45 lines
1.5 KiB
C#
45 lines
1.5 KiB
C#
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using Cinemachine;
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using RND;
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using UnityEngine;
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public class CameraFovCorrector : BaseCameraCorrector
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{
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private FovCorrector _data;
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protected override void OnInit()
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{
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_data = new FovCorrector(VirtualCamera, VirtualCamera.m_Lens.FieldOfView);
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}
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public override void SyncCameraProperty(float widthOrHeight)
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{
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_data.SyncCameraFov(DefaultRatio, Camera.aspect, widthOrHeight);
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}
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private static float CalculateVerticalFov(float hFovInDeg, float aspectRatio)
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{
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float hFovInRads = hFovInDeg * Mathf.Deg2Rad;
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float vFovInRads = 2 * Mathf.Atan(Mathf.Tan(hFovInRads / 2) / aspectRatio);
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return vFovInRads * Mathf.Rad2Deg;
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}
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private class FovCorrector
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{
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private readonly float _defaultFov;
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private readonly CinemachineVirtualCamera _virtualCamera;
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public FovCorrector(CinemachineVirtualCamera camera, float defaultFov)
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{
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_virtualCamera = camera;
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_defaultFov = defaultFov;
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}
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public void SyncCameraFov(float targetAspect, float cameraAspect, float widthOrHeight)
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{
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float horizontalFov = CalculateVerticalFov(_defaultFov, 1 / targetAspect);
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float constantWidthFov = CalculateVerticalFov(horizontalFov, cameraAspect);
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_virtualCamera.m_Lens.FieldOfView = Mathf.Lerp(constantWidthFov, _defaultFov, widthOrHeight);
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}
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}
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}
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