interesting functions

Buffer RayTracing::createScratchBuffer(vk::AccelerationStructureKHR& accelerationStructure) {
    vk::AccelerationStructureMemoryRequirementsInfoKHR memoryInfo;
    memoryInfo.type = vk::AccelerationStructureMemoryRequirementsTypeKHR::eBuildScratch;
    memoryInfo.buildType = vk::AccelerationStructureBuildTypeKHR::eDevice;
    memoryInfo.accelerationStructure = accelerationStructure;

    vk::MemoryRequirements memoryRequirements =
        m_context->m_logicalDevice->getAccelerationStructureMemoryRequirementsKHR(memoryInfo).memoryRequirements;

    return Buffer(
        *m_context->m_logicalDevice,
        memoryRequirements.size,
        vk::BufferUsageFlagBits::eRayTracingKHR
        | vk::BufferUsageFlagBits::eShaderDeviceAddress,
        vk::MemoryPropertyFlagBits::eDeviceLocal,
        vk::MemoryAllocateFlagBits::eDeviceAddress,
        memoryRequirements);
}

and

void CmdBufferAllocator::submitBuffer(vk::CommandBuffer& cmdBuffer, vk::Queue& queue, bool wait) {
    vk::SubmitInfo submitInfo;
    submitInfo.commandBufferCount = 1;
    submitInfo.pCommandBuffers = &cmdBuffer;

    queue.submit(submitInfo, nullptr);

    if (wait) {
        m_context.lock()->m_logicalDevice->waitIdle();
    }
}