MATLAB with OpenGL through terminal?

Question

Aaron Anderson 2017-7-13

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/348637-matlab-with-opengl-through-terminal

回答： Sergio 2020-12-22

I'm curious if it's possible to get MATLAB running with any form of OpenGL from the terminal. The issue is I am currently running MATLAB through a ssh client and incapable of running the normal desktop mode. I received a warning when creating some figures that OpenGL is not available when running through the terminal and there were lines running all over the figure's graphics objects.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Nagarjuna Manchineni 2017-7-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/348637-matlab-with-opengl-through-terminal#answer_274448

When you are running MATLAB from the command line (any SSH client), you can use 'nodesktop' mode to run MATLAB command line mode. Use the following command to run MATLAB from terminal:

>> matlab -nodesktop -nosplash

There is no need to alter 'opengl' behavior until you are trying to launch some figures. You can disable launching figure windows by specifying the '' startup option. For example,

>> matlab -nodesktop -nosplash -noFigureWindows

Also, if you want to alter opengl behavior or want to execute any script while launching MATLAB, you can use the '-r' flag and execute the script. For example,

>> matlab -r "opengl software"

Refer to the following documentation link for more startup options:

https://www.mathworks.com/help/matlab/ref/matlablinux.html?searchHighlight=nodesktop&s_tid=doc_srchtitle

2 个评论
显示无隐藏无

Aaron Anderson 2017-7-20

A couple of issues that I run into:

Using

matlab -r "opengl software"

doesn't appear to work, as when I then type openGL info, it is missing the mesa software tag

                          Version: ''
                           Vendor: ''
                         Renderer: 'None'
            RendererDriverVersion: ''
        RendererDriverReleaseDate: ''
                   MaxTextureSize: 0
                           Visual: ''
                         Software: 1
             HardwareSupportLevel: 'none'
        SupportsGraphicsSmoothing: 0
    SupportsDepthPeelTransparency: 0
       SupportsAlignVertexCenters: 0
                       Extensions: {}
               MaxFrameBufferSize: 0

opengl hardware doesn't work because it is apparently not supported at runtime on unix.

What I want to do is to make figures and use export_fig to create some PDFS. The issue is that without openGL I cannot properly render the images so they come out with lines running all over them.

Antal Horváth 2020-11-11

Same problem here. I want to produce images by running a script via an ssh terminal. In the script the following lines are called:

hf = figure('visible', 'off');
clf(hf);
ax = axes('Parent', hf);
imshow(I, [], 'parent', ax)
hold(ax, 'on')
contour(structure, [.5 .5], 'b-', 'linewidth', linewidth, 'parent', ax);
exportgraphics(ax, [path '.png'], 'Resolution', 600);

This results in the warning:

Warning: MATLAB has disabled some advanced graphics rendering features by switching to software OpenGL. For more information, click <a href="matlab:opengl('problems')">here</a>.

and produces images with huge black padding.

Running this script locally in the MATLAB IDE, however, does not have this issue.

请先登录，再进行评论。

Answer 2

Sergio 2020-12-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/348637-matlab-with-opengl-through-terminal#answer_582342

I have the same problem -- now working from home makes a significant problem. Mathworks support washes their hands with the usual "not supported" feature to run matlab over ssh. What?

Paraview works with server-side rendering so I can use the GPUs on my server, but Matlab does not...