The update loop zips all three and asserts up front that no list is left
without a pipeline, instead of indexing the pipelines to get that guarantee.
The comment on the data layout claimed a `None` minimum takes its value from
the first pipeline built against the layout. That is not documented and does
not reproduce -- one shared layout with `None` renders the tabs example
correctly today. What is documented is that a stated size is checked when the
bind group and pipeline are created, and `None` is checked on every draw, so
that is what the comment says now.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
irisandClaude Opus 5
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