diff --git a/scripts/initLayers.py b/scripts/initLayers.py
index ba55f8f..e4c0bf0 100755
--- a/scripts/initLayers.py
+++ b/scripts/initLayers.py
@@ -85,7 +85,11 @@ void InitLayers( RegalContext * ctx ) {
     out.write( "    layer = constr( ctx );\n" )
     out.write( "    bool success = layer->Initialize( \"%s\" );\n" % instInf )
     out.write( "    if( success ) {\n" )
+    out.write( "      Info(\"%s initialization succeeded.\");\n" % c )
     out.write( "      ctx->layer.push_back( layer );\n" )
+    out.write( "    } else {\n" )
+    out.write( "      Info(\"%s initialization failed.\");\n" % c )
+    out.write( "      delete layer;\n" )
     out.write( "    }\n" )
     out.write( "  }\n" )
 
diff --git a/scripts/regal/RegalDispatch.py b/scripts/regal/RegalDispatch.py
index a119da9..ae377b7 100755
--- a/scripts/regal/RegalDispatch.py
+++ b/scripts/regal/RegalDispatch.py
@@ -199,6 +199,7 @@ REGAL_NAMESPACE_BEGIN
 struct Layer {
 
   Layer( RegalContext * context ) : ctx( context ) {}
+  virtual ~Layer() {}
   RegalContext * GetContext() { return ctx; }
   virtual std::string GetName() const = 0;
   virtual bool Initialize( const std::string & instanceInfo ) = 0;
diff --git a/src/regal/RegalDispatch.h b/src/regal/RegalDispatch.h
index 1ee184f..de4606a 100644
--- a/src/regal/RegalDispatch.h
+++ b/src/regal/RegalDispatch.h
@@ -55,6 +55,7 @@ REGAL_NAMESPACE_BEGIN
 struct Layer {
 
   Layer( RegalContext * context ) : ctx( context ) {}
+  virtual ~Layer() {}
   RegalContext * GetContext() { return ctx; }
   virtual std::string GetName() const = 0;
   virtual bool Initialize( const std::string & instanceInfo ) = 0;
diff --git a/src/regal/RegalInitLayers.cpp b/src/regal/RegalInitLayers.cpp
index 0802eca..d0d51cc 100644
--- a/src/regal/RegalInitLayers.cpp
+++ b/src/regal/RegalInitLayers.cpp
@@ -65,7 +65,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createLog initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createLog initialization failed.");
+      delete layer;
     }
   }
   constr = createFilt;
@@ -73,7 +77,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createFilt initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createFilt initialization failed.");
+      delete layer;
     }
   }
   constr = createTexC;
@@ -81,7 +89,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createTexC initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createTexC initialization failed.");
+      delete layer;
     }
   }
   constr = createVao;
@@ -89,7 +101,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createVao initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createVao initialization failed.");
+      delete layer;
     }
   }
   constr = createDsa;
@@ -97,7 +113,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createDsa initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createDsa initialization failed.");
+      delete layer;
     }
   }
   constr = createSo;
@@ -105,7 +125,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createSo initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createSo initialization failed.");
+      delete layer;
     }
   }
   constr = createQuads;
@@ -113,7 +137,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createQuads initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createQuads initialization failed.");
+      delete layer;
     }
   }
   constr = createIff;
@@ -121,7 +149,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createIff initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createIff initialization failed.");
+      delete layer;
     }
   }
   constr = createTexSto;
@@ -129,7 +161,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createTexSto initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createTexSto initialization failed.");
+      delete layer;
     }
   }
   constr = createBaseVertex;
@@ -137,7 +173,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createBaseVertex initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createBaseVertex initialization failed.");
+      delete layer;
     }
   }
   constr = createPpca;
@@ -145,7 +185,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createPpca initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createPpca initialization failed.");
+      delete layer;
     }
   }
   constr = createPpa;
@@ -153,7 +197,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createPpa initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createPpa initialization failed.");
+      delete layer;
     }
   }
   constr = createHint;
@@ -161,7 +209,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createHint initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createHint initialization failed.");
+      delete layer;
     }
   }
   constr = createObj;
@@ -169,7 +221,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createObj initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createObj initialization failed.");
+      delete layer;
     }
   }
   constr = createHttp;
@@ -177,7 +233,11 @@ void InitLayers( RegalContext * ctx ) {
     layer = constr( ctx );
     bool success = layer->Initialize( "" );
     if( success ) {
+      Info("createHttp initialization succeeded.");
       ctx->layer.push_back( layer );
+    } else {
+      Info("createHttp initialization failed.");
+      delete layer;
     }
   }
 
diff --git a/src/regal/layer/bv/BaseVertex.h b/src/regal/layer/bv/BaseVertex.h
index bbe3200..5ba5315 100644
--- a/src/regal/layer/bv/BaseVertex.h
+++ b/src/regal/layer/bv/BaseVertex.h
@@ -77,7 +77,18 @@ namespace Emu {
   }
   
   virtual bool Initialize( const std::string & instanceInfo ) {
-    ResetInterception();
+    RegalContext * ctx = GetContext();
+    orig.Initialize( ctx->dispatchGL );
+    
+    bool from_core = ctx->info->gl_version_3_2;
+    bool from_ext = ctx->info->gl_arb_draw_elements_base_vertex;
+    bool emulationNeeded = from_core == false && from_ext == false;
+
+    if( emulationNeeded == false ) {
+      return false;
+    }
+    
+    BaseVertexIntercept( this, ctx->dispatchGL );
     return true;
   }
 
diff --git a/src/regal/layer/error/ErrorProcs.cpp b/src/regal/layer/error/ErrorProcs.cpp
index 378f527..7fb36e1 100644
--- a/src/regal/layer/error/ErrorProcs.cpp
+++ b/src/regal/layer/error/ErrorProcs.cpp
@@ -1,5 +1,5 @@
 /* NOTE: Do not edit this file, it is generated by a script:
-   Err.py --api gl 4.4 --api wgl 4.4 --api glx 4.4 --api cgl 1.4 --api egl 1.0 --outdir .
+   Export.py --api gl 4.4 --api wgl 4.4 --api glx 4.4 --api cgl 1.4 --api egl 1.0 --outdir .
 */
 
 /*
diff --git a/src/regal/layer/hint/Hint.h b/src/regal/layer/hint/Hint.h
index 4df2561..d646f19 100644
--- a/src/regal/layer/hint/Hint.h
+++ b/src/regal/layer/hint/Hint.h
@@ -88,8 +88,8 @@ struct Hint : public Layer
     RegalContext * ctx = GetContext();
     orig.Initialize( ctx->dispatchGL );
     // check whether we can init
-    bool canInit = true;
-    if( canInit == false ) {
+    bool emulationNeeded = ctx->info->es2;
+    if( emulationNeeded == false ) {
       return false;
     }
     HintIntercept( this, ctx->dispatchGL );
diff --git a/src/regal/layer/http/HttpProcs.cpp b/src/regal/layer/http/HttpProcs.cpp
index 2e02eb0..ec0e160 100644
--- a/src/regal/layer/http/HttpProcs.cpp
+++ b/src/regal/layer/http/HttpProcs.cpp
@@ -1,5 +1,5 @@
 /* NOTE: Do not edit this file, it is generated by a script:
-   H.py --api gl 4.4 --api wgl 4.4 --api glx 4.4 --api cgl 1.4 --api egl 1.0 --outdir .
+   Export.py --api gl 4.4 --api wgl 4.4 --api glx 4.4 --api cgl 1.4 --api egl 1.0 --outdir .
 */
 
 /*
diff --git a/src/regal/layer/iff/Iff.cpp b/src/regal/layer/iff/Iff.cpp
index 54f170f..9bbab44 100644
--- a/src/regal/layer/iff/Iff.cpp
+++ b/src/regal/layer/iff/Iff.cpp
@@ -3381,6 +3381,14 @@ namespace Emu
     
     orig.Initialize( ctx.dispatchGL );
     instProcs.Initialize( ctx.dispatchGL );
+    bool emulationNeeded = ctx.info->es2 || ctx.info->core;
+    bool has_glsl = (   ctx.info->gl_version_major >= 2
+                     || ctx.info->gles_version_major >= 2 );
+    bool has_vao = ctx.emuInfo->gl_arb_vertex_array_object;
+    bool emulationSupported = has_glsl && has_vao;
+    if( emulationNeeded == false || emulationSupported == false ) {
+      return false;
+    }
     IffIntercept( this, ctx.dispatchGL );
     
     shadowMatrixMode = GL_MODELVIEW;
diff --git a/src/regal/layer/loader/LoaderProcs.cpp b/src/regal/layer/loader/LoaderProcs.cpp
index 74f26b6..b5ed6de 100644
--- a/src/regal/layer/loader/LoaderProcs.cpp
+++ b/src/regal/layer/loader/LoaderProcs.cpp
@@ -1,5 +1,5 @@
 /* NOTE: Do not edit this file, it is generated by a script:
-   L.py --api gl 4.4 --api wgl 4.4 --api glx 4.4 --api cgl 1.4 --api egl 1.0 --outdir .
+   Export.py --api gl 4.4 --api wgl 4.4 --api glx 4.4 --api cgl 1.4 --api egl 1.0 --outdir .
 */
 
 /*
diff --git a/src/regal/layer/log/LogProcs.cpp b/src/regal/layer/log/LogProcs.cpp
index ad053ea..bb4bea5 100644
--- a/src/regal/layer/log/LogProcs.cpp
+++ b/src/regal/layer/log/LogProcs.cpp
@@ -1,5 +1,5 @@
 /* NOTE: Do not edit this file, it is generated by a script:
-   Log.py --api gl 4.4 --api wgl 4.4 --api glx 4.4 --api cgl 1.4 --api egl 1.0 --outdir .
+   Export.py --api gl 4.4 --api wgl 4.4 --api glx 4.4 --api cgl 1.4 --api egl 1.0 --outdir .
 */
 
 /*
diff --git a/src/regal/layer/ppa/Ppa.h b/src/regal/layer/ppa/Ppa.h
index 498f938..eb9144d 100644
--- a/src/regal/layer/ppa/Ppa.h
+++ b/src/regal/layer/ppa/Ppa.h
@@ -79,6 +79,10 @@ struct Ppa : public Layer, public State::Stencil, State::Depth, State::Polygon,
   {
     RegalContext &ctx = *GetContext();
     orig.Initialize( ctx.dispatchGL );
+    bool emulationNeeded = ctx.info->compat == false;
+    if( emulationNeeded == false ) {
+      return false;
+    }
     PpaIntercept( this, ctx.dispatchGL );
     activeTextureUnit = 0;
 
diff --git a/src/regal/layer/ppca/Ppca.h b/src/regal/layer/ppca/Ppca.h
index 13cf0ad..230fc1f 100644
--- a/src/regal/layer/ppca/Ppca.h
+++ b/src/regal/layer/ppca/Ppca.h
@@ -78,7 +78,13 @@ struct Ppca : public Layer, public ClientState::VertexArray, ClientState::PixelS
   
   virtual bool Initialize( const std::string & instanceInfo )
   {
-    ResetInterception();
+    RegalContext * ctx = GetContext();
+    orig.Initialize( ctx->dispatchGL );
+    bool emulationNeeded = ctx->info->es1 || ctx->info->es2 || ctx->info->core;
+    if( emulationNeeded == false ) {
+      return false;
+    }
+    PpcaIntercept( this, ctx->dispatchGL );
     Reset();
     return true;
   }
diff --git a/src/regal/layer/quads/Quads.cpp b/src/regal/layer/quads/Quads.cpp
index f231e72..4879c14 100644
--- a/src/regal/layer/quads/Quads.cpp
+++ b/src/regal/layer/quads/Quads.cpp
@@ -102,7 +102,10 @@ namespace Emu
     RegalContext * ctx = GetContext();
     orig.Initialize( ctx->dispatchGL );
     // if not supported, return false here
-    
+    bool emulationNeeded = ctx->info->es1 || ctx->info->es2 || ctx->info->core;
+    if( emulationNeeded == false ) {
+      return false;
+    }
     QuadsIntercept( this, ctx->dispatchGL );
     elementArrayBuffer = 0;
     RglGenBuffers( orig, 1, &quadIndexBuffer);
diff --git a/src/regal/layer/rect/Rect.h b/src/regal/layer/rect/Rect.h
index cfb61f4..68bc2da 100644
--- a/src/regal/layer/rect/Rect.h
+++ b/src/regal/layer/rect/Rect.h
@@ -89,7 +89,13 @@ namespace Emu {
     virtual std::string GetName() const { return "rect"; }
     
     virtual bool Initialize( const std::string & instanceInfo ) {
-      ResetInterception();
+      RegalContext * ctx = GetContext();
+      orig.Initialize( ctx->dispatchGL );
+      bool emulationNeeded = ctx->info->es1 || ctx->info->es2 || ctx->info->core;
+      if( emulationNeeded == false ) {
+        return false;
+      }
+      RectIntercept( this, ctx->dispatchGL );
       return true;
     }
     
diff --git a/src/regal/layer/so/So.h b/src/regal/layer/so/So.h
index 0ec2d95..9f0e569 100644
--- a/src/regal/layer/so/So.h
+++ b/src/regal/layer/so/So.h
@@ -83,7 +83,12 @@ namespace Emu {
       
       orig.Initialize( ctx->dispatchGL );
       // if not needed or not supported, return false now
-      
+      bool from_core = ctx->info->gl_version_3_3 == GL_TRUE || ctx->info->gles_version_major >= 3;
+      bool from_ext = ctx->info->gl_arb_sampler_objects == GL_TRUE;
+      bool emulationNeeded = ! ( from_core || from_ext );
+      if( emulationNeeded == false ) {
+        return false;
+      }
       SoIntercept( this, ctx->dispatchGL );
       activeTextureUnit = 0;
       nextSamplerObjectId = 1;
diff --git a/src/regal/layer/texc/TexC.cpp b/src/regal/layer/texc/TexC.cpp
index e3ad99d..9beff74 100644
--- a/src/regal/layer/texc/TexC.cpp
+++ b/src/regal/layer/texc/TexC.cpp
@@ -319,6 +319,10 @@ namespace Emu {
     
     orig.Initialize( ctx->dispatchGL );
     // if not supported or not needed return false here
+    bool emulationNeeded = ctx->info->es2;
+    if( emulationNeeded == false ) {
+      return false;
+    }
     TexCIntercept( this, ctx->dispatchGL );
     
     RegalContext * sharingWith = ctx->shareGroup->front();
diff --git a/src/regal/layer/texsto/TexSto.h b/src/regal/layer/texsto/TexSto.h
index eb4f0fb..b2b77f8 100644
--- a/src/regal/layer/texsto/TexSto.h
+++ b/src/regal/layer/texsto/TexSto.h
@@ -66,7 +66,19 @@ namespace Emu {
     virtual std::string GetName() const { return "texsto"; }
     
     bool Initialize( const std::string & instanceInfo ) {
-      ResetInterception();
+      RegalContext * ctx = GetContext();
+      orig.Initialize( ctx->dispatchGL );
+      TexStoIntercept( this, ctx->dispatchGL );
+
+      bool from_core = ctx->info->gl_version_4_2;
+      bool from_ext = ctx->info->gl_arb_texture_storage || ctx->info->gl_ext_texture_storage;
+      bool emulationNeeded = from_core == false && from_ext == false;
+      if( emulationNeeded ) {
+        return false;
+      }
+
+      TexStoIntercept( this, ctx->dispatchGL );
+
       return true;
     }
     
diff --git a/src/regal/layer/vao/Vao.h b/src/regal/layer/vao/Vao.h
index 870caee..2467e22 100644
--- a/src/regal/layer/vao/Vao.h
+++ b/src/regal/layer/vao/Vao.h
@@ -129,8 +129,19 @@ namespace Emu
       clientActiveTexture = GL_TEXTURE0;
       orig.Initialize( ctx->dispatchGL );
       // if not supported or not needed return false here
+      
+      bool from_core = (   ctx->info->gl_version_major >= 3
+                        || ctx->info->gles_version_major >= 3 );
+      bool from_ext = ctx->info->gl_arb_vertex_array_object;
+      // need to handle the default vao case, which core profile doesn't handle...
+      bool emulationNeeded = ctx->info->core || ( from_core == false && from_ext == false );
+      if( emulationNeeded == false ) {
+        return false;
+      }      
       VaoIntercept( this, ctx->dispatchGL );
       
+      ctx->emuInfo->gl_arb_vertex_array_object = GL_TRUE;
+      
       max_vertex_attribs = ctx->emuInfo->gl_max_vertex_attribs;
       RegalAssert( max_vertex_attribs <= REGAL_EMU_MAX_VERTEX_ATTRIBS );
       if (max_vertex_attribs > REGAL_EMU_MAX_VERTEX_ATTRIBS)