How to set the shadow in the trimesh figure?
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I am trying to display surface mesh of the brain in Matlab. I used the delaunayTriangulation object and trimesh function. I need to show the 3D effect with some shadow on the mesh. So I could get some specific point coordinates on it. How to set the shadows?
I want to get the effect like below, which is from Meshlab. It doesn't plot the edges.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/339661/image.png)
My matlab codes and figure is as below.
trimesh(TR,'FaceColor',ones(3,1)*0.9,'LineStyle','none');
set(gca, 'color', 'k');
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/339664/image.png)
I don't have the shadow on the surface to show the 3D effect.
Thank you for any suggestions.
----------------------Edited 1st time-------------------
I test some codes with lighting. Even though I don't know how to give an uniform light from every direction. I made some progress. How many camlight could make an all-sided view with shadow.
trimesh(TR,'FaceColor',ones(3,1)*0.9,'LineStyle','none');
set(gca, 'color', 'k');
lighting gouraud;
a1 = camlight('right');
a2 = camlight('left');
a3 = camlight('headlight');
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/339700/image.png)
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