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Force an openGL application to use 3D antialiasing

asked 2016-04-06 15:57:52 -0500

alfC gravatar image

updated 2016-08-29 23:23:12 -0500

I have several applications that render 3D objects, such as glxgears, mathematica and acroread 9.4. I cannot no manage to make these applications to render 3D objects nicely.

Here it is an example (see the pixelated display)


while it should look like this:


Same thing happens with glxgears.

Is there an environment variable that can force openGL to render the 3D objects better?

I tried things like

$ __GL_SYNC_TO_VBLANK=1 __GL_FSAA_MODE=9 __GL_LOG_MAX_ANISO=3 acroread figure.pdf

But they seem to work only with nVidia video cards.

I have Fedora 23 with Intel® Core™ i7-3612QM CPU @ 2.10GHz × 8 and Intel® Ivybridge Mobile

The PDF can be downloaded from here (the image can be seen only with Acrobat, not others PDF viewers).

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answered 2016-04-06 18:01:11 -0500

I am sorry to be a bearer of bad news but I don't think your graphics card is that good. I am almost a 100% certain this is the reason for the rendering issues, after all it is some sort of integrated/shared memory graphics card. You will achieve the desired results with a recent model NVIDIA or AMD graphics card.

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The irony is that the two screenshots are taken from the same computer. The first is Acrobat Reader 9.4 for Linux running on Fedora (according to the Acrobat settings rendered with "openGL (Mesa)"). The second is Acrobat Reader 9.4 for Windows running on wine/Fedora (according to the Acrobat settings rendered with "DirectX9".) That makes me think that it is not a problem of the hardware.

alfC gravatar imagealfC ( 2016-04-06 18:29:22 -0500 )edit

answered 2016-08-29 23:52:29 -0500

sergiomb gravatar image

updated 2016-08-30 00:11:58 -0500

you may try driconf , but the problem should be in acroread , why you not try okular and evince

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Asked: 2016-04-06 15:57:52 -0500

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Last updated: Aug 30 '16