Attach below script to any object in your game. Click Play in editor and at the desired point, press "z" in keyboard to take your screenshot as a png file (if game is built, use Ctrl-Z). The screenshot will be stored (ie; the save location) in your Unity project's root folder
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class TakeScreenShot : MonoBehaviour {
// Update is called once per frame
void Update () {
#if UNITY_EDITOR
if (Input.GetKey(KeyCode.Z))
#else
if((Input.GetKey(KeyCode.RightControl)
|| Input.GetKey(KeyCode.LeftControl))
&& Input.GetKeyDown(KeyCode.Z))
#endif
{
Debug.Log("Taking screenshot");
ScreenCapture.CaptureScreenshot("ScreenShot-" +
UnityEngine.SceneManagement.SceneManager.GetActiveScene().name +
".png");
Debug.Log("Done");
}
}
}
Tip: If you want a specific resolution of screenshot, make sure to set this in the player (ie; in Game tab)
In the below example, we are setting resolution to 2400 x 1200. When you use above script, the saved screenshot will have the same resolution.
See example below. Use + symbol to add custom resolutions