本文整理汇总了C++中Primitive::intersect方法的典型用法代码示例。如果您正苦于以下问题：C++ Primitive::intersect方法的具体用法？C++ Primitive::intersect怎么用？C++ Primitive::intersect使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Primitive的用法示例。
在下文中一共展示了Primitive::intersect方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: attenuatedEmission
Vec3f TraceBase::attenuatedEmission(PathSampleGenerator &sampler,
const Primitive &light,
const Medium *medium,
float expectedDist,
IntersectionTemporary &data,
IntersectionInfo &info,
int bounce,
bool startsOnSurface,
Ray &ray,
Vec3f *transmittance)
{
CONSTEXPR float fudgeFactor = 1.0f + 1e-3f;
if (light.isDirac()) {
ray.setFarT(expectedDist);
} else {
if (!light.intersect(ray, data) || ray.farT()*fudgeFactor < expectedDist)
return Vec3f(0.0f);
}
info.p = ray.pos() + ray.dir()*ray.farT();
info.w = ray.dir();
light.intersectionInfo(data, info);
Vec3f shadow = generalizedShadowRay(sampler, ray, medium, &light, startsOnSurface, true, bounce);
if (transmittance)
*transmittance = shadow;
if (shadow == 0.0f)
return Vec3f(0.0f);
return shadow*light.evalDirect(data, info);
}