fix for NPE when being called from CombinedTexture with null baseImage (#1146)

* fix for NPE when being called from CombinedTexture with null baseImage

* formating only

jme3-blender/src/main/java/com/jme3/scene/plugins/blender/textures/blending/TextureBlenderAWT.java

@@ -143,7 +143,13 @@ public class TextureBlenderAWT extends AbstractTextureBlender {
             dataArray.add(newData);
         }
         
-        ColorSpace colorSpace = baseImage.getColorSpace() != null ? baseImage.getColorSpace() : ColorSpace.Linear;
+        ColorSpace colorSpace;
+        if (baseImage != null) {
+            colorSpace = baseImage.getColorSpace() != null ? baseImage.getColorSpace() : ColorSpace.Linear;
+        } else {
+            colorSpace = image.getColorSpace();
+        }
+        
         Image result = depth > 1 ? new Image(Format.RGBA8, width, height, depth, dataArray, colorSpace) : new Image(Format.RGBA8, width, height, dataArray.get(0), colorSpace);
         if (image.getMipMapSizes() != null) {
             result.setMipMapSizes(image.getMipMapSizes().clone());