diff --git a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.frag b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.frag
index 31f49d6e5b..8ffbceca20 100644
--- a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.frag
+++ b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.frag
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform vec4 m_Color;
 
 void main() { 
diff --git a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.j3md b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.j3md
index bea82f0da0..73c71ac47d 100644
--- a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.j3md
+++ b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.j3md
@@ -5,8 +5,8 @@ MaterialDef Default GUI {
     }
 
     Technique {
-        VertexShader GLSL100:   Common/MatDefs/Nifty/NiftyQuad.vert
-        FragmentShader GLSL100: Common/MatDefs/Nifty/NiftyQuad.frag
+        VertexShader GLSL100 GLSL150:   Common/MatDefs/Nifty/NiftyQuad.vert
+        FragmentShader GLSL100 GLSL150: Common/MatDefs/Nifty/NiftyQuad.frag
 
         WorldParameters {
             WorldViewProjectionMatrix
diff --git a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.vert b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.vert
index 1eb1616c29..2e23fd25b3 100644
--- a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.vert
+++ b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuad.vert
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform mat4 g_WorldViewProjectionMatrix;
 
 attribute vec4 inPosition;
diff --git a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.frag b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.frag
index 1f0a645e56..f9eb8baa0e 100644
--- a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.frag
+++ b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.frag
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 varying vec4 color;
 
 void main() { 
diff --git a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.j3md b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.j3md
index 9412ba3808..ca351d8ea7 100644
--- a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.j3md
+++ b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.j3md
@@ -4,8 +4,8 @@ MaterialDef Default GUI {
     }
 
     Technique {
-        VertexShader GLSL100:   Common/MatDefs/Nifty/NiftyQuadGrad.vert
-        FragmentShader GLSL100: Common/MatDefs/Nifty/NiftyQuadGrad.frag
+        VertexShader GLSL100 GLSL150:   Common/MatDefs/Nifty/NiftyQuadGrad.vert
+        FragmentShader GLSL100 GLSL150: Common/MatDefs/Nifty/NiftyQuadGrad.frag
 
         WorldParameters {
             WorldViewProjectionMatrix
diff --git a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.vert b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.vert
index e62b2b4cb1..c514a2c70f 100644
--- a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.vert
+++ b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyQuadGrad.vert
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform mat4 g_WorldViewProjectionMatrix;
 
 attribute vec4 inPosition;
diff --git a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.frag b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.frag
index b2b4b95d6a..e333114c65 100644
--- a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.frag
+++ b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.frag
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform sampler2D m_Texture;
 uniform vec4 m_Color; 
 
diff --git a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.j3md b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.j3md
index 8d3b919981..e1d26494b8 100644
--- a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.j3md
+++ b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.j3md
@@ -6,8 +6,8 @@ MaterialDef Default GUI {
     }
 
     Technique {
-        VertexShader GLSL100:   Common/MatDefs/Nifty/NiftyTex.vert
-        FragmentShader GLSL100: Common/MatDefs/Nifty/NiftyTex.frag
+        VertexShader GLSL100 GLSL150:   Common/MatDefs/Nifty/NiftyTex.vert
+        FragmentShader GLSL100 GLSL150: Common/MatDefs/Nifty/NiftyTex.frag
 
         WorldParameters {
             WorldViewProjectionMatrix
diff --git a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.vert b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.vert
index c5c3dc1b35..1a7f8499ba 100644
--- a/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.vert
+++ b/jme3-niftygui/src/main/resources/Common/MatDefs/Nifty/NiftyTex.vert
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform mat4 g_WorldViewProjectionMatrix;
 
 attribute vec4 inPosition;
diff --git a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.frag b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.frag
index b0b594c624..d19d8aec99 100644
--- a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.frag
+++ b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.frag
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform vec3 m_region1;
 uniform vec3 m_region2;
 uniform vec3 m_region3;
diff --git a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.j3md b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.j3md
index cf75cc5e46..e8ec3589b3 100644
--- a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.j3md
+++ b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.j3md
@@ -25,8 +25,8 @@ MaterialDef Terrain {
 	}
 
 	Technique {
-		VertexShader GLSL100:   Common/MatDefs/Terrain/HeightBasedTerrain.vert
-		FragmentShader GLSL100: Common/MatDefs/Terrain/HeightBasedTerrain.frag
+		VertexShader GLSL100 GLSL150:   Common/MatDefs/Terrain/HeightBasedTerrain.vert
+		FragmentShader GLSL100 GLSL150: Common/MatDefs/Terrain/HeightBasedTerrain.frag
 
 		WorldParameters {
 			WorldViewProjectionMatrix
diff --git a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.vert b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.vert
index 8260d8f72d..60f57f0782 100644
--- a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.vert
+++ b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/HeightBasedTerrain.vert
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform float m_tilingFactor;
 uniform mat4 g_WorldViewProjectionMatrix;
 uniform mat4 g_WorldMatrix;
diff --git a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/SPTerrainLighting.frag b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/SPTerrainLighting.frag
index ac59e19cf3..426b665e94 100644
--- a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/SPTerrainLighting.frag
+++ b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/SPTerrainLighting.frag
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 #import "Common/ShaderLib/BlinnPhongLighting.glsllib"
 #import "Common/ShaderLib/Lighting.glsllib"
 
diff --git a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/SPTerrainLighting.vert b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/SPTerrainLighting.vert
index 78036c93cc..497f06b90c 100644
--- a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/SPTerrainLighting.vert
+++ b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/SPTerrainLighting.vert
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform mat4 g_WorldViewProjectionMatrix;
 uniform mat4 g_WorldViewMatrix;
 uniform mat3 g_NormalMatrix;
diff --git a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.frag b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.frag
index 7ae56cb4fd..ba7fac48f0 100644
--- a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.frag
+++ b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.frag
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform sampler2D m_Alpha;
 uniform sampler2D m_Tex1;
 uniform sampler2D m_Tex2;
diff --git a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.j3md b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.j3md
index 0f12dac703..98fe3eb9e7 100644
--- a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.j3md
+++ b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.j3md
@@ -15,8 +15,8 @@ MaterialDef Terrain {
 	}
 
 	Technique {
-		VertexShader GLSL100:   Common/MatDefs/Terrain/Terrain.vert
-		FragmentShader GLSL100: Common/MatDefs/Terrain/Terrain.frag
+		VertexShader GLSL100 GLSL150:   Common/MatDefs/Terrain/Terrain.vert
+		FragmentShader GLSL100 GLSL150: Common/MatDefs/Terrain/Terrain.frag
 		
 		WorldParameters {
 			WorldViewProjectionMatrix
diff --git a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.vert b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.vert
index ddb40a9f4d..4ac2736bf4 100644
--- a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.vert
+++ b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/Terrain.vert
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform mat4 g_WorldViewProjectionMatrix;
 
 attribute vec3 inPosition;
diff --git a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.frag b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.frag
index 9ce272fb73..f2ca013fc7 100644
--- a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.frag
+++ b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.frag
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 #import "Common/ShaderLib/BlinnPhongLighting.glsllib"
 #import "Common/ShaderLib/Lighting.glsllib"
 
diff --git a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.j3md b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.j3md
index 0d62d901fb..353ff4e627 100644
--- a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.j3md
+++ b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.j3md
@@ -108,8 +108,8 @@ MaterialDef Terrain Lighting {
 
         LightMode MultiPass
 
-        VertexShader GLSL100:   Common/MatDefs/Terrain/TerrainLighting.vert
-        FragmentShader GLSL100: Common/MatDefs/Terrain/TerrainLighting.frag
+        VertexShader GLSL100 GLSL150:   Common/MatDefs/Terrain/TerrainLighting.vert
+        FragmentShader GLSL100 GLSL150: Common/MatDefs/Terrain/TerrainLighting.frag
 
         WorldParameters {
             WorldViewProjectionMatrix
@@ -173,8 +173,8 @@ MaterialDef Terrain Lighting {
 
         LightMode SinglePass
 
-        VertexShader GLSL100:   Common/MatDefs/Terrain/SPTerrainLighting.vert
-        FragmentShader GLSL100: Common/MatDefs/Terrain/SPTerrainLighting.frag
+        VertexShader GLSL100 GLSL150:   Common/MatDefs/Terrain/SPTerrainLighting.vert
+        FragmentShader GLSL100 GLSL150: Common/MatDefs/Terrain/SPTerrainLighting.frag
 
         WorldParameters {
             WorldViewProjectionMatrix
@@ -236,8 +236,8 @@ MaterialDef Terrain Lighting {
 
     Technique PreShadow {
 
-        VertexShader GLSL100 :   Common/MatDefs/Shadow/PreShadow.vert
-        FragmentShader GLSL100 : Common/MatDefs/Shadow/PreShadow.frag
+        VertexShader GLSL100 GLSL150:   Common/MatDefs/Shadow/PreShadow.vert
+        FragmentShader GLSL100 GLSL150: Common/MatDefs/Shadow/PreShadow.frag
 
         WorldParameters {
             WorldViewProjectionMatrix
@@ -260,8 +260,8 @@ MaterialDef Terrain Lighting {
 
   Technique PreNormalPass {
 
-        VertexShader GLSL100 :   Common/MatDefs/SSAO/normal.vert
-        FragmentShader GLSL100 : Common/MatDefs/SSAO/normal.frag
+        VertexShader GLSL100 GLSL150:   Common/MatDefs/SSAO/normal.vert
+        FragmentShader GLSL100 GLSL150: Common/MatDefs/SSAO/normal.frag
 
         WorldParameters {
             WorldViewProjectionMatrix
@@ -283,8 +283,8 @@ MaterialDef Terrain Lighting {
 
     Technique Glow {
 
-        VertexShader GLSL100:   Common/MatDefs/Misc/Unshaded.vert
-        FragmentShader GLSL100: Common/MatDefs/Light/Glow.frag
+        VertexShader GLSL100 GLSL150:   Common/MatDefs/Misc/Unshaded.vert
+        FragmentShader GLSL100 GLSL150: Common/MatDefs/Light/Glow.frag
 
         WorldParameters {
             WorldViewProjectionMatrix
diff --git a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.vert b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.vert
index e03f03f7ff..04ddbe5a20 100644
--- a/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.vert
+++ b/jme3-terrain/src/main/resources/Common/MatDefs/Terrain/TerrainLighting.vert
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 #import "Common/ShaderLib/Lighting.glsllib"
 
 uniform mat4 g_WorldViewProjectionMatrix;
diff --git a/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR.frag b/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR.frag
index 03a81aa322..9d61ca057e 100644
--- a/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR.frag
+++ b/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR.frag
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform sampler2D m_Texture;
 
 varying vec2 UVred;
diff --git a/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR.vert b/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR.vert
index 080df41a1a..734a097e29 100644
--- a/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR.vert
+++ b/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR.vert
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 attribute vec4 inPosition;
 
 attribute vec2 inTexCoord;   // m_inUVred
diff --git a/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR15.frag b/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR15.frag
index f5d6e7da01..20d195c490 100644
--- a/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR15.frag
+++ b/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR15.frag
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 uniform sampler2D m_Texture;
 
 in vec2 UVred;
diff --git a/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR15.vert b/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR15.vert
index b8627c0320..e0c17a91b1 100644
--- a/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR15.vert
+++ b/jme3-vr/src/main/resources/Common/MatDefs/VR/OpenVR15.vert
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 in vec4 inPosition;
 
 in vec2 inTexCoord;   // m_inUVred
diff --git a/jme3-vr/src/main/resources/Common/MatDefs/VR/PostShadowFilter.frag b/jme3-vr/src/main/resources/Common/MatDefs/VR/PostShadowFilter.frag
index 09b4c9fb9c..c940462d8a 100644
--- a/jme3-vr/src/main/resources/Common/MatDefs/VR/PostShadowFilter.frag
+++ b/jme3-vr/src/main/resources/Common/MatDefs/VR/PostShadowFilter.frag
@@ -1,3 +1,4 @@
+#import "Common/ShaderLib/GLSLCompat.glsllib"
 #import "Common/ShaderLib/MultiSample.glsllib"
 #import "Common/ShaderLib/Shadows.glsllib"