_CREATE) == 0)
{
/* create the geometry */
printf("creating sphere %i\n",instance->userID);
instance->object = rtcDeviceNewScene(g_device,RTC_SCENE_STATIC,RTC_INTERSECT1);
createTriangulatedSphere(instance->object,instance->center,instance->radius);
/* now switch to the LAZY_COMMIT state */
__memory_barrier();
instance->state = LAZY_COMMIT;
}
else
{
/* wait until the geometry got created */
while (atomic_cmpxchg((int32_t*)&instance->state,10,11) < LAZY_COMMIT) {
// instead of actively spinning here, best use a condition to let the thread sleep, or let it help in the creation stage
}
}
/* multiple threads might enter the rtcCommit function to jointly
* build the internal data structures */
rtcCommit(instance->object);
/* switch to LAZY_VALID state */
atomic_cmpxchg((int32_t*)&instance->state,LAZY_COMMIT,LAZY_VALID);
}
/* called by the C++ code for initialization */
extern "C" void device_init (char* cfg)
{
/* create new Embree device */
g_device = rtcNewDevice(cfg);
error_handler(nullptr,rtcDeviceGetError(g_device));
/* set error handler */
rtcDeviceSetErrorFunction2(g_device,error_handler,nullptr);
/* create scene */
RTCAlgorithmFlags aflags;
if (g_mode == MODE_NORMAL) aflags = RTC_INTERSECT1;
else aflags = RTC_INTERSECT1 | RTC_INTERSECT_STREAM;
g_scene = rtcDeviceNewScene(g_device, RTC_SCENE_STATIC | RTC_SCENE_HIGH_QUALITY,aflags);
/* add cube */
addCube(g_scene,Vec3fa(0.0f,0.0f,0.0f),Vec3fa(10.0f,1.0f,1.0f),45.0f);
//addSubdivCube(g_scene);
/* add ground plane */
addGroundPlane(g_scene);
/* commit changes to scene */
rtcCommit (g_scene);
/* set start render mode */
if (g_mode == MODE_NORMAL) renderTile = renderTileStandard;
else renderTile = renderTileStandardStream;
key_pressed_handler = device_key_pressed_default;
}
void Scene::embreeInit(RTCDevice device) {
Embree.scene = rtcDeviceNewScene(device, EMBREE_SFLAGS_SCENE, EMBREE_AFLAGS_SCENE);
for (uint i = 0; i < objects.size(); i++) {
objects[i]->embreeInit(device);
uint instID = rtcNewInstance2(Embree.scene, objects[i]->Embree.scene);
rtcSetTransform2(Embree.scene, instID, RTC_MATRIX_COLUMN_MAJOR_ALIGNED16, objects[i]->matrix.e);
Embree.instIDmap[instID] = objects[i];
}
rtcCommit(Embree.scene);
}
RTCScene convertScene(ISPCScene* scene_in)
{
/* create scene */
RTCScene scene_out = rtcDeviceNewScene(g_device, RTC_SCENE_STATIC | RTC_SCENE_INCOHERENT, RTC_INTERSECT1);
for (size_t i=0; i<scene_in->numGeometries; i++)
{
ISPCGeometry* geometry = scene_in->geometries[i];
if (geometry->type == TRIANGLE_MESH)
convertTriangleMesh((ISPCTriangleMesh*) geometry, scene_out);
else if (geometry->type == HAIR_SET)
convertHairSet((ISPCHairSet*) geometry, scene_out);
}
/* commit changes to scene */
rtcCommit (scene_out);
return scene_out;
}
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);
}
/* called by the C++ code for initialization */
extern "C" void device_init (char* cfg)
{
/* create new Embree device */
g_device = rtcNewDevice(cfg);
/* set error handler */
rtcDeviceSetErrorFunction(g_device,error_handler);
/* create scene */
g_scene = rtcDeviceNewScene(g_device,RTC_SCENE_DYNAMIC | RTC_SCENE_ROBUST, RTC_INTERSECT1);
/* create some triangulated spheres */
for (int i=0; i<numSpheres; i++)
{
const float phi = i*2.0f*float(pi)/numSpheres;
const float r = 2.0f*float(pi)/numSpheres;
const Vec3fa p = 2.0f*Vec3fa(sin(phi),0.0f,-cos(phi));
//RTCGeometryFlags flags = i%3 == 0 ? RTC_GEOMETRY_STATIC : i%3 == 1 ? RTC_GEOMETRY_DEFORMABLE : RTC_GEOMETRY_DYNAMIC;
RTCGeometryFlags flags = i%2 ? RTC_GEOMETRY_DEFORMABLE : RTC_GEOMETRY_DYNAMIC;
//RTCGeometryFlags flags = RTC_GEOMETRY_DEFORMABLE;
int id = createSphere(flags,p,r);
position[id] = p;
radius[id] = r;
colors[id].x = (i%16+1)/17.0f;
colors[id].y = (i%8+1)/9.0f;
colors[id].z = (i%4+1)/5.0f;
}
/* add ground plane to scene */
int id = addGroundPlane(g_scene);
colors[id] = Vec3fa(1.0f,1.0f,1.0f);
/* commit changes to scene */
rtcCommit (g_scene);
/* set start render mode */
renderPixel = renderPixelStandard;
key_pressed_handler = device_key_pressed_default;
}
RTCScene convertScene(ISPCScene* scene_in)
{
size_t numGeometries = scene_in->numGeometries;
int scene_flags = RTC_SCENE_STATIC | RTC_SCENE_INCOHERENT;
int scene_aflags = RTC_INTERSECT1 | RTC_INTERSECT_STREAM | RTC_INTERPOLATE;
RTCScene scene_out = rtcDeviceNewScene(g_device, (RTCSceneFlags)scene_flags,(RTCAlgorithmFlags) scene_aflags);
for (size_t i=0; i<scene_in->numGeometries; i++)
{
ISPCGeometry* geometry = scene_in->geometries[i];
if (geometry->type == SUBDIV_MESH) {
unsigned int geomID = convertSubdivMesh((ISPCSubdivMesh*) geometry, scene_out);
assert(geomID == i);
}
else if (geometry->type == TRIANGLE_MESH) {
unsigned int geomID = convertTriangleMesh((ISPCTriangleMesh*) geometry, scene_out);
assert(geomID == i);
}
else if (geometry->type == QUAD_MESH) {
unsigned int geomID = convertQuadMesh((ISPCQuadMesh*) geometry, scene_out);
assert(geomID == i);
}
else if (geometry->type == LINE_SEGMENTS) {
unsigned int geomID = convertLineSegments((ISPCLineSegments*) geometry, scene_out);
assert(geomID == i);
}
else if (geometry->type == HAIR_SET) {
unsigned int geomID = convertHairSet((ISPCHairSet*) geometry, scene_out);
assert(geomID == i);
}
else if (geometry->type == CURVES) {
unsigned int geomID = convertCurveGeometry((ISPCHairSet*) geometry, scene_out);
assert(geomID == i);
}
else
assert(false);
}
return scene_out;
}
/* called by the C++ code for initialization */
extern "C" void device_init (char* cfg)
{
/* create new Embree device */
g_device = rtcNewDevice(cfg);
/* set error handler */
rtcDeviceSetErrorFunction(g_device,error_handler);
/* create scene */
g_scene = rtcDeviceNewScene(g_device,RTC_SCENE_STATIC,RTC_INTERSECT1);
/* instantiate geometry */
createGroundPlane(g_scene);
for (size_t i=0; i<numSpheres; i++) {
float a = 2.0*float(pi)*(float)i/(float)numSpheres;
createLazyObject(g_scene,i,10.0f*Vec3fa(cosf(a),0,sinf(a)),1);
}
rtcCommit (g_scene);
/* set start render mode */
renderPixel = renderPixelStandard;
key_pressed_handler = device_key_pressed_default;
}
extern "C" RTCScene ispcNewScene2 (RTCDevice device, RTCSceneFlags flags, RTCAlgorithmFlags aflags)
{
if (!isCoherent(flags) && !isIncoherent(flags)) flags = RTCSceneFlags(flags | RTC_SCENE_COHERENT);
return rtcDeviceNewScene(device,flags,aflags);
}
RTCScene createScene(ISPCScene* scene_in)
{
int scene_flags = RTC_SCENE_INCOHERENT | RTC_SCENE_DYNAMIC;
int scene_aflags = RTC_INTERSECT1 | RTC_INTERSECT_STREAM | RTC_INTERPOLATE;
return rtcDeviceNewScene(g_device, (RTCSceneFlags)scene_flags,(RTCAlgorithmFlags) scene_aflags);
}