extract_network_gpu_data()

MAYAFLUX_API NetworkGpuData MayaFlux::Buffers::extract_network_gpu_data	(	const std::shared_ptr< Nodes::Network::NodeNetwork > &	network,
		std::string_view	name
	)

Extract GPU geometry data from a NodeNetwork via its GraphicsOperator.

vertex_data/vertex_count are empty when the network has no operator, the operator is not a GraphicsOperator, or it has no vertex data this frame (e.g. an AssemblyOperator with zero items so far). layout is still populated whenever the operator can report one regardless of count, so a render pipeline can be built from it before any data exists – an operator's attribute shape is not data-dependent even when its current vertex count is zero. Logs at TRACE level for empty/missing data, WARN for operator type mismatch.

Parameters

network	Network to extract from
name	Logical name used in log messages

Returns

Populated NetworkGpuData; vertex_data/vertex_count empty/zero if there is nothing to upload this frame, layout set regardless when the operator can provide one

Definition at line 323 of file BufferUtils.cpp.

{
    auto* op = network->get_operator();
    if (!op) {
        MF_RT_TRACE(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "Network '{}' has no operator", name);
        return {};
    }
 
    auto* graphics_op = dynamic_cast<Nodes::Network::GraphicsOperator*>(op);
    if (!graphics_op) {
        MF_RT_WARN(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "Network '{}' operator '{}' is not a GraphicsOperator",
            name, op->get_type_name());
        return {};
    }
 
    auto vertex_data = graphics_op->get_vertex_data();
    size_t vertex_count = graphics_op->get_vertex_count();
 
    if (vertex_data.empty() || vertex_count == 0) {
        MF_RT_TRACE(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "Network '{}' has no vertex data this frame", name);
        return { .layout = graphics_op->get_vertex_layout() };
    }
 
    return {
        .vertex_data = vertex_data,
        .vertex_count = vertex_count,
        .layout = graphics_op->get_vertex_layout()
    };
}

References MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, MF_RT_TRACE, MF_RT_WARN, name, and network.

Referenced by MayaFlux::Buffers::NetworkGeometryProcessor::processing_function(), and MayaFlux::Buffers::DescriptorBindingsProcessor::update_from_network().

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