Method ProcessMaterialNetwork

Hydrogent/src/HnMaterial.cpp:204–240

}

void HnMaterial::ProcessMaterialNetwork()
{
    ReadFallbackValue(m_Network, HnTokens->diffuseColor, m_MaterialData.Attribs.BaseColorFactor);
    ReadFallbackValue(m_Network, HnTokens->metallic, m_MaterialData.Attribs.MetallicFactor);
    ReadFallbackValue(m_Network, HnTokens->roughness, m_MaterialData.Attribs.RoughnessFactor);
    ReadFallbackValue(m_Network, HnTokens->occlusion, m_MaterialData.Attribs.OcclusionFactor);
    if (!ReadFallbackValue(m_Network, HnTokens->emissiveColor, m_MaterialData.Attribs.EmissiveFactor))
    {
        m_MaterialData.Attribs.EmissiveFactor = m_Textures.find(HnTokens->emissiveColor) != m_Textures.end() ? float4{1} : float4{0};
    }

    ApplyTextureInputScale(m_Network, HnTokens->diffuseColor, m_MaterialData.Attribs.BaseColorFactor);
    ApplyTextureInputScale(m_Network, HnTokens->metallic, m_MaterialData.Attribs.MetallicFactor);
    ApplyTextureInputScale(m_Network, HnTokens->roughness, m_MaterialData.Attribs.RoughnessFactor);
    ApplyTextureInputScale(m_Network, HnTokens->occlusion, m_MaterialData.Attribs.OcclusionFactor);
    ApplyTextureInputScale(m_Network, HnTokens->emissiveColor, m_MaterialData.Attribs.EmissiveFactor);

    if (const HnMaterialParameter* Param = m_Network.GetParameter(HnMaterialParameter::ParamType::Fallback, HnTokens->clearcoat))
    {
        m_MaterialData.Attribs.ClearcoatFactor = Param->FallbackValue.Get<float>();
        if (m_MaterialData.Attribs.ClearcoatFactor > 0)
        {
            m_MaterialData.HasClearcoat = true;

            if (const HnMaterialParameter* RoughnessParam = m_Network.GetParameter(HnMaterialParameter::ParamType::Fallback, HnTokens->clearcoatRoughness))
            {
                m_MaterialData.Attribs.ClearcoatRoughnessFactor = RoughnessParam->FallbackValue.Get<float>();
            }
        }
    }


    m_MaterialData.Attribs.AlphaMode = MaterialTagToPbrAlphaMode(m_Network.GetTag());

    m_MaterialData.Attribs.AlphaCutoff       = m_Network.GetOpacityThreshold();
    m_MaterialData.Attribs.BaseColorFactor.a = m_Network.GetOpacity();
}

void HnMaterial::InitTextureAttribs(HnTextureRegistry& TexRegistry, const USD_Renderer& UsdRenderer, const TexNameToCoordSetMapType& TexNameToCoordSetMap)
{