Method bounce

core/src/core/reflection_simulator.cpp:524–551

}

void ReflectionSimulator::bounce(const IScene& scene,
                                 int bounce,
                                 const Hit& hit,
                                 const Vector3f& hitPoint,
                                 int threadId,
                                 Ray& ray,
                                 float* accumEnergy,
                                 float& accumDistance)
{
    for (auto j = 0; j < Bands::kNumBands; ++j)
    {
        accumEnergy[j] *= (1.0f - hit.material->absorption[j]);
    }

    accumDistance += hit.distance;

    ray.origin = hitPoint;

    if (mThreadState[threadId].rng.uniformRandomNormalized() < hit.material->scattering)
    {
        auto diffuseSampleIndex = mThreadState[threadId].rng.uniformRandom() % mNumDiffuseSamples;
        ray.direction = Sampling::transformHemisphereSample(mDiffuseSamples[diffuseSampleIndex], hit.normal);
    }
    else
    {
        ray.direction = Vector3f::reflect(ray.direction, hit.normal);
    }
}


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