CameraRendering.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using System.IO;
				
[RequireComponent(typeof(Camera))]
public class CameraRendering : MonoBehaviour {
	public RenderTexture cubemap_left;
	public RenderTexture cubemap_right;
	public RenderTexture equirect;
				
	public float stereoSeparation = 0.064f;		// IPD.
				
	private bool m_firstF = true;
				
	// Use this for initialization
	void Start () {
		Camera camera = this.GetComponent<Camera>();
		camera.stereoSeparation = stereoSeparation; // Eye separation (IPD) of 64mm.
	}
					
	// Update is called once per frame
	void Update () {
		if (cubemap_left == null || cubemap_right == null) return;
				
		// RenderTexture (cube) Rendering.
		Camera camera = this.GetComponent<Camera>();
		camera.RenderToCubemap(cubemap_left, 63, Camera.MonoOrStereoscopicEye.Left); 
		camera.RenderToCubemap(cubemap_right, 63, Camera.MonoOrStereoscopicEye.Right); 
				
		// left and right cubemap to Equirecangular.
		if (equirect == null) return;
		cubemap_left.ConvertToEquirect(equirect, Camera.MonoOrStereoscopicEye.Left);
		cubemap_right.ConvertToEquirect(equirect, Camera.MonoOrStereoscopicEye.Right);		
				
		if (m_firstF) {
			m_firstF = false;
			savePng();		// save png file.
		}
	}
				
	void savePng () {
		if (equirect == null) return;
		Texture2D tex = new Texture2D(equirect.width, equirect.height, TextureFormat.RGB24, false);
		RenderTexture.active = equirect;
		tex.ReadPixels(new Rect(0, 0, equirect.width, equirect.height), 0, 0);
		tex.Apply();

		byte[] bytes = tex.EncodeToPNG();
		Object.Destroy(tex);
				 
		File.WriteAllBytes(Application.dataPath + "/../Unity_SavedScreen.png", bytes);
	}	
}
	

Camera Y	0.25 m

Camera Y	0.5 m

Camera Y	0.75 m

Camera Y	0.95 m

高さを変えても、部屋のサイズは実際よりも大きく見え、球の接地感も弱い。

カメラを引いていった場合の検証。

Camera Y	0.5 m
Camera Position Z	-0.2

Camera Y	0.5 m
Camera Position Z	-0.4

Camera Y	0.5 m
Camera Position Z	-0.6