I have a 3D coordinate system.
I draw the 0.5f scale's grid lines at the XY plane.
I set the camera at Vector3f(0.0f, 0.0f, 2.0f);
I found the data Point3f(-0.5f, -0.5f, 0.0f) sit on the grid line perfectly.
but, not for this data Point3f(-0.5f, -0.5f, 1.0f).
I understand it is nearer to camera. So it appeared not on the grid line.
How can I have a cross-section view of the 3D coordinate system?
Any idea.
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