Hey all, If I have a camera setup with my reference configuration at 1080x1920 (9x16 portrait aspect ratio) with an FOV of say 30. How can I calculate the FOV (at runtime) for different aspect ratios? I want the FOV calculated to give the same visual size appearance (size of objects). I see that there's no linear relationship between the two so I assume some trigonometry or similar is needed. Any hints?