Confirmed.  I updated the Summary to correctly use the keyword "campos".  This is probably related to the fact that OpenGL uses single, rather than double, values for calculations.  As such, there is an easy workaround which is to increase the size of the small delta you are using.  Instead of 1e-12, try 1e-7. 

campos, campos(campos-1e-7); campos

Because there is a simple workaround, I'm lowering the Priority and Severity of this bug.

Hi,

I got an error for the example below. If the patch is replaced with a fill3, no error is issued. Thanks.   

P0=[6  3 -4
    0 -2 -4
    0 -6  6
    6 -6  3];


% with patch

figure; ax2=axes;
patch(ax2,P0(:,1), P0(:,2), P0(:,3), 'r');
hold on; xlabel('x'); ylabel('y'); 
campos, campos(campos-1e-12); campos
 
error: set: "cameraviewangle" must be finite
error: called from
    campos at line 104 column 8
 
% no patch, no error message

figure; ax2=axes;
fill3(ax2,P0(:,1), P0(:,2), P0(:,3), 'r');
hold on; xlabel('x'); ylabel('y'); 
campos, campos(campos-1e-12); campos