std::shared_ptr<Light> MakeLight(const std::string &name,
const ParamSet ¶mSet,
const Transform &light2world,
const MediumInterface &mediumInterface) {
std::shared_ptr<Light> light;
if (name == "point")
light =
CreatePointLight(light2world, mediumInterface.outside, paramSet);
else if (name == "spot")
light = CreateSpotLight(light2world, mediumInterface.outside, paramSet);
else if (name == "goniometric")
light = CreateGoniometricLight(light2world, mediumInterface.outside,
paramSet);
else if (name == "projection")
light = CreateProjectionLight(light2world, mediumInterface.outside,
paramSet);
else if (name == "distant")
light = CreateDistantLight(light2world, paramSet);
else if (name == "infinite" || name == "exinfinite")
light = CreateInfiniteLight(light2world, paramSet);
else
Warning("Light \"%s\" unknown.", name.c_str());
paramSet.ReportUnused();
return light;
}
// Object Creation Function Definitions
std::vector<std::shared_ptr<Shape>> MakeShapes(const std::string &name,
const Transform *object2world,
const Transform *world2object,
bool reverseOrientation,
const ParamSet ¶mSet) {
std::vector<std::shared_ptr<Shape>> shapes;
std::shared_ptr<Shape> s;
if (name == "sphere")
s = CreateSphereShape(object2world, world2object, reverseOrientation,
paramSet);
// Create remaining single _Shape_ types
else if (name == "cylinder")
s = CreateCylinderShape(object2world, world2object, reverseOrientation,
paramSet);
else if (name == "disk")
s = CreateDiskShape(object2world, world2object, reverseOrientation,
paramSet);
else if (name == "cone")
s = CreateConeShape(object2world, world2object, reverseOrientation,
paramSet);
else if (name == "paraboloid")
s = CreateParaboloidShape(object2world, world2object,
reverseOrientation, paramSet);
else if (name == "hyperboloid")
s = CreateHyperboloidShape(object2world, world2object,
reverseOrientation, paramSet);
if (s != nullptr) shapes.push_back(s);
// Create multiple-_Shape_ types
else if (name == "curve")
shapes = CreateCurveShape(object2world, world2object,
reverseOrientation, paramSet);
else if (name == "trianglemesh")
shapes = CreateTriangleMeshShape(object2world, world2object,
reverseOrientation, paramSet,
&graphicsState.floatTextures);
else if (name == "plymesh")
shapes = CreatePLYMesh(object2world, world2object, reverseOrientation,
paramSet, &graphicsState.floatTextures);
else if (name == "heightfield")
shapes = CreateHeightfield(object2world, world2object,
reverseOrientation, paramSet);
else if (name == "loopsubdiv")
shapes = CreateLoopSubdiv(object2world, world2object,
reverseOrientation, paramSet);
else if (name == "nurbs")
shapes = CreateNURBS(object2world, world2object, reverseOrientation,
paramSet);
else
Warning("Shape \"%s\" unknown.", name.c_str());
paramSet.ReportUnused();
return shapes;
}
std::shared_ptr<Primitive> MakeAccelerator(
const std::string &name,
const std::vector<std::shared_ptr<Primitive>> &prims,
const ParamSet ¶mSet) {
std::shared_ptr<Primitive> accel;
if (name == "bvh")
accel = CreateBVHAccelerator(prims, paramSet);
else if (name == "kdtree")
accel = CreateKdTreeAccelerator(prims, paramSet);
else
Warning("Accelerator \"%s\" unknown.", name.c_str());
paramSet.ReportUnused();
return accel;
}
std::shared_ptr<AreaLight> MakeAreaLight(const std::string &name,
const Transform &light2world,
const MediumInterface &mediumInterface,
const ParamSet ¶mSet,
const std::shared_ptr<Shape> &shape) {
std::shared_ptr<AreaLight> area;
if (name == "area" || name == "diffuse")
area = CreateDiffuseAreaLight(light2world, mediumInterface.outside,
paramSet, shape);
else
Warning("Area light \"%s\" unknown.", name.c_str());
paramSet.ReportUnused();
return area;
}
COREDLL void pbrtShape(const string &name,
const ParamSet ¶ms) {
VERIFY_WORLD("Shape");
Reference<Shape> shape = MakeShape(name,
curTransform, graphicsState.reverseOrientation,
params);
if (!shape) return;
params.ReportUnused();
// Initialize area light for shape
AreaLight *area = NULL;
if (graphicsState.areaLight != "")
area = MakeAreaLight(graphicsState.areaLight,
curTransform, graphicsState.areaLightParams, shape);
// Initialize material for shape
TextureParams mp(params,
graphicsState.materialParams,
graphicsState.floatTextures,
graphicsState.spectrumTextures);
Reference<Texture<float> > bump = NULL;
Reference<Material> mtl;
string Default = "duh";
if(graphicsState.materialParams.FindOneString("reradiation", Default).compare(Default) != 0)
{
mtl = MakeMaterial(graphicsState.material, curTransform, mp);
}else{
mtl = MakeMaterial(graphicsState.material, curTransform, mp, &(graphicsState.materialParams));
}
if (!mtl)
mtl = MakeMaterial("matte", curTransform, mp);
if (!mtl)
Severe("Unable to create \"matte\" material?!");
// Create primitive and add to scene or current instance
Reference<Primitive> prim =
new GeometricPrimitive(shape, mtl, area);
if (renderOptions->currentInstance) {
if (area)
Warning("Area lights not supported "
"with object instancing");
renderOptions->currentInstance->push_back(prim);
}
else {
renderOptions->primitives.push_back(prim);
if (area != NULL) {
// Add area light for primitive to light vector
renderOptions->lights.push_back(area);
}
}
}
std::shared_ptr<Medium> MakeMedium(const std::string &name,
const ParamSet ¶mSet,
const Transform &medium2world) {
Float sig_a_rgb[3] = {.0011f, .0024f, .014f},
sig_s_rgb[3] = {2.55f, 3.21f, 3.77f};
Spectrum sig_a = Spectrum::FromRGB(sig_a_rgb),
sig_s = Spectrum::FromRGB(sig_s_rgb);
std::string preset = paramSet.FindOneString("preset", "");
bool found = GetMediumScatteringProperties(preset, &sig_a, &sig_s);
if (preset != "" && !found)
Warning("Material preset \"%s\" not found. Using defaults.",
preset.c_str());
Float scale = paramSet.FindOneFloat("scale", 1.f);
Float g = paramSet.FindOneFloat("g", 0.0f);
sig_a = paramSet.FindOneSpectrum("sigma_a", sig_a) * scale;
sig_s = paramSet.FindOneSpectrum("sigma_s", sig_s) * scale;
Medium *m = NULL;
if (name == "homogeneous") {
m = new HomogeneousMedium(sig_a, sig_s, g);
} else if (name == "heterogeneous") {
int nitems;
const Float *data = paramSet.FindFloat("density", &nitems);
if (!data) {
Error("No \"density\" values provided for heterogeneous medium?");
return NULL;
}
int nx = paramSet.FindOneInt("nx", 1);
int ny = paramSet.FindOneInt("ny", 1);
int nz = paramSet.FindOneInt("nz", 1);
Point3f p0 = paramSet.FindOnePoint3f("p0", Point3f(0.f, 0.f, 0.f));
Point3f p1 = paramSet.FindOnePoint3f("p1", Point3f(1.f, 1.f, 1.f));
if (nitems != nx * ny * nz) {
Error(
"GridDensityMedium has %d density values; expected nx*ny*nz = "
"%d",
nitems, nx * ny * nz);
return NULL;
}
Transform data2Medium = Translate(Vector3f(p0)) *
Scale(p1.x - p0.x, p1.y - p0.y, p1.z - p0.z);
m = new GridDensityMedium(sig_a, sig_s, g, nx, ny, nz,
medium2world * data2Medium, data);
} else
Warning("Medium \"%s\" unknown.", name.c_str());
paramSet.ReportUnused();
return std::shared_ptr<Medium>(m);
}
void Context::PortalShape(const string &n, const ParamSet ¶ms) {
VERIFY_WORLD("PortalShape");
renderFarm->send("luxPortalShape", n, params);
boost::shared_ptr<Primitive> sh(MakeShape(n, curTransform.StaticTransform(),
graphicsState->reverseOrientation, params));
if (!sh)
return;
params.ReportUnused();
if (graphicsState->currentLight != "") {
if (graphicsState->currentLightPtr0)
graphicsState->currentLightPtr0->AddPortalShape(sh);
if (graphicsState->currentLightPtr1)
graphicsState->currentLightPtr1->AddPortalShape(sh);
}
}
// Object Creation Function Definitions
Reference<Shape> MakeShape(const string &name,
const Transform *object2world, const Transform *world2object,
bool reverseOrientation, const ParamSet ¶mSet) {
Shape *s = NULL;
if (name == "sphere")
s = CreateSphereShape(object2world, world2object,
reverseOrientation, paramSet);
// Create remaining _Shape_ types
else if(name == "wavefront")
s = CreateWaveFrontShape(object2world, world2object, reverseOrientation,
paramSet);
else if (name == "cylinder")
s = CreateCylinderShape(object2world, world2object, reverseOrientation,
paramSet);
else if (name == "disk")
s = CreateDiskShape(object2world, world2object, reverseOrientation,
paramSet);
else if (name == "cone")
s = CreateConeShape(object2world, world2object, reverseOrientation,
paramSet);
else if (name == "paraboloid")
s = CreateParaboloidShape(object2world, world2object, reverseOrientation,
paramSet);
else if (name == "hyperboloid")
s = CreateHyperboloidShape(object2world, world2object, reverseOrientation,
paramSet);
else if (name == "trianglemesh")
s = CreateTriangleMeshShape(object2world, world2object, reverseOrientation,
paramSet, &graphicsState.floatTextures);
else if (name == "heightfield")
s = CreateHeightfieldShape(object2world, world2object, reverseOrientation,
paramSet);
else if (name == "loopsubdiv")
s = CreateLoopSubdivShape(object2world, world2object, reverseOrientation,
paramSet);
else if (name == "nurbs")
s = CreateNURBSShape(object2world, world2object, reverseOrientation,
paramSet);
else
Warning("Shape \"%s\" unknown.", name.c_str());
paramSet.ReportUnused();
return s;
}
std::unique_ptr<Filter> MakeFilter(const std::string &name,
const ParamSet ¶mSet) {
Filter *filter = nullptr;
if (name == "box")
filter = CreateBoxFilter(paramSet);
else if (name == "gaussian")
filter = CreateGaussianFilter(paramSet);
else if (name == "mitchell")
filter = CreateMitchellFilter(paramSet);
else if (name == "sinc")
filter = CreateSincFilter(paramSet);
else if (name == "triangle")
filter = CreateTriangleFilter(paramSet);
else
Warning("Filter \"%s\" unknown.", name.c_str());
paramSet.ReportUnused();
return std::unique_ptr<Filter>(filter);
}
std::shared_ptr<Sampler> MakeSampler(const std::string &name,
const ParamSet ¶mSet,
const Film *film) {
Sampler *sampler = nullptr;
if (name == "lowdiscrepancy" || name == "02sequence")
sampler = CreateZeroTwoSequenceSampler(paramSet);
else if (name == "maxmindist")
sampler = CreateMaxMinDistSampler(paramSet);
else if (name == "halton")
sampler = CreateHaltonSampler(paramSet, film->GetSampleBounds());
else if (name == "sobol")
sampler = CreateSobolSampler(paramSet, film->GetSampleBounds());
else if (name == "random")
sampler = CreateRandomSampler(paramSet);
else if (name == "stratified")
sampler = CreateStratifiedSampler(paramSet);
else
Warning("Sampler \"%s\" unknown.", name.c_str());
paramSet.ReportUnused();
return std::shared_ptr<Sampler>(sampler);
}
void Context::Shape(const string &n, const ParamSet ¶ms) {
VERIFY_WORLD("Shape");
renderFarm->send("luxShape", n, params);
const u_int sIdx = shapeNo++;
u_int nItems;
const string *sn = params.FindString("name", &nItems);
if (!sn || *sn == "") {
// generate name based on shape type and declaration index
std::stringstream ss("");
ss << "#" << sIdx << " (" << n << ")";
const string sname = ss.str();
const_cast<ParamSet &>(params).AddString("name", &sname);
} else if (sn) {
const string sname = "'" + *sn + "'";
const_cast<ParamSet &>(params).AddString("name", &sname);
}
boost::shared_ptr<lux::Shape> sh(MakeShape(n, curTransform.StaticTransform(),
graphicsState->reverseOrientation, params));
if (!sh)
return;
params.ReportUnused();
// Lotus - Set the material
if (graphicsState->material)
sh->SetMaterial(graphicsState->material);
else {
boost::shared_ptr<lux::Material> m(MakeMaterial("matte",
curTransform.StaticTransform(), ParamSet()));
sh->SetMaterial(m);
}
sh->SetExterior(graphicsState->exterior);
sh->SetInterior(graphicsState->interior);
// Create primitive and add to scene or current instance
if (renderOptions->currentInstanceRefined) {
if (graphicsState->areaLight != "") {
LOG(LUX_WARNING,LUX_UNIMPLEMENT)<<"Area lights not supported with object instancing";
/* // Lotus - add a decorator to set the arealight field
boost::shared_ptr<Primitive> prim(
new AreaLightPrimitive(pr, area));
if (!prim->CanIntersect())
prim->Refine(*(renderOptions->currentInstance),
PrimitiveRefinementHints(false), prim);
else
renderOptions->currentInstance->push_back(prim);
// Add area light for primitive to light vector
renderOptions->currentLightInstance->push_back(area);*/
} /*else*/ {
renderOptions->currentInstanceSource->push_back(sh);
if (!sh->CanIntersect())
sh->Refine(*(renderOptions->currentInstanceRefined),
PrimitiveRefinementHints(false), sh);
else
renderOptions->currentInstanceRefined->push_back(sh);
}
} else if (graphicsState->areaLight != "") {
u_int lg = GetLightGroup();
AreaLight *area = MakeAreaLight(graphicsState->areaLight,
curTransform.StaticTransform(),
graphicsState->areaLightParams, sh);
if (area) {
area->group = lg;
area->SetVolume(graphicsState->exterior); //unused
}
// Lotus - add a decorator to set the arealight field
boost::shared_ptr<Primitive> pr(sh);
boost::shared_ptr<Primitive> prim(new AreaLightPrimitive(pr,
area));
renderOptions->primitives.push_back(prim);
// Add area light for primitive to light vector
renderOptions->lights.push_back(area);
} else
renderOptions->primitives.push_back(sh);
}