<div dir="ltr">Utkarsh, <div><br></div><div>This is great news! few inline comments:<br><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Dec 17, 2015 at 1:05 PM, Utkarsh Ayachit <span dir="ltr"><<a href="mailto:utkarsh.ayachit@kitware.com" target="_blank">utkarsh.ayachit@kitware.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Frank,<br>
<br>
First of all, thanks for all your exhausting testing, it's greatly appreciated!<br>
<br>
* OSMesa and MESA_GL_VERSION_OVERRIDE<br>
<br>
Communicating with the Mesa team, we learnt that<br>
MESA_GL_VERSION_OVERRIDE is a bad idea since it doesnt' really create<br>
the specified OpenGL context. Thus if anything tries to use features<br>
from the specific OpenGL version, the rendering would crash and burn.<br>
Working with Brian Paul from the Mesa team, Ken recently pushed a fix<br>
to VTK (after the RC2) that uses new OSMesa API to create the correct<br>
OpenGL context. This new OSMesa API will appear in Mesa 11.2, however.<br>
Earlier version can be patched using the "alpha" patch that Brian<br>
provided us (attached).<br></blockquote><div><br></div><div>Does this patch cleanly applies to all previous version of Mesa or only 11.1 release? I am assuming that this patch existing in their current master? </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
* Classic v/s llvm<br>
<br>
Your observation is indeed correct. llvmpipe is the way to go for<br>
software rendering. On my builds, classic mesa was painstakingly slow<br>
for rendering even small geometries.<br>
<br>
* Issues with LIC<br>
<br>
Another correct observation. There are a few regressions in the new<br>
implementation for SurfaceLIC. Realistically, we may not be able to<br>
address these before the 5.0 release. If you're using SurfaceLIC<br>
heavily, I'd suggest building ParaView 5.0 with the older OpenGL<br>
backend (or sticking with 4.4) for the interim.<br>
<br>
* OSMesa + SWR<br>
<br>
While currently I am not sure openswr+osmesa builds are possible, I<br>
wouldn't be surprised if that on the roadmap. I am going to try to<br>
contact the OpenSWR team to see if they have any thoughts on that.<br>
<span class="HOEnZb"><font color="#888888"><br>
Utkarsh<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><font face="trebuchet ms, sans-serif"><i>| Aashish Chaudhary <br>| Technical Leader <br>| Kitware Inc. <br></i></font><div><i><font face="trebuchet ms, sans-serif">| </font><a href="http://www.kitware.com/company/team/chaudhary.html" target="_blank">http://www.kitware.com/company/team/chaudhary.html</a></i></div></div></div>
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