jeromemaurey · November 5, 2019 00:18 · Nov 5, 2019 · Jul 17, 2017
diff --git a/BakeStaticCubemap.cs b/BakeStaticCubemap.cs
@@ -64,16 +64,17 @@ void OnWizardUpdate()
 
     void OnWizardCreate ()
     {
-
+        
         // Create temporary camera for rendering.
         GameObject go = new GameObject( "CubemapCam", typeof(Camera) );
         // Camera settings. 
-        go.camera.depth = cameraDepth;
-        go.camera.backgroundColor = cameraBackgroundColor;
-        go.camera.cullingMask = cameraLayerMask;
-        go.camera.nearClipPlane = cameraNearPlane;
-        go.camera.farClipPlane = cameraFarPlane;
-        go.camera.useOcclusionCulling = cameraUseOcclusion;
+        var cam = go.GetComponent<Camera>();
+        cam.depth = cameraDepth;
+        cam.backgroundColor = cameraBackgroundColor;
+        cam.cullingMask = cameraLayerMask;
+        cam.nearClipPlane = cameraNearPlane;
+        cam.farClipPlane = cameraFarPlane;
+        cam.useOcclusionCulling = cameraUseOcclusion;
         // Cubemap settings
         cubemap.filterMode = cubemapFilterMode;
         // Set antialiasing
@@ -84,7 +85,7 @@ void OnWizardCreate ()
         go.transform.rotation = Quaternion.identity;
 
         // Bake the cubemap
-        go.camera.RenderToCubemap(cubemap);
+        cam.RenderToCubemap(cubemap);
 
         // Rendering individual images
         if(createIndividualImages)
@@ -96,18 +97,19 @@ void OnWizardCreate ()
 
             RenderIndividualCubemapImages(go);
         }
-
 
         // Destroy the camera after rendering.
         DestroyImmediate(go);
+
     }
 
     void RenderIndividualCubemapImages(GameObject go)
     {
-        go.camera.backgroundColor = Color.black;
-        go.camera.clearFlags = CameraClearFlags.Skybox;
-        go.camera.fieldOfView = 90;    
-        go.camera.aspect = 1.0f;
+        var cam = go.GetComponent<Camera>();
+        cam.backgroundColor = Color.black;
+        cam.clearFlags = CameraClearFlags.Skybox;
+        cam.fieldOfView = 90;    
+        cam.aspect = 1.0f;
 
         go.transform.rotation = Quaternion.identity;
 
@@ -116,11 +118,11 @@ void RenderIndividualCubemapImages(GameObject go)
         {
             string imageName = Path.Combine(imageDirectory, cubemap.name + "_"
                     + cubemapImage[camOrientation] + ".png");
-            go.camera.transform.eulerAngles = eulerAngles[camOrientation];
+            cam.transform.eulerAngles = eulerAngles[camOrientation];
             RenderTexture renderTex = new RenderTexture(cubemap.height, 
                     cubemap.height, cameraDepth);
-            go.camera.targetTexture = renderTex;
-            go.camera.Render();
+            cam.targetTexture = renderTex;
+            cam.Render();
             RenderTexture.active = renderTex;
 
             Texture2D img = new Texture2D(cubemap.height, cubemap.height, 
@@ -144,4 +146,4 @@ static void RenderCubemap ()
     {
         ScriptableWizard.DisplayWizard("Bake CubeMap", typeof(BakeStaticCubemap),"Bake!");
     }
-}
+}
diff --git a/BakeStaticCubemap.cs b/BakeStaticCubemap.cs
@@ -0,0 +1,147 @@
+/*
+* This confidential and proprietary software may be used only as
+* authorised by a licensing agreement from ARM Limited
+* (C) COPYRIGHT 2014 ARM Limited
+* ALL RIGHTS RESERVED
+* The entire notice above must be reproduced on all authorised
+* copies and copies may only be made to the extent permitted
+* by a licensing agreement from ARM Limited.
+*/
+
+using UnityEngine;
+using UnityEditor;
+using System.IO;
+
+/**
+* This script must be placed in the Editor folder.
+* The script renders the scene into a cubemap and optionally
+* saves each cubemap image individually.
+* The script is available in the Editor mode from the 
+ * Game Object menu as "Bake Cubemap" option.
+* Be sure the camera far plane is enough to render the scene.
+*/
+
+public class BakeStaticCubemap : ScriptableWizard
+{
+
+    public Transform renderPosition;
+    public Cubemap cubemap;
+    // Camera settings.
+    public int cameraDepth = 24;
+    public LayerMask cameraLayerMask = -1;
+    public Color cameraBackgroundColor;
+    public float cameraNearPlane = 0.1f;
+    public float cameraFarPlane = 2500.0f;
+    public bool cameraUseOcclusion = true;
+    // Cubemap settings.
+    public FilterMode cubemapFilterMode = FilterMode.Trilinear;
+    // Quality settings.
+    public int antiAliasing = 4;
+
+    public bool createIndividualImages = false;
+
+    // The folder where individual cubemap images will be saved
+    static string imageDirectory = "Assets/CubemapImages";
+    static string[] cubemapImage
+         = new string[]{"front+Z", "right+X", "back-Z", "left-X", "top+Y", "bottom-Y"};
+           static Vector3[] eulerAngles = new Vector3[]{new Vector3(0.0f,0.0f,0.0f),
+           new Vector3(0.0f,-90.0f,0.0f), new Vector3(0.0f,180.0f,0.0f), 
+           new Vector3(0.0f,90.0f,0.0f), new Vector3(-90.0f,0.0f,0.0f), 
+           new Vector3(90.0f,0.0f,0.0f)};
+
+    void OnWizardUpdate()
+    {
+        helpString = "Set the position to render from and the cubemap to bake.";
+        if(renderPosition != null && cubemap != null)
+        {
+            isValid = true;
+        }
+        else
+        {
+            isValid = false;
+        }
+    }
+
+    void OnWizardCreate ()
+    {
+
+        // Create temporary camera for rendering.
+        GameObject go = new GameObject( "CubemapCam", typeof(Camera) );
+        // Camera settings. 
+        go.camera.depth = cameraDepth;
+        go.camera.backgroundColor = cameraBackgroundColor;
+        go.camera.cullingMask = cameraLayerMask;
+        go.camera.nearClipPlane = cameraNearPlane;
+        go.camera.farClipPlane = cameraFarPlane;
+        go.camera.useOcclusionCulling = cameraUseOcclusion;
+        // Cubemap settings
+        cubemap.filterMode = cubemapFilterMode;
+        // Set antialiasing
+        QualitySettings.antiAliasing = antiAliasing;
+
+        // Place the camera on the render position.
+        go.transform.position = renderPosition.position;
+        go.transform.rotation = Quaternion.identity;
+
+        // Bake the cubemap
+        go.camera.RenderToCubemap(cubemap);
+
+        // Rendering individual images
+        if(createIndividualImages)
+        {
+            if (!Directory.Exists(imageDirectory))
+            {
+                Directory.CreateDirectory(imageDirectory);
+            }
+
+            RenderIndividualCubemapImages(go);
+        }
+
+
+        // Destroy the camera after rendering.
+        DestroyImmediate(go);
+    }
+
+    void RenderIndividualCubemapImages(GameObject go)
+    {
+        go.camera.backgroundColor = Color.black;
+        go.camera.clearFlags = CameraClearFlags.Skybox;
+        go.camera.fieldOfView = 90;    
+        go.camera.aspect = 1.0f;
+
+        go.transform.rotation = Quaternion.identity;
+
+        //Render individual images        
+        for (int camOrientation = 0; camOrientation < eulerAngles.Length ; camOrientation++)
+        {
+            string imageName = Path.Combine(imageDirectory, cubemap.name + "_"
+                    + cubemapImage[camOrientation] + ".png");
+            go.camera.transform.eulerAngles = eulerAngles[camOrientation];
+            RenderTexture renderTex = new RenderTexture(cubemap.height, 
+                    cubemap.height, cameraDepth);
+            go.camera.targetTexture = renderTex;
+            go.camera.Render();
+            RenderTexture.active = renderTex;
+
+            Texture2D img = new Texture2D(cubemap.height, cubemap.height, 
+                    TextureFormat.RGB24, false);
+            img.ReadPixels(new Rect(0, 0, cubemap.height, cubemap.height), 0, 0); 
+
+            RenderTexture.active = null;
+            GameObject.DestroyImmediate(renderTex);
+
+            byte[] imgBytes = img.EncodeToPNG(); 
+            File.WriteAllBytes(imageName, imgBytes);
+
+            AssetDatabase.ImportAsset(imageName, ImportAssetOptions.ForceUpdate);
+        }
+
+        AssetDatabase.Refresh();
+    }
+
+    [MenuItem("GameObject/Bake Cubemap")]
+    static void RenderCubemap ()
+    {
+        ScriptableWizard.DisplayWizard("Bake CubeMap", typeof(BakeStaticCubemap),"Bake!");
+    }
+}
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