PTB-OpenGL 立体渲染和眼睛分离值

问题描述

我尝试使用 OpenGL 非对称平截头体平行轴投影绘制 3D 点云。一般原则可以在这个网站上找到(http://paulbourke.net/stereographics/stereorender/#)。但是现在的问题是，当我使用真正的眼睛分离（0.06m）时，我的眼睛不能很好地融合。使用眼距=1/30*焦距时，没有压力。不知道是计算有问题，还是参数有问题？部分代码贴在下面。谢谢大家。

for view = 0:stereoViews
    % Select 'view' to render (left- or  right-eye):
    Screen('SelectStereoDrawbuffer',win,view);

    % Manually reenable 3D mode in  preparation of eye draw cycle:
    Screen('BeginopenGL',win);

    % Set the eye seperation:
    eye = 0.06; % in meter

    % Caculate the frustum shift at the near plane:
    fshift = 0.5 * eye *  depthrangen/(vdist/100);  % vdist is the focal length,56cm,0.56m
    right_near = depthrangen *  tand(FOV/2); % depthrangen is the depth of the near plane,0.4. %FOV is the field of view,18°
    left_near = -right_near;
    top_near = right_near* aspectr;
    bottom_near = -top_near;

    % Setup frustum projection for this  eyes 'view':
    glMatrixMode(GL.PROJECTION)
    glLoadIdentity;
    eyeside = 1+(-2*view); % 1 for left eye,-1 for right eye
    glFrustum(left_near + eyeside *  fshift,right_near + eyeside * fshift,bottom_near,top_near,%depthrangen,depthrangefObj);         

    % Setup camera for this eyes 'view':
    glMatrixMode(GL.MODELVIEW);
    glLoadIdentity;
    gluLookAt(0 - eyeside * 0.5 * eye,0 - eyeside * 0.5 * eye,-1,1,0);
    
    % Clear color and depths buffers:
    glClear;
    moglDrawDots3D(win,xyz(:,:,iframe),10,[],1);
    moglDrawDots3D(win,xyzObj(:,1);

    % Manually disable 3D mode before  calling Screen('Flip')!
    Screen('EndOpenGL',win);
    % Repeat for other eyes view if in stereo presentation mode...
end

解决方法

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