on_descriptors_created()

void MayaFlux::Buffers::VertexFieldProcessor::on_descriptors_created ( )

overrideprotectedvirtual

Write the cluster_id descriptor when the operator needs one.

A no-op call when m_needs_cluster_id is false. hash_cluster_id's underlying allocation is fixed-size for the buffer's whole lifetime (NetworkGeometryBuffer::declare_state never resizes a declared state field the way the primary vertex buffer resizes), so a single write here each time descriptor sets are (re)created is sufficient; unlike NetworkStateFieldProcessor's own fields, nothing here needs rewriting every cycle for resize-safety.

Reimplemented from MayaFlux::Buffers::ShaderProcessor.

Definition at line 247 of file VertexFieldProcessor.cpp.

{
    if (!m_needs_cluster_id || !m_network_buffer || m_descriptor_set_ids.empty()) {
        return;
    }
 
    auto& foundry = Portal::Graphics::get_shader_foundry();
    const auto handle = m_network_buffer->read_state_handle("hash_cluster_id");
    const auto bytes = m_network_buffer->get_state_bytes("hash_cluster_id");
 
    foundry.update_descriptor_buffer(
        m_descriptor_set_ids[0], m_operator->get_vertex_binding() + 1,
        vk::DescriptorType::eStorageBuffer, handle, 0, bytes);
}

References MayaFlux::Portal::Graphics::get_shader_foundry(), MayaFlux::Buffers::ShaderProcessor::m_descriptor_set_ids, m_needs_cluster_id, m_network_buffer, and m_operator.

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