...This concerned me, in my project here, I sometimes use cache=TRUE in the package just for efficiency issues, which means my demo may not be possible to run in your laptop or other computers with integrated graphic card.<div>
<br></div><div>It looks like if I want to satisfy all the users, I always have to set cache=FALSE, is it possible to use cache and satisfy all the users with or without discrete graphics?<br><br><div class="gmail_quote">
On Sat, Aug 7, 2010 at 3:39 PM, Yihui Xie <span dir="ltr"><<a href="mailto:xie@yihui.name">xie@yihui.name</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Michael is correct: T510 uses the Intel integrated graphics. I just<br>
turned off caching (with opengl = TRUE) and now my qtpaint functions<br>
are working.<br>
<div class="im"><br>
Regards,<br>
Yihui<br>
--<br>
Yihui Xie <<a href="mailto:xieyihui@gmail.com">xieyihui@gmail.com</a>><br>
Phone: 515-294-6609 Web: <a href="http://yihui.name" target="_blank">http://yihui.name</a><br>
Department of Statistics, Iowa State University<br>
3211 Snedecor Hall, Ames, IA<br>
<br>
<br>
<br>
</div><div class="im">On Sat, Aug 7, 2010 at 4:33 PM, Michael Lawrence<br>
<<a href="mailto:lawrence.michael@gene.com">lawrence.michael@gene.com</a>> wrote:<br>
</div><div><div></div><div class="h5">> My guess is that Yi Hui has the Intel integrated graphics in the t510<br>
> instead of the GeForce option. His hardware/driver is likely incapable of<br>
> multi-sampled (antialiased) rendering to framebuffer objects, which are used<br>
> for caching. So besides turning off OpenGL, you could turn off caching.<br>
><br>
> The obvious real solution would be to disable multisampling if unsupported<br>
> by the hardware. I haven't figured out a way to detect this from Qt (made<br>
> difficult by not having this problem on my computer). I could write a bunch<br>
> of OpenGL code, but that is a pain.<br>
><br>
> I might just add a logical "multisampling" argument to qlayer() for the user<br>
> to specify the correct behavior.<br>
><br>
> Michael<br>
><br>
> On Fri, Aug 6, 2010 at 10:57 PM, Tengfei Yin <<a href="mailto:yintengfei@gmail.com">yintengfei@gmail.com</a>> wrote:<br>
>><br>
>> ...Yes, maybe you are right, your t510 has a i5 cpu...it's new and<br>
>> awesome!<br>
>> you may check with opengl community, since we have the same package and<br>
>> library, the only difference is hardware of your laptop is better than my<br>
>> t61...<br>
>> Have a nice weekend!!<br>
>> Best<br>
>> Tengfei<br>
>><br>
</div></div></blockquote></div><br><br clear="all"><br>-- <br>Tengfei Yin<br>MCDB PhD student <br>1620 Howe Hall, 2274,<br>Iowa State University<br>Ames, IA,50011-2274<br>Homepage: <a href="http://www.tengfei.name">www.tengfei.name</a><br>
<br>
</div>