Unverified50% confidenceFactExact time
WebGL 纹理更新中，将像素数据从 CPU 内存上传至 GPU 显存存在开销，本质是 PCIe 总线带宽远低于 GPU 内部显存带宽（通常相差一个数量级）
1
Sources
50%
Confidence
Long-term
Relevance
7/7/2026
First Seen
Sources
在3D地球仪上实时协作作画：Paint the Earth开源实验解析
hackernewshackernews7/6/2026
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