diff --git a/jme3-core/src/main/java/com/jme3/shader/ShaderGenerator.java b/jme3-core/src/main/java/com/jme3/shader/ShaderGenerator.java
index d42dccf17..9d231cea8 100644
--- a/jme3-core/src/main/java/com/jme3/shader/ShaderGenerator.java
+++ b/jme3-core/src/main/java/com/jme3/shader/ShaderGenerator.java
@@ -59,7 +59,7 @@ public abstract class ShaderGenerator {
     /**
      * the technique def to use for the shader generation
      */
-    protected TechniqueDef techniqueDef = null;    
+    protected TechniqueDef techniqueDef = null;
 
     /**
      * Build a shaderGenerator
@@ -67,16 +67,18 @@ public abstract class ShaderGenerator {
      * @param assetManager
      */
     protected ShaderGenerator(AssetManager assetManager) {
-        this.assetManager = assetManager;        
+        this.assetManager = assetManager;
     }
-    
-    public void initialize(TechniqueDef techniqueDef){
+
+    public void initialize(TechniqueDef techniqueDef) {
         this.techniqueDef = techniqueDef;
     }
-    
+
     /**
      * Generate vertex and fragment shaders for the given technique
      *
+     * @param definesSourceCode Defines to include alongside the shader. May be
+     * null.
      * @return a Shader program
      */
     public Shader generateShader(String definesSourceCode) {
@@ -94,13 +96,13 @@ public abstract class ShaderGenerator {
             String extension = type.getExtension();
             String language = getLanguageAndVersion(type);
             String shaderSourceCode = buildShader(techniqueDef.getShaderNodes(), info, type);
-            
+
             if (shaderSourceCode != null) {
                 String shaderSourceAssetName = techniqueName + "." + extension;
                 shader.addSource(type, shaderSourceAssetName, shaderSourceCode, definesSourceCode, language);
             }
         }
-        
+
         techniqueDef = null;
         return shader;
     }
@@ -114,14 +116,14 @@ public abstract class ShaderGenerator {
      * @return the code of the generated vertex shader
      */
     protected String buildShader(List<ShaderNode> shaderNodes, ShaderGenerationInfo info, ShaderType type) {
-        if (type == ShaderType.TessellationControl ||
-            type == ShaderType.TessellationEvaluation || 
-            type == ShaderType.Geometry) {
+        if (type == ShaderType.TessellationControl
+                || type == ShaderType.TessellationEvaluation
+                || type == ShaderType.Geometry) {
             // TODO: Those are not supported.
             // Too much code assumes that type is either Vertex or Fragment
             return null;
         }
-        
+
         indent = 0;
 
         StringBuilder sourceDeclaration = new StringBuilder();
@@ -192,8 +194,8 @@ public abstract class ShaderGenerator {
         if (loadedSource.length() > 1) {
             loadedSource = loadedSource.substring(0, loadedSource.lastIndexOf("}"));
             String[] sourceParts = loadedSource.split("\\s*void\\s*main\\s*\\(\\s*\\)\\s*\\{");
-            if(sourceParts.length<2){
-                throw new IllegalArgumentException("Syntax error in "+ shaderPath +". Cannot find 'void main(){' in \n"+ loadedSource);
+            if (sourceParts.length < 2) {
+                throw new IllegalArgumentException("Syntax error in " + shaderPath + ". Cannot find 'void main(){' in \n" + loadedSource);
             }
             generateDeclarativeSection(sourceDeclaration, shaderNode, sourceParts[0], info);
             generateNodeMainSection(source, shaderNode, sourceParts[1], info);
@@ -250,7 +252,7 @@ public abstract class ShaderGenerator {
      *
      * @see ShaderNode#getDefinition()
      * @see ShaderNodeDefinition#getType()
-     * 
+     *
      * @param nodeDecalarationSource the declaration part of the node
      * @param source the StringBuilder to append generated code.
      * @param shaderNode the shaderNode.
@@ -319,5 +321,5 @@ public abstract class ShaderGenerator {
             }
         }
         return index;
-    }    
+    }
 }
diff --git a/sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/EditableMatDefFile.java b/sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/EditableMatDefFile.java
index 73797cadc..625ae45b9 100644
--- a/sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/EditableMatDefFile.java
+++ b/sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/EditableMatDefFile.java
@@ -62,8 +62,8 @@ public class EditableMatDefFile {
     private MaterialDef materialDef;
     private ProjectAssetManager assetManager;
     private ShaderGenerator glsl100;
-    private ShaderGenerator glsl150;    
-    private final static String GLSL100 = "GLSL100";    
+    private ShaderGenerator glsl150;
+    private final static String GLSL100 = "GLSL100";
     private Lookup lookup;
     private boolean loaded = false;
     private boolean dirty = false;
@@ -97,7 +97,7 @@ public class EditableMatDefFile {
         }
         FileLock lock = null;
         InputStream in = null;
-        boolean matParseError = false;        
+        boolean matParseError = false;
         try {
             lock = matDefFile.lock();
             in = obj.getPrimaryFile().getInputStream();
@@ -134,7 +134,7 @@ public class EditableMatDefFile {
             }
         }
         if (materialDef != null && !matParseError) {
-            if(currentTechnique == null){
+            if (currentTechnique == null) {
                 currentTechnique = matDefStructure.getTechniques().get(0);
             }
             registerListener(matDefStructure);
@@ -172,11 +172,11 @@ public class EditableMatDefFile {
             material.selectTechnique(currentTechnique.getName(), SceneApplication.getApplication().getRenderManager());
             Shader s;
             if (version.equals(GLSL100)) {
-                glsl100.initialize(material.getActiveTechnique());
-                s = glsl100.generateShader();
+                glsl100.initialize(material.getActiveTechnique().getDef());
+                s = glsl100.generateShader(null);
             } else {
-                glsl150.initialize(material.getActiveTechnique());
-                s = glsl150.generateShader();
+                glsl150.initialize(material.getActiveTechnique().getDef());
+                s = glsl150.generateShader(null);
             }
             for (Shader.ShaderSource source : s.getSources()) {
                 if (source.getType() == type) {
@@ -193,8 +193,8 @@ public class EditableMatDefFile {
     public TechniqueBlock getCurrentTechnique() {
         return currentTechnique;
     }
-    
-    public void setCurrentTechnique(TechniqueBlock tech){
+
+    public void setCurrentTechnique(TechniqueBlock tech) {
         this.currentTechnique = tech;
     }
 
@@ -318,10 +318,10 @@ public class EditableMatDefFile {
             NbDocument.runAtomicAsUser(ec.getDocument(), new Runnable() {
                 public void run() {
                     try {
-                    doc.remove(0, doc.getLength());
-                    doc.insertString(doc.getLength(),
-                    matDefStructure.toString(),
-                    SimpleAttributeSet.EMPTY);
+                        doc.remove(0, doc.getLength());
+                        doc.insertString(doc.getLength(),
+                                matDefStructure.toString(),
+                                SimpleAttributeSet.EMPTY);
                     } catch (BadLocationException e) {
                         exc[0] = e;
                     }
@@ -343,8 +343,8 @@ public class EditableMatDefFile {
         }
         updateLookupWithMaterialData(obj);
     }
-    
-    public void cleanup(){
+
+    public void cleanup() {
         if (matDefStructure != null) {
             obj.getLookupContents().remove(matDefStructure);
             matDefStructure = null;
@@ -358,7 +358,7 @@ public class EditableMatDefFile {
             matToRemove = material;
             material = null;
         }
-        
+
         setCurrentTechnique(null);
         setLoaded(false);
     }