https://bugs.freedesktop.org/show_bug.cgi?id=91461
--- Comment #1 from Daniel Scharrer daniel@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.