| commit | 48a63febe3a6d6e4147217d65d813bc62be9c2cd | [log] [tgz] |
|---|---|---|
| author | Jonah Williams <jonahwilliams@google.com> | Wed Oct 30 19:27:28 2024 -0700 |
| committer | GitHub <noreply@github.com> | Thu Oct 31 02:27:28 2024 +0000 |
| tree | fef3a70f20378572d1caf882a1e2032828637ce9 | |
| parent | 621e68c2130f4be5269970fecd8e7963598ddee8 [diff] |
[Impeller] use primitive restart for faster tessellation: write directly into host buffer. (#56173) Using primitive restart we can avoid tracking even odd or inserting degenerate triangles. Instead a special index value `0xFFFF` is used to signal a break. This can be combined with triangle fan on vulkan for a dramatically simpler tessellation. Additionally, switches to a two pass system where we first estimate the storage required by the path so tha the host buffer can be written to directly.
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