Method lerp

ogsr_engine/xr_3da/Environment.cpp:446–478

}

void CEnvironment::lerp(float& current_weight)
{
    if (b_wfx && (wfx_time <= 0.f))
        StopWeatherFX();

    SelectEnvs(fGameTime);
    VERIFY(Current[0] && Current[1]);

    current_weight = TimeWeight(fGameTime, Current[0]->exec_time, Current[1]->exec_time);

    // modifiers
    CEnvModifier EM;
    EM.far_plane = 0;
    EM.fog_color.set(0, 0, 0);
    EM.fog_density = 0;
    EM.ambient.set(0, 0, 0);
    EM.sky_color.set(0, 0, 0);
    EM.hemi_color.set(0, 0, 0);
    EM.use_flags.zero();

    Fvector view = Device.vCameraPosition;
    float mpower = 0;
    for (auto& Modifier : Modifiers)
        mpower += EM.sum(Modifier, view);

    extern bool editor_weather_no_mixer;

    if (editor_weather_no_mixer)
        current_weight = 0;

    // final lerp
    CurrentEnv->lerp(this, *Current[0], *Current[1], current_weight, EM, mpower);
}

void CEnvironment::OnFrame()
{