I'm trying to load a video via url, but I keep getting the same error. I'm using Unity 5.3 and the example code from http://docs.unity3d.com/ScriptReference/WWW-movie.html (heavily modified because the current example doesn't compile).
using UnityEngine;
using System.Collections;
// Make sure we have gui texture and audio source
[RequireComponent (typeof(GUITexture))]
[RequireComponent (typeof(AudioSource))]
public class TestMovie : MonoBehaviour {
string url = "http://www.unity3d.com/webplayers/Movie/sample.ogg";
WWW www;
void Start () {
// Start download
www = new WWW(url);
StartCoroutine(PlayMovie());
}
IEnumerator PlayMovie(){
MovieTexture movieTexture = www.movie;
// Make sure the movie is ready to start before we start playing
while (!movieTexture.isReadyToPlay){
yield return 0;
}
GUITexture gt = gameObject.GetComponent<GUITexture>();
// Initialize gui texture to be 1:1 resolution centered on screen
gt.texture = movieTexture;
transform.localScale = Vector3.zero;
transform.position = new Vector3 (0.5f,0.5f,0f);
// gt.pixelInset.xMin = -movieTexture.width / 2;
// gt.pixelInset.xMax = movieTexture.width / 2;
// gt.pixelInset.yMin = -movieTexture.height / 2;
// gt.pixelInset.yMax = movieTexture.height / 2;
// Assign clip to audio source
// Sync playback with audio
AudioSource aud = gameObject.GetComponent<AudioSource>();
aud.clip = movieTexture.audioClip;
// Play both movie & sound
movieTexture.Play();
aud.Play();
}
}
I added this as a script to the Main Camera in a new scene, and I get this error:
Error: Cannot create FMOD::Sound instance for resource (null), (An invalid parameter was passed to this function. )
UnityEngine.WWW:get_movie()
<PlayMovie>c__Iterator4:MoveNext() (at Assets/TestMovie.cs:20)
UnityEngine.MonoBehaviour:StartCoroutine(IEnumerator)
TestMovie:Start() (at Assets/TestMovie.cs:16)
(Line 20 is MovieTexture movieTexture = www.movie;
)
I've been working on this for a while now, it's happened on many files and both of my systems.
I found a solution! I tested the code with unity 5.2.X and 5.3.X.
I dont know why but Unity 3d requires first wait unitl the download is done with isDone == true
and after the copy of the texture wait until the isReadyToPlay == true
.
The movie file must be OGG Video format some MP4 files doesn't work.
Well. Check the code:
using UnityEngine;
using UnityEngine.UI;
using System.Collections;
public class MovieTextureStream : MonoBehaviour {
public Text progressGUI;
public MeshRenderer targetRender = null;
public AudioSource targetAudio = null;
public string URLString = "http://unity3d.com/files/docs/sample.ogg";
MovieTexture loadedTexture;
IEnumerator Start() {
if(targetRender ==null) targetRender = GetComponent<MeshRenderer> ();
if(targetAudio ==null) targetAudio = GetComponent<AudioSource> ();
WWW www = new WWW (URLString);
while (www.isDone == false) {
if(progressGUI !=null) progressGUI.text = "Progresso do video: " + (int)(100.0f * www.progress) + "%";
yield return 0;
}
loadedTexture = www.movie;
while (loadedTexture.isReadyToPlay == false) {
yield return 0;
}
targetRender.material.mainTexture = loadedTexture;
targetAudio.clip = loadedTexture.audioClip;
targetAudio.Play ();
loadedTexture.Play ();
}
}
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