Display question about transparent intersected surfaces
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Why when I set the intersected surfaces' transparent with 'FaceAlpha', the intersected regions display invalid.
Code:
x=[0:0.01:3];
y=[0:0.01:5];
[X,Y]=meshgrid(x,y);
Z1=X*1.1+Y*1;
Z2=X+Y*1.1;
mesh(X,Y,Z1,'FaceColor','b','EdgeAlpha',0,'FaceAlpha',0.5)
hold on
mesh(X,Y,Z2,'FaceColor','r','EdgeAlpha',0,'FaceAlpha',0.5)
The figure
3 个评论
Hao Li
2018-7-10
If the FaceAlpha is set as 1, the figure
How can I make the transparent figures correct?
Jan
2018-7-10
Which Matlab version are you using? Is OpenGL set to hardware or software?
I can reproduce this effect with Matlab online.
Hao Li
2018-7-10
Thanks for your answer. The version is matlab R2018a, the OpenGL was set to hardware. If I set OpenGL to software, the front and back relationship is wrong, the figure :
采纳的回答
Wentao Du
2018-7-13
This issue is due to the Order Independent Transparency method used by MATLAB called "Depth Peeling." Unfortunately, there are no existing workarounds.
Changing to "opengl" setting to "hardwarebasic" gives a slightly better result, as this triggers the transparency to use an "object sort" method (Typically this is worse than any Order Independent Transparency method). Or you may use the "painters" renderer for the figures created by executing the following:
>> set(gcf,'Renderer','painters');
Our development team is looking into addressing this issue and it will be considered for a future release of MATLAB.
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