Function SolveProjection

BakingLab/SG.cpp:197–210

Do a projection of the colors onto the SG's

// Do a projection of the colors onto the SG's
static void SolveProjection(SGSolveParam& params)
{
    Assert_(params.XSamples != nullptr);
    Assert_(params.YSamples != nullptr);

    // Project color samples onto the SGs
    for(uint32 i = 0; i < params.NumSamples; ++i)
        ProjectOntoSGs(params.XSamples[i], params.YSamples[i], params.OutSGs, params.NumSGs);

    // Weight the samples by the monte carlo factor for uniformly sampling the hemisphere
    float monteCarloFactor = ((2.0f * Pi) / params.NumSamples);
    for(uint32 i = 0; i < params.NumSGs; ++i)
        params.OutSGs[i].Amplitude *= monteCarloFactor;
}

// Solve the set of spherical gaussians based on input set of data
void SolveSGs(SGSolveParam& params)