Surf plot mesh looks jagged when I set FaceAlpha
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Hongbo Zhao
il 11 Mag 2018
Modificato: Walter Roberson
il 11 Ago 2021
Below is the example given in the "surf" documentation. The mesh looks smooth when `FaceAlpha` is not included but it looks jagged when it's transparent. Is this a graphics card issue or can it somehow be fixed?
[X,Y] = meshgrid(-5:.5:5);
Z = Y.*sin(X) - X.*cos(Y);
s = surf(X,Y,Z,'FaceAlpha',0.5)
2 Commenti
Walter Roberson
il 12 Mag 2018
Let me think... You are using r2013b or r2014a or so? If so then there was bug having to do with opengl use, which gets enabled automatically when alpha is used.
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Leone Campos
il 10 Ago 2021
opengl hardwarebasic
Code
opengl hardwarebasic
% opengl hardware
% opengl software
[X,Y] = meshgrid(-5:.5:5);
Z = Y.*sin(X) - X.*cos(Y);
s = surf(X,Y,Z,'FaceAlpha','0.5')
With software
![software](https://www.mathworks.com/matlabcentral/answers/uploaded_files/708657/software.png)
With hardware
![hardware](https://www.mathworks.com/matlabcentral/answers/uploaded_files/708662/hardware.png)
With hardwarebasic
![hardwarebasic](https://www.mathworks.com/matlabcentral/answers/uploaded_files/708667/hardwarebasic.png)
Più risposte (1)
Jan
il 12 Mag 2018
It looks nice in my Matlab 2016b/Win10. Setting the Alpha blending enables the OpenGL renderer. If this causes troubles, try:
opengl software
Does this help? Do you have the current versions of the drivers installed? Which OS are you using? Can you post a screenshot such that "looks jagged" gets more clear?
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