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烟花如何能够以平面光栅格式存储这些额外信息。是否有任何开源方法可以以 PNG 格式编写类似的矢量、分层、分页文件,烟花可以读取?
PNG 格式允许辅助数据块存储图像本身之外的元数据。我不相信任何人实际上已经制定了 Adobe 存储该数据的格式。