set_falloff_curve()

void MayaFlux::Nexus::Presence::set_falloff_curve

(

FalloffCurve

curve

)

Set the falloff curve to a named built-in.

Definition at line 39 of file Presence.cpp.

{
    m_falloff_curve = curve;
    switch (curve) {
    case FalloffCurve::Linear:
        m_falloff = [](float t) { return 1.0F - std::clamp(t, 0.0F, 1.0F); };
        break;
    case FalloffCurve::Cosine:
        m_falloff = [](float t) { return 0.5F * (1.0F + std::cos(std::clamp(t, 0.0F, 1.0F) * glm::pi<float>())); };
        break;
    case FalloffCurve::Exponential:
        m_falloff = [](float t) { return std::exp(-4.0F * std::clamp(t, 0.0F, 1.0F)); };
        break;
    case FalloffCurve::InverseSquare:
        m_falloff = [](float t) { const float c = std::clamp(t, 0.0F, 1.0F); return 1.0F / (1.0F + 16.0F * c * c); };
        break;
    }
}

References Cosine, Exponential, InverseSquare, Linear, m_falloff, and m_falloff_curve.