nightly

dist/preview release/babylon.max.js

@@ -43464,6 +43464,9 @@ var BABYLON;
             }
             _this.isCube = true;
             _this._textureMatrix = BABYLON.Matrix.Identity();
+            if (prefiltered) {
+                _this.gammaSpace = false;
+            }
             return _this;
         }
         CubeTexture.CreateFromImages = function (files, scene, noMipmap) {

dist/preview release/customConfigurations/minimalViewer/babylon.max.js

@@ -31349,6 +31349,9 @@ var BABYLON;
             }
             _this.isCube = true;
             _this._textureMatrix = BABYLON.Matrix.Identity();
+            if (prefiltered) {
+                _this.gammaSpace = false;
+            }
             return _this;
         }
         CubeTexture.CreateFromImages = function (files, scene, noMipmap) {

src/Materials/Textures/babylon.cubeTexture.ts

@@ -73,6 +73,10 @@
             this.isCube = true;
 
             this._textureMatrix = Matrix.Identity();
+
+            if (prefiltered) {
+                this.gammaSpace = false;
+            }
         }
 
         // Methods