Adding some test code for the volume shader

Author: dbirman

Assets/AddressableAssetsData/AssetGroups/AllenCCF.asset

@@ -6753,6 +6753,10 @@ MonoBehaviour:
     m_Address: Assets/AddressableAssets/AllenCCF/614454277L.obj
     m_ReadOnly: 0
     m_SerializedLabels: []
+  - m_GUID: 523f4b2aa92687c4ca463a70e7e8fdd2
+    m_Address: Assets/AddressableAssets/AllenCCF/ontology_structure_minimal.csv
+    m_ReadOnly: 0
+    m_SerializedLabels: []
   m_ReadOnly: 0
   m_Settings: {fileID: 11400000, guid: 0971657f09fdf46b293c2b86160286ad, type: 2}
   m_SchemaSet:

Assets/AddressableAssetsData/WebGL/addressables_content_state.bin

@@ -206,6 +206,115 @@ Transform:
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+--- !u!1 &1254943195
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+  - component: {fileID: 1254943200}
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+  m_GameObject: {fileID: 1254943195}
+  m_Mesh: {fileID: 10202, guid: 0000000000000000e000000000000000, type: 0}
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+  m_LocalScale: {x: 5.28, y: 3.2, z: 4.56}
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+  m_RootOrder: 3
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+--- !u!114 &1254943200
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@@ -237,6 +346,7 @@ MonoBehaviour:
   m_Name: 
   m_EditorClassIdentifier: 
   addressablesStorageRemotePath: http://data.virtualbrainlab.org/AddressablesStorage
+  buildVersion: 0.1.0
 --- !u!4 &1367620461
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   m_ObjectHideFlags: 0
@@ -263,7 +373,6 @@ MonoBehaviour:
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   m_Name: 
   m_EditorClassIdentifier: 
-  remoteLoader: {fileID: 1367620460}
 --- !u!1 &1461802598
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Assets/AddressableAssetsData/Windows/addressables_content_state.bin

@@ -0,0 +1,33 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Texture3DAlpha : MonoBehaviour
+{
+    private Texture3D materialTexture;
+    private Color blackTransparent = new Color(0f, 0f, 0f, 0f);
+
+    // Start is called before the first frame update
+    void Start()
+    {
+        Material mat = GetComponent<Renderer>().material;
+        int[] texIDs = mat.GetTexturePropertyNameIDs();
+        foreach (int texID in texIDs)
+            Debug.Log(texID);
+
+        materialTexture = (Texture3D) mat.mainTexture;
+
+        for (int xi = 0; xi < materialTexture.width; xi++)
+        {
+            for (int yi = 0; yi < materialTexture.height; yi++)
+            {
+                for (int zi = 0; zi < materialTexture.depth; zi++)
+                {
+                    if (materialTexture.GetPixel(xi, yi, zi) == Color.black)
+                        materialTexture.SetPixel(xi, yi, zi, blackTransparent);
+                }
+            }
+        }
+        materialTexture.Apply();
+    }
+}