https://bugs.freedesktop.org/show_bug.cgi?id=68296
--- Comment #12 from U. Artie Eoff <ullysses.a.e...@intel.com> --- Created attachment 103044 --> https://bugs.freedesktop.org/attachment.cgi?id=103044&action=edit clear color does not fill new viewport size The problem is that the GL color buffer does not fill the GL viewport after it's been resized. That is, after calling glViewport(...) the background color goes black, and in the more extreme case the original clear color remains in the portion of the previous viewport size giving the illusion of being clipped (as seen in my attached image). If you modify the glClearColor(...) in the sample test code to be something other than black, then the problem becomes obvious. If then you add a glClear(GL_COLOR_BUFFER_BIT) after the call to glViewport(...), then the problem goes away. The question is, is it the responsibility of the GL client program to make a call to glClear after executing glViewport, or is Mesa supposed to handle this for you? The EFL developers indicate that this is only a problem on Intel platforms. -- You are receiving this mail because: You are the assignee for the bug.
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