// DiffuseAreaLight Method Definitions
DiffuseAreaLight::DiffuseAreaLight(const Transform &LightToWorld,
const MediumInterface &mediumInterface,
const Spectrum &Lemit, int nSamples,
const std::shared_ptr<Shape> &shape)
: AreaLight(LightToWorld, mediumInterface, nSamples),
Lemit(Lemit),
shape(shape),
area(shape->Area()) {}
// DiffuseAreaLight Method Definitions
DiffuseAreaLight::DiffuseAreaLight(const Transform &LightToWorld,
const MediumInterface &mediumInterface,
const Spectrum &Lemit, int nSamples,
const std::shared_ptr<Shape> &shape,
bool twoSided)
: AreaLight(LightToWorld, mediumInterface, nSamples),
Lemit(Lemit),
shape(shape),
twoSided(twoSided),
area(shape->Area()) {
// Warn if light has transformation with non-uniform scale, though not
// for Triangles, since this doesn't matter for them.
if (WorldToLight.HasScale() &&
dynamic_cast<const Triangle *>(shape.get()) == nullptr)
Warning(
"Scaling detected in world to light transformation! "
"The system has numerous assumptions, implicit and explicit, "
"that this transform will have no scale factors in it. "
"Proceed at your own risk; your image may have errors.");
}