问光线跟踪器阴影底部较浅的阴影和奇怪的阴影形状

EN

bool shadowed = false;
Color finalColor = closestObjectColor.Scalar(AMBIENTLIGHT); // Add ambient light to the calculation
for(const auto &lightSource : lightSources)
{
    Vector lightDir = (lightSource->position - intersectionRayPos).Normalize(); // Calculate the directional vector towards the lightSource
    FPType cosineAngle = closestObjectNormal.Dot(lightDir);
    finalColor = finalColor.Scalar(cosineAngle);

    if(cosineAngle > 0)
    {
        Ray shadowRay(intersectionRayPos, (lightSource->position - intersectionRayPos).Normalize()); // Cast a ray from the first intersection to the light

        std::vector<FPType> secondaryIntersections;
        for(const auto &sceneObject : sceneObjects)
        {
            secondaryIntersections.push_back(sceneObject->GetIntersection(shadowRay));
        }

        Vector distanceToLight = lightSource->position + (intersectionRayPos.Negative()).Normalize();
        FPType distanceToLightMagnitude = distanceToLight.Magnitude();

        for(const auto &secondaryIntersection : secondaryIntersections)
        {
            if(secondaryIntersection > TOLERANCE && secondaryIntersection <= distanceToLightMagnitude)
            {
                shadowed = true;
                finalColor = finalColor.Scalar(cosineAngle);
                break;
            }
        }
    }
}
return finalColor.Clip();