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3D camera Zoom in and follow physics in java?

I am trying to make sure that no matter how far apart the two objects are, they both stay on the screen. I am using JOGL but it doesn't matter as I just need some help with the math. This is what I have so far:

float distance = (float) ((Math.sqrt((p1.x - p2.x) + (p1.y - p2.y))));
float camx = (float)((p1.x + p2.x) * 0.5);
float camy = (float)((p1.y + p2.y) * 0.5);
float camz = (float) (distance * 5);

What math do I need to get Z to scale properly?

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float distance = (float) ((Math.sqrt(Math.pow((p1.x - p2.x),2.0) + Math.pow((p1.y - p2.y), 2.0))));
float camx = (float)((p1.x + p2.x) * 0.5);
float camy = (float)((p1.y + p2.y) * 0.5);
float camz = (float) Math.abs(distance);


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If both objects have z = 0 and the viewing angle of the screen (from the center of the screen to the edge) is ax and ay for the horizontal and vertical angles, then:

zx = abs((p1.x-p2.x)*0.5)/tan(ax)
zy = abs((p1.y-p2.y)*0.5)/tan(ay)

and



camz = max(zx, zy)

Here zx and zy are the distances to get objects in the horizontal and vertical screen dimensions, and camz is the distance that meets both criteria. Also note that ax and ay are in radians (for example, if you assume your screen is 40 degrees wide, that is, 20 degrees, or ax = 20 * (pi / 180) = 0.3419 radians).

Your values ​​for camx and camy were correct.

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I may not understand your situation, but could you just do

float camx = (p1.x + p2.x) * 0.5;
float camy = (p1.y + p2.y) * 0.5;
float camz = (p1.z + p2.z) * 0.5;

This positions the camera directly between two objects.

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If you need to fix it,

float distance = (float) ((Math.sqrt ((p1.x - p2.x) ^ 2 + (p1.y - p2.y) ^ 2)));

I'm not sure about the syntax. I'm just saying that you need to get a strength of 2 before adding vectors.

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