[Mesa-dev] [Bug 90130] gl_PrimitiveId seems to reset at 340

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Apr 21 21:05:59 PDT 2015


https://bugs.freedesktop.org/show_bug.cgi?id=90130

--- Comment #5 from Roland Scheidegger <sroland at vmware.com> ---
Or even better, a piglit test :-).

I suspect there's an issue with the prim assembler in draw.
Since from a quick look it seems like the prim assembler would always reset the
prim_id it's going to inject whenever it's run, and that's going to happen per
chunk (as we don't process all vertices in a draw call at once if there's too
many). Probably would need to fix that somehow so it's only reset per instance.
We possibly (?) handle this correctly if there's a gs.

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