External Texture Rendering on Android

Hey all,

I am trying to render a GL_TEXTURE_EXTERNAL_OES in Unity. The shader is compiling properly, but all I get is a black screen on device. I create the texture and hook it up properly on the Java side, send that over to Unity and do:

Code (CSharp):

1.  
2. m_currentTexture = Texture2D.CreateExternalTexture(1080, 1920, TextureFormat.RGB24, true, true, new System.IntPtr(webviewTextureReference));
3. GetComponent<Renderer>().material.SetTexture("_MainTex", m_currentTexture);
4.  

My shader looks like:

Code (CSharp):

1. Shader "Unlit/ViewTextureShader"
2. {
3.     Properties
4.     {
5.         _MainTex("Texture", 2D) = "white" {}
6.     }
7.         SubShader
8.     {
9.         Tags { "RenderType" = "Opaque" }
10.         LOD 100
11.         Pass
12.         {
13.             GLSLPROGRAM
14.  
15.             #ifdef VERTEX
16.  
17.             out vec2 textureCoordinates;
18.  
19.             void main()
20.             {
21.                 gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
22.                 textureCoordinates = gl_MultiTexCoord0.xy;
23.             }
24.             #endif
25.  
26.             #ifdef FRAGMENT
27.             #extension GL_OES_EGL_image_external_essl3 : require
28.             uniform samplerExternalOES _MainTex;
29.             in vec2 textureCoordinates;
30.             void main()
31.             {
32.                 gl_FragColor = texture2D(_MainTex, textureCoordinates);
33.             }
34.             #endif
35.             ENDGLSL
36.         }
37.     }
38. }

 

You can use this plugin
https://www.assetstore.unity3d.com/#!/content/89901