on_before_execute()

bool MayaFlux::Buffers::RelaxationEmitProcessor::on_before_execute ( Portal::Graphics::CommandBufferID  cmd_id, const std::shared_ptr< VKBuffer > &  buffer  )

overrideprotectedvirtual

Write the cell_state and vertices descriptor bindings for this cycle's dispatch.

Parameters

cmd_id	Command buffer this cycle's dispatch will be recorded into.
buffer	The attached RelaxationGridBuffer, received as VKBuffer.

Returns

True unconditionally; emission always runs when the buffer is a valid RelaxationGridBuffer.

Reimplemented from MayaFlux::Buffers::ShaderProcessor.

Definition at line 36 of file RelaxationEmitProcessor.cpp.

{
    auto* grid = dynamic_cast<RelaxationGridBuffer*>(buffer.get());
    if (!grid) {
        return false;
    }
 
    if (!are_descriptors_ready()) {
        return true;
    }
 
    auto& foundry = Portal::Graphics::get_shader_foundry();
    auto& resources = grid->get_buffer_resources();
 
    foundry.update_descriptor_buffer(
        m_descriptor_set_ids[0], 0, vk::DescriptorType::eStorageBuffer,
        resources.back_buffers[grid->front_index()].buffer, 0, grid->get_state_bytes());
 
    foundry.update_descriptor_buffer(
        m_descriptor_set_ids[0], 1, vk::DescriptorType::eStorageBuffer,
        buffer->get_buffer(), 0, buffer->get_size_bytes());
 
    return true;
}

References MayaFlux::Buffers::ShaderProcessor::are_descriptors_ready(), MayaFlux::Portal::Graphics::get_shader_foundry(), and MayaFlux::Buffers::ShaderProcessor::m_descriptor_set_ids.

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