Is there any way to change OpenGL properties when rendering a surface?

Question

Cristi 2017-1-26

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回答： Tectract 2022-4-28

Hi,

Is there any way to change OpenGL properties when rendering a surface in Matlab, especially depth peeling? Here an example on how the surface looks like with alpha = 0.5 in Matlab (left) and depth peeling on a different platform (right).

Thanks,

Cristi

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Answer 1

Sally Al Khamees 2017-2-3

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在 MATLAB Online 中打开

If I understand your question correctly, the list of properties returned by opengl are:

 >> opengl('info')
                          Version: 
                           Vendor:
                         Renderer: 
            RendererDriverVersion:
        RendererDriverReleaseDate: 
                   MaxTextureSize: 
                           Visual: 
                         Software: 
             HardwareSupportLevel: 
        SupportsGraphicsSmoothing: 
    *SupportsDepthPeelTransparency*: 
       SupportsAlignVertexCenters: 
                       Extensions: 
               MaxFrameBufferSize:

the SupportsDepthPeelTransparency returns 1 if is supported and 0 otherwise.

You can refer to this document for more information on depth peel support https://www.mathworks.com/help/matlab/ref/opengl.html

And this for specifying rendering techniques: https://www.mathworks.com/help/sl3d/specify-rendering-techniques.html?

I hope that helps

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Answer 2

Tectract 2022-4-28

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在 MATLAB Online 中打开

I ran into this same problem. DepthPeelTransparency is causing weird issues with surf() function EdgeAlpha displaying incorrectly or diffent, on my new system.

you can use the command:

opengl hardwarebasic

to revert to the older-style or more basic style rendering that does not use DepthPeelTransparency

use the command:

opengl hardware

to revert this change in rendering back to using your full GPU capabilities including DepthPeelTranspancy