def get_bsdf(self, dgGeom: DifferentialGeometry, dgShading: DifferentialGeometry) -> [BSDF]:
dgs = DifferentialGeometry()
if self.bumpMap is None:
dgs = dgShading
else:
# todo Bump(bumpMap, dgGeom, dgShading, &dgs);
pass
bsdf = BSDF(dgs, dgGeom.normal)
r = self.Kr.get_evaluate(dgs).get_clamp()
if not r.get_is_black():
bsdf.add(SpecularReflection(r, FresnelNoOp()))
return bsdf
def get_bsdf(self, dgGeom: DifferentialGeometry, dgShading: DifferentialGeometry)->[BSDF]:
dgs = DifferentialGeometry()
if self.bumpMap is None:
dgs = dgShading
else:
#todo Bump(bumpMap, dgGeom, dgShading, &dgs);
pass
bsdf = BSDF(dgs, dgGeom.normal)
r = self.Kd.get_evaluate(dgs).get_clamp()
sig = get_clamp(self.sigma.get_evaluate(dgs), 0.0, 90.0)
if r.get_is_black():
bsdf.add(OrenNayar(r,sig))
else:
bsdf.add(Lambertian(r))
return bsdf
def get_bsdf(self, dgGeom: DifferentialGeometry, dgShading: DifferentialGeometry)->[BSDF]:
dgs = DifferentialGeometry()
if self.bumpMap is None:
dgs = dgShading
else:
#todo Bump(bumpMap, dgGeom, dgShading, &dgs);
pass
bsdf = BSDF(dgs, dgGeom.normal)
kd = self.Kd.get_evaluate(dgs).get_clamp()
if not kd.get_is_black():
diff = Lambertian(kd)
bsdf.add(diff)
ks = self.Ks.get_evaluate(dgs).get_clamp()
if not ks.get_is_black():
fresnel = FresnelDielectric(1.5, 1.0)
rough = self.roughness.get_evaluate(dgs)
spec = Microfacet(ks, fresnel, Blinn(1.0 / rough))
bsdf.add(spec)
return bsdf
