Using VideoWriter to make a Movie without Displaying the Figure each time

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Mark Fasano 2022-4-4

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1688149-using-videowriter-to-make-a-movie-without-displaying-the-figure-each-time

I have a variable called movie which is a multidimensional array of a solution to a partial differential equation at every kth time step. I now want to use VideoWriter to make a movie out of this variable. However, it seems to take forever in run-time because Matlab is actually displaying each frame on the screen. Is there anyway to speed this up? My code for this section is attached below:

%%
clf;
vid = VideoWriter('movie_2D.avi');
vid.FrameRate = 20;
open(vid);
frames = 1000;
for i=1:frames
    figure(1);
    surf(X,Z,movie(:,:,1+(t_max/frames)*i));
    colormap parula; shading interp; grid off; colorbar; caxis([-1,1]);
    xlim([-x_Max, x_Max])
    ylim([0, 1])
%     title('N=%d, M=%d, \Delta t=$d, \lambda_0=%d, \lambda_H=%d',N,M,dt,lambda0,lambdaH)
    title('N=64, M=32, \Delta t=.0001, \lambda_0=100, \lambda_H=10')
    xlabel('x')
    ylabel('y')
    zlabel('u')
    view(0,90);
    fig = gcf;
    frame = getframe(fig);
    writeVideo(vid,frame);
end
close(vid)