小编Kaz*_*uya的帖子

下面的代码向您展示如何将顶点缓冲区数据从登台缓冲区传输到本地内存缓冲区：

bool Vulkan::UpdateVertexBuffer(std::vector<VERTEX>& data, VULKAN_BUFFER& vertex_buffer)
{
    std::memcpy(this->staging_buffer.pointer, &data[0], vertex_buffer.size);

    size_t flush_size = static_cast<size_t>(vertex_buffer.size);
    unsigned int multiple = static_cast<unsigned int>(flush_size / this->physical_device.properties.limits.nonCoherentAtomSize);
    flush_size = this->physical_device.properties.limits.nonCoherentAtomSize * ((uint64_t)multiple + 1);

    VkMappedMemoryRange flush_range = {};
    flush_range.sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
    flush_range.pNext = nullptr;
    flush_range.memory = this->staging_buffer.memory;
    flush_range.offset = 0;
    flush_range.size = flush_size;
    vkFlushMappedMemoryRanges(this->device, 1, &flush_range);

    VkResult result = vkWaitForFences(this->device, 1, &this->transfer.fence, VK_FALSE, 1000000000);
    if(result != VK_SUCCESS) {
        #if defined(_DEBUG)
        std::cout << "UpdateVertexBuffer => vkWaitForFences : Timeout" << std::endl;
        #endif
        return false;
    }
    vkResetFences(this->device, 1, …