ScreenshotCamera.cs

using UnityEngine;
using System;

public class ScreenshotCamera
{
    static Vector3 FocusPoint;
    static float Aperture = 20.0f;

    RealTimeSince timeSinceMessage;
    string MessageText;

    void Message( string msg )
    {
        timeSinceMessage = 0;
        MessageText = msg;
    }

    public ScreenshotCamera( Camera main )
    {
        FocusPoint = Player.Local.GetComponentInChildren<CartoonEyes>().transform.position;
        Message( "Screenshot Camera (Press 2 to exit)" );
    }

    internal void Shutdown( Camera main )
    {
        var dof = Dof( main );
        if ( dof != null )
        {
            dof.active = false;
        }
    }

    internal void Update( Camera main )
    {
        Vector3 move = Vector3.zero;

        if ( Input.GetKey( KeyCode.W ) ) move += Vector3.forward;
        if ( Input.GetKey( KeyCode.S ) ) move -= Vector3.forward;
        if ( Input.GetKey( KeyCode.A ) ) move -= Vector3.right;
        if ( Input.GetKey( KeyCode.D ) ) move += Vector3.right;
        if ( Input.GetKey( KeyCode.Space ) ) move += Vector3.up;
        if ( Input.GetKey( KeyCode.LeftControl ) ) move -= Vector3.up;

        move = main.transform.rotation * move.normalized * Time.unscaledDeltaTime;

        var fovDelta = ((main.fieldOfView + 10.0f) / 200.0f);

        if ( Input.GetKey( KeyCode.LeftShift ) ) move *= 20.0f;
        if ( Input.GetKey( KeyCode.Q ) ) move /= 10.0f;

        var x = Input.GetAxisRaw( "Mouse X" );
        var y = Input.GetAxisRaw( "Mouse Y" );

        var sensitivity = Mathf.Clamp( fovDelta * 2.0f, 0.001f, 0.5f ) * 2.0f;

        x *= sensitivity;
        y *= sensitivity;

        if ( Input.GetKey( KeyCode.Mouse1 ) )
        {
            main.fieldOfView -= y;
            main.fieldOfView = Mathf.Clamp( main.fieldOfView, 0.4f, 180.0f );

            y = 0;
            x = 0;
        }

        var newRot = main.transform.rotation * Quaternion.Euler( -y, x, 0 );
        var newRotE = newRot.eulerAngles;
        newRotE.z = 0;
        main.transform.rotation = Quaternion.Euler( newRotE );

        main.transform.position += move;

        if ( Input.GetKeyDown( KeyCode.Mouse0 ) )
        {
            if ( !System.IO.Directory.Exists( "Screenshots" ) )
                System.IO.Directory.CreateDirectory( "Screenshots" );

            var fn = $"Screenshots/{DateTime.Now:ddMMMMyyyy-H-mm-ss}.png";
            ScreenCapture.CaptureScreenshot( fn );
            Debug.Log( $"Screenshot Saved To {fn}" );
        }

        UpdateDOF( main );
    }

    UnityEngine.Rendering.PostProcessing.DepthOfField Dof( Camera main )
    {
        var volume = main.GetComponent<UnityEngine.Rendering.PostProcessing.PostProcessVolume>();

        UnityEngine.Rendering.PostProcessing.DepthOfField dof = null;
        volume.profile.TryGetSettings<UnityEngine.Rendering.PostProcessing.DepthOfField>( out dof );
        return dof;
    }

    void UpdateDOF( Camera main )
    {
        var dof = Dof( main );
        if ( dof == null ) return;

        dof.active = true;

        if ( Input.GetKey( KeyCode.E ) )
        {
            RaycastHit hitInfo;
            if ( Physics.Raycast( new Ray( main.transform.position, main.transform.forward ), out hitInfo, 1000.0f ) )
            {
                FocusPoint = hitInfo.point + main.transform.forward * 0.05f;

                Message( $"Focused: {hitInfo.collider.gameObject.name}" );

            }
            else
            {
                FocusPoint = main.transform.position + main.transform.forward * 1000.0f;
                Message( $"Focused: Nothing" );
            }
        }

        if ( Input.GetKey( KeyCode.R ) )
        {
            Aperture += Time.unscaledDeltaTime * 8.0f;
            Message( $"Aperture: {Aperture:0.00}" );
        }
        if ( Input.GetKey( KeyCode.F ) )
        {
            Aperture -= Time.unscaledDeltaTime * 8.0f;
            Message( $"Aperture: {Aperture:0.00}" );
        }

        Aperture = Mathf.Clamp( Aperture, 0.05f, 32.0f );

        dof.aperture.Override( Aperture );
        dof.focalLength.Override( 120.0f );
        dof.focusDistance.Override ( Vector3.Distance( main.transform.position, FocusPoint ) );
        dof.kernelSize.Override( UnityEngine.Rendering.PostProcessing.KernelSize.VeryLarge );

    }

    public void OnGUI()
    {
        if ( timeSinceMessage < 1.0f )
        {
            var style = new GUIStyle( GUI.skin.label );
            style.fontSize = 32;
            style.normal.textColor = Color.white;
            style.alignment = TextAnchor.UpperCenter;

            GUI.Label( new Rect( 0, 32, Screen.width, Screen.height ), MessageText, style );
        }
    }
}