[css-transforms-2] Revert to the TR rendering model, where transform-style:preserve-3d establishes the 3d rendering context. #1950 #3750
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…ecko's implementation), and make transform-style:preserve use parent elements instead of containing blocks
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I don't have time to do a full review of this at the moment, but I wonder if we should keep working on a branch for a while to avoid having the ED bounce between two significantly different versions, until we have consensus about reverting to the older version of the spec. I think getting that consensus should also involves some more data-driven estimations of web compatibility. Maybe implementors can gather information about sites using 3D transforms (e.g. from bug reports) so we can see what's important for compat. |
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This changes the 3d rendering model to be closer to the old TR (and blink/gecko's implementation), where transform-style:preserve-3d is what establishes/extends a rendering context, rather than flat.
It also makes transform-style:preserve use parent elements instead of containing blocks (or stacking contexts) to resolve handling of overflow:hidden (which is neither).