build() [2/5]

std::shared_ptr< Buffers::InstanceNetworkBuffer > MayaFlux::Mint::Impl::build ( const StructureConfig::Instances &  config ) const

inline

Definition at line 214 of file Mint.cpp.

    {
        if (!has_target(config.render)) {
            return nullptr;
        }
 
        auto network = config.network
            ? config.network
            : std::make_shared<Nodes::Network::InstanceNetwork>();
 
        if (!config.transforms.empty()) {
            auto writer = resolve_writer(
                config.prototype_mesh,
                config.prototype_expression,
                config.prototype_writer,
                "Instances prototype");
            if (!writer) {
                return nullptr;
            }
 
            for (size_t index = 0; index < config.transforms.size(); ++index) {
                const uint32_t slot_index = network->add_slot(
                    "instance_" + std::to_string(index), writer);
                network->get_slot(slot_index).transform = config.transforms[index];
            }
        }
 
        if (network->slot_count() == 0) {
            MF_ERROR(Journal::Component::API, Journal::Context::Init,
                "mint: Instances requires an existing populated network or transforms");
            return nullptr;
        }
 
        register_network_if_needed(network);
        auto buffer = std::make_shared<Buffers::InstanceNetworkBuffer>(
            network, config.over_allocate_factor);
        StructureConfig::RenderConfig render = config.render;
        add_all_textures(render, config.textures);
        register_graphics_buffer(buffer);
        buffer->setup_rendering(render);
        return buffer;
    }

References MayaFlux::Journal::API, buffer, index, MayaFlux::Journal::Init, MF_ERROR, network, MayaFlux::StructureConfig::Instances::network, MayaFlux::StructureConfig::Instances::over_allocate_factor, MayaFlux::StructureConfig::Instances::prototype_expression, MayaFlux::StructureConfig::Instances::prototype_mesh, MayaFlux::StructureConfig::Instances::prototype_writer, MayaFlux::register_graphics_buffer(), MayaFlux::StructureConfig::Instances::render, MayaFlux::StructureConfig::Instances::textures, and MayaFlux::StructureConfig::Instances::transforms.

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