stl file rendering is not working can you help me to solve it?

FV = stlread('sample.stl'); 
trimesh(FV)
patch(FV,'FaceColor',[10 10 10],'EdgeColor','none','FaceLighting','gouraud','AmbientStrength',15);

% Add a camera light, and tone down the specular highlighting
camlight('headlight');
material('dull');

% Fix the axes scaling, and set a nice view angle
axis('image');
view([-500 500]);

Error using patch
Not enough input arguments.
Error in PART1 (line 3)
patch(FV,'FaceColor',[10 10 10],'EdgeColor','none','FaceLighting','gouraud','AmbientStrength',0.15);

[darova]

Please attach sample file

Answer 1

[Simon Chan]

You may need trisurf or triplot (2D) instead of function patch.