<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED NOTABUG - Wrong values returned by GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT & GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT randomly breaks stuff" href="https://bugs.freedesktop.org/show_bug.cgi?id=97305#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED NOTABUG - Wrong values returned by GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT & GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT randomly breaks stuff" href="https://bugs.freedesktop.org/show_bug.cgi?id=97305">bug 97305</a> from <a class="email" href="mailto:dark_sylinc@yahoo.com.ar" title="Matias N. Goldberg <dark_sylinc@yahoo.com.ar>"> Matias N. Goldberg</a> <pre>I'm back. I only tested texture and uniform buffers, not SSBOs. Results: * Setting UBOs to 4 byte alignments didn't seem to matter in any way. Performance didn't seem to be affected either. Nonetheless given that AMD always sets it to 256; this is what I'd recommend (i.e. there could be undocumented hw errors for edge cases?) * Setting TBOs to non-16 byte alignments breaks in a specific pattern (i.e. 4 byte alignments produce certain glitches, 8 byte alignments produce a different set of glitches, 12 byte alignments a different set, etc). Setting TBOs to 16 byte alignments fixes everything. I benchmarked 256-byte alignments vs 16-byte alignments-non-256-byte and couldn't see any performance difference (the sample kept around 46.50-47.00ms all the time).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>