I can only reproduce this problem if I make the window size rather small, like 600 pixels wide. If I make the window bigger, the extra lines go away. Also, I can only see it on the screen; even keeping the small Chimera window, when I save an image of the same size but with supersampling (which is the default) there are no extra lines on the saved image. So I can only say to try one or more of the following:

(1) don’t screenshot, use save image with supersampling (which initially saves a bigger image and then shrinks it to the final size); try supersampling at least 2x2, could also try 3x3… this is a setting in “Image Options” in the dialog from menu: File… Save Image

On Jul 2, 2019, at 8:49 AM, Elaine Meng <meng@cgl.ucsf.edu> wrote:

Dear Henrique,
I don’t know if there is a trick to fix this or not. Could you send us the structure (the atoms you are showing) with explanation of what steps you used to make this plane, or a session file, so we have an example to try with?
Thanks,
Elaine
-----
Elaine C. Meng, Ph.D.
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Jul 2, 2019, at 7:02 AM, Henrique C. S. Junior <henriquecsj@gmail.com> wrote:

Dear list, I'd like to create a disk that didn't show lines in the surface depending on the orientation angle (see the image attached). Right now I can clearly see that the circle is formed by several triangles, so I'd like to smooth things up.
I can actually get rid of the triangles by disabling the silhouette of the plane, but I'd like to keep it to show where the plane ends.

Thanks in advance

--
Henrique C. S. Junior

<Annotation 2019-07-02 104748.jpg>

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