Function TriangleLerp

BakingLab/PathTracer.cpp:62–71

// Interpolates triangle vertex values using the barycentric coordinates from a BVH hit result
template<typename T> T TriangleLerp(const EmbreeRay& ray, const BVHData& bvhData, const std::vector<T>& vertexData)
{
    const uint64 triangleIdx = ray.primID;
    const Uint3& triangle = bvhData.Triangles[triangleIdx];
    const T& v0 = vertexData[triangle.x];
    const T& v1 = vertexData[triangle.y];
    const T& v2 = vertexData[triangle.z];

    return BarycentricLerp(v0, v1, v2, ray.u, ray.v);
}

// Returns the direct sun radiance for a direction on the skydome
static Float3 SampleSun(Float3 sampleDir)