[Bug 91461] gl_TessLevel* writes have no effect for all but the last TCS invocation

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Jul 25 07:34:24 PDT 2015


https://bugs.freedesktop.org/show_bug.cgi?id=91461

--- Comment #1 from Daniel Scharrer <daniel at constexpr.org> ---
Created attachment 117373
  --> https://bugs.freedesktop.org/attachment.cgi?id=117373&action=edit
Tessellation test case

I have attached a test case for this. It can be compiled and run using:
 $ sh tessellation.cpp

Use the arrow keys to change which TCS invocation writes to gl_TessLevel* (or
use space/enter to toggle between the first and the last).

It should display a yellow grid no matter what TCS invocation is selected but
instead displays a green grid for invocation 3 and nothing for all other
invocations.

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