How to ensure desired fov / ratio is preserved

[anonymous-edc (Anonymous User)]

Hi Stephen,

I did not want to orient the answer but, so far, we came up with two workarounds:

• Using a scene capture with desired resolution, in that case, we can inder render with the desired render target resolution. We are yet to double check that the actual expected hfov / vfov ratio in indeed preserved.
• Using a customized viewport with an override from the “virtual float GetDesiredAspectRatio () const override” method.

Both options have drawbacks and feel wrong.

If we have a unique view and require a render target, then we need an extra rendering we were not able to disable impacting performance for no reason.

If we use a modified viewport, the ratio override cannot be applied to multiple views.

It does fill we are missing something. In particular, why is there no option in this enum for preserving user desired values :

https://dev.epicgames.com/documentation/en\-us/unreal\-engine/API/Runtime/Engine/EAspectRatioAxisConstraint

More links are exploring solutions but none seem fine:

How can I set vertical AND horizontal FoV independent from each other with a cine camera in C++?

To get the image to stretch to fill the window, no matter what the window dimensions are, you will have to use a render target to render from the camera, and then map the rendered part of that render target as a texture onto the window using a simple GUI widget bound to the target.

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Hi, I’m not sure what yo mean? Like an initial rotation/translation of the camera? Or placing the viewplane at a different position? Best, Florian