How to vertically stretch camera view

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What I have is two cameras in the exact same location in a scene, but they are both sharing a Normalized Viewport Rect of half width, such that the game view has a vertical split screen appearance. I am trying to make game compatible with a head-mounted display for my class, and as such, i need both cameras to produce a vertically stretched rendering of the scene, something similar to this image:

alt text

I am looking for either an inspector-based or scripted solution. Thanks in advanced!

Answer 1

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Answer by Yokimato · Mar 28, 2013 at 08:43 PM

You're not going to be getting it from the default camera editor options. You'll need to create a script which overrides the projection matrix of the camera. If you're not familiar with what the projection matrix is, or how it works, I hope you're comfortable with trigonometry functions, as it's required to get a firm grasp.

Once you understand how it works, you can definitely make your changes encapsulated into a variable which is in turn exposed to the editor.

Here's is the property on Camera you're going to set to your custom projection matrix: http://docs.unity3d.com/Documentation/ScriptReference/Camera-projectionMatrix.html

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darkyoddd · Mar 28, 2013 at 09:23 PM 0

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Thanks for the response. Do you have an idea as to what kind of matrix would produce a "50% width" effect?

Alekxss darkyoddd · Jun 09, 2016 at 06:41 AM 2

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3 years later

cam.ResetProjectionMatrix();

var m = cam.projectionMatrix;

m.m00 = 2; // width m.m11 = 2; // height

cam.projectionMatrix = m;

bitcoinhibby Alekxss · Jun 12, 2016 at 12:02 AM 0

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thank you!

Answer 2

Answer by ClaudioPasca · Nov 11, 2016 at 12:12 PM

Easy way

https://www.reddit.com/r/unity_tutorials/comments/4su2lf/how_to_stretch_what_the_camera_renders/

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How to vertically stretch camera view

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