<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [IVB/HSW] ogl-samples: gl-320-fbo-layered render error with “grid”" href="https://bugs.freedesktop.org/show_bug.cgi?id=76397#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [IVB/HSW] ogl-samples: gl-320-fbo-layered render error with “grid”" href="https://bugs.freedesktop.org/show_bug.cgi?id=76397">bug 76397</a> from <a class="email" href="mailto:itoral@igalia.com" title="Iago Toral <itoral@igalia.com>"> Iago Toral</a> <pre>Looking at the code in the test I think the result obtained in Mesa is correct and the reference expected output is actually wrong. When rendering to the main framebuffer, the test first clears it in *white* like this: glBindFramebuffer(GL_FRAMEBUFFER, 0); glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f, 1.0f, 1.0f, 1.0f)[0]); Then renders to it with 4 different viewports with these configurations: Viewport 0: x=2, y=2, w=316, h=236 Viewport 1: x=322, y=1, w=316, h=236 Viewport 2: x=322, y=242, w=316, h=236 Viewport 3: x=2, y=242, w=316, h=236 So obviously, there are gaps that are not being rendered and will show in the color in which the color buffer was cleared (i.e. white). I'll ping the developers of ogl-samples about this.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>