Method Commit

Hydrogent/src/HnShadowMapManager.cpp:66–110

}

void HnShadowMapManager::Commit(IRenderDevice* pDevice, IDeviceContext* pCtx)
{
    m_ShadowMapAtlas->Update(pDevice, pCtx);

    const Uint32 AtlasVersion = m_ShadowMapAtlas->GetVersion();
    if (AtlasVersion == m_AtlasVersion)
        return;

    m_DSVs.clear();

    ITexture* pShadowTexture = m_ShadowMapAtlas->GetTexture();
    if (pShadowTexture == nullptr)
    {
        UNEXPECTED("Shadow map atlas texture is null");
        return;
    }

    const TextureDesc& SMDesc = pShadowTexture->GetDesc();
    VERIFY_EXPR(m_DSVs.empty() || m_DSVs.size() == SMDesc.ArraySize);

    if (m_DSVs.empty())
    {
        m_DSVs.resize(SMDesc.ArraySize);
        for (Uint32 Slice = 0; Slice < SMDesc.ArraySize; ++Slice)
        {
            std::string Name = std::string{"Shadow map DSV for slice "} + std::to_string(Slice);

            TextureViewDesc DSVDesc;
            DSVDesc.Name            = Name.c_str();
            DSVDesc.ViewType        = TEXTURE_VIEW_DEPTH_STENCIL;
            DSVDesc.Format          = SMDesc.Format;
            DSVDesc.TextureDim      = SMDesc.Type;
            DSVDesc.NumArraySlices  = 1;
            DSVDesc.FirstArraySlice = Slice;
            DSVDesc.MostDetailedMip = 0;
            DSVDesc.NumMipLevels    = 1;
            RefCntAutoPtr<ITextureView> pDSV;
            pShadowTexture->CreateView(DSVDesc, &pDSV);
            VERIFY_EXPR(pDSV);
            m_DSVs[Slice] = std::move(pDSV);
        }
    }

    m_AtlasVersion = AtlasVersion;
}

const TextureDesc& HnShadowMapManager::GetAtlasDesc() const
{