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WACVR/Assets/Script/Configuration/SkyboxSwitcher.cs

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C#
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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
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using System.IO;
using UnityEngine.Networking;
using System.Runtime.InteropServices;
using System;
public class SkyboxSwitcher : MonoBehaviour
{
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private string skyboxPath;
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public List<FileInfo> imageFiles = new List<FileInfo>();
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public List<Texture2D> textures = new List<Texture2D>();
public List<System.IntPtr> ptrs = new List<System.IntPtr>();
public GameObject Room;
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[SerializeField]
private List<Material> skyboxes;
[SerializeField]
private int currentSkyboxIndex = 0;
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private TMP_Dropdown Dropdown;
void Start()
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{
skyboxes.Insert(0, RenderSettings.skybox); // add ubiquitous default skybox (should be current)
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// check StreamingAssets folder for additional skybox textures
skyboxPath = Path.Combine(Application.streamingAssetsPath, "SkyboxTextures");
StartCoroutine(AddSkyboxes());
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Dropdown = GetComponent<TMP_Dropdown>();
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Dropdown.onValueChanged.AddListener((int value) => {
if (value == 0)
{
Room.SetActive(true);
}
else
{
Room.SetActive(false);
currentSkyboxIndex = Dropdown.value-1;
SetSkybox();
}
});
}
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IEnumerator AddSkyboxes()
{
var skyboxDir = new DirectoryInfo(skyboxPath);
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imageFiles.AddRange(skyboxDir.GetFiles("*.png"));
imageFiles.AddRange(skyboxDir.GetFiles("*.jpg"));
imageFiles.AddRange(skyboxDir.GetFiles("*.jpeg"));
//List<FileInfo> hdrFiles = new List<FileInfo>();
//hdrFiles.AddRange(skyboxDir.GetFiles("*.hdr"));
//hdrFiles.AddRange(skyboxDir.GetFiles("*.hdri"));
//hdrFiles.AddRange(skyboxDir.GetFiles("*.exr"));
foreach (var file in imageFiles) // Typical image files
{
var uwr = UnityWebRequestTexture.GetTexture(file.ToString());
yield return uwr.SendWebRequest();
if (uwr.result == UnityWebRequest.Result.ConnectionError)
{
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Debug.LogWarning($"Couldn't load skybox texture at {uwr.uri}.");
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}
else
{
var skyboxMat = new Material(Shader.Find("Skybox/Panoramic"));
skyboxMat.SetFloat("_Rotation", 45f);
var texture = DownloadHandlerTexture.GetContent(uwr);
if (texture != null)
{
skyboxMat.SetTexture("_MainTex", texture);
skyboxes.Add(skyboxMat);
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Dropdown.options.Add(new TMP_Dropdown.OptionData(file.Name));
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}
}
}
SetSkybox();
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//foreach (var file in hdrFiles) // HDR files -- no way to use by scripting?
//{
// var uwr = UnityWebRequest.Get(file.ToString());
// yield return uwr.SendWebRequest();
// if (uwr.result == UnityWebRequest.Result.ConnectionError)
// {
// Debug.Log($"Had trouble loading file {uwr.uri}.");
// }
// else
// {
// byte[] data = uwr.downloadHandler.data;
// if (data != null)
// {
// GCHandle pinnedArray = GCHandle.Alloc(data, GCHandleType.Pinned);
// IntPtr pointer = pinnedArray.AddrOfPinnedObject();
// var cubemap = Cubemap.CreateExternalTexture(2200, TextureFormat.DXT5, false, pointer);
// var skyboxMat = new Material(Shader.Find("Skybox/Panoramic"));
// skyboxMat.SetTexture("_Tex", cubemap);
// skyboxes.Add(skyboxMat);
// pinnedArray.Free();
// }
// // FIXME: convert Texture2D to Cubemap
// //textures.Add(texture);
// //ptrs.Add(texture.GetNativeTexturePtr());
// //texture = textures[textures.Count - 1];
// //var cubemap = Cubemap.CreateExternalTexture(texture.width, texture.format, false, texture.GetNativeTexturePtr());
// //skyboxMat.SetTexture("_Tex", cubemap);
// }
//}
}
private void SetSkybox()
{
if (currentSkyboxIndex < skyboxes.Count && skyboxes[currentSkyboxIndex] != null)
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RenderSettings.skybox = skyboxes[currentSkyboxIndex];
}
}