Unity3D: Display the game only on 90% of the screen space

Question

Currently my game occupies 100% of the screen, and HUD elements are scattered around the corners. Some of top-right, some on bottom-left, and some on bottom-right. Is there a way using which I can push the HUD elements to occupy right 10%(say) part of the screen, and remaining 90% left part be used to render the game? Something like the example below?

I could move the HUD to the right part, but then it will hide the game screen below it. Is there any way, I could reserve the right part for HUD only?

alt text

Answer 1

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Answer by Ymrasu · Feb 27, 2019 at 03:44 AM

Actually, cameras have a rect struct on them to determine the portion of the viewport to render on. Measured from 0f to 1f (percentages). So you can do something like this:

 Rect camRect = Camera.main.rect;
 camRect.xMax = 0.9f; // 90% of viewport
 Camera.main.rect = camRect;

Doing this though means that you need a second camera set up to only look at your UI with the xMin starting at 0.9f

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vverma9 · Feb 27, 2019 at 03:48 AM 0

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wow, that's a much better and elegant solution. $$anonymous$$uch thanks to you :)

Answer 2

Answer by AaronBacon · Feb 27, 2019 at 12:04 AM

So, this may not be the Best way to do it, but you can render a Camera to a UI Object on a canvas, similar to a Minimap, Instead of just filling the players view with it. To do this, you need to make a new camera, as well as an object in your assets folder called the Render Texture, that will allow the new Camera to cast to it. alt text

You then want to go into the new Cameras Inspector and Set that Render Texture asset to be its Target Texture alt text

Finally, you want to create a UI "RawImage" Element in the scene. You can then set its Texture To also be the Minimap Render Texture. What You should now have is a scene that has a Texture on the canvas Showing the Camera View of the Minimap Cam. Eg: alt text

Now you should be able to just mess with the Camera, Render Texture and RawImage Settings to get it to cover a sufficient area of the screen. (Probably set the Canvas to Scale with screen Size)

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vverma9 · Feb 27, 2019 at 01:26 AM 0

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Thanks for your insight, I will try it and get back to you.

shieldgenerator7 · Nov 20, 2020 at 02:59 AM 1

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This was exactly what I was looking for. Thank you!

AaronBacon shieldgenerator7 · Nov 26, 2020 at 04:08 AM 0

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No Problem, glad I could help lol

Unity3D: Display the game only on 90% of the screen space

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