diff --git a/.vim.local/ycm_extra_conf.py b/.vim.local/ycm_extra_conf.py
index 00f328a..b4ecac1 100644
--- a/.vim.local/ycm_extra_conf.py
+++ b/.vim.local/ycm_extra_conf.py
@@ -48,6 +48,7 @@ flags = [
     '-I','imgui',
     '-I','glm',
     '-I','picojson',
+    '-I','ebcl/include',
     '-I','/usr/include/SDL2' ,
     '-D','GLM_ENABLE_EXPERIMENTAL',
 ]
diff --git a/Makefile b/Makefile
index 9eba200..80e936f 100644
--- a/Makefile
+++ b/Makefile
@@ -3,9 +3,10 @@ OUTDIR = output
 CXXFLAGS += $(shell sdl2-config --cflags) -std=c++14 -Wall -g
 CFLAGS += $(shell sdl2-config --cflags)
 CPPFLAGS += -I. -I$(OUTDIR) \
-	    -Iimgui -Iglm -Ipicojson \
+	    -Iimgui -Iglm -Ipicojson -Iebcl/include \
 	    -DREAL_BUILD -DGLM_ENABLE_EXPERIMENTAL
-LIBS += $(shell sdl2-config --libs) -lGL -lGLEW -ldl
+LIBS += $(shell sdl2-config --libs) -lGL -lGLEW -ldl \
+	$(LIBEBCL) -latomic
 
 FILEDUMPS =
 
@@ -54,6 +55,7 @@ clean:
 	rm -f $(OBJS) $(FILEDUMPS) demo $(PCH)
 
 fullclean: clean
+	@+make -C ebcl fullclean CONFIG=../ebcl-config
 	rm -f $(DEMO_DEPS)
 
 .PHONY: clean fullclean
diff --git a/rendertarget.cc b/rendertarget.cc
index c9e0652..1caa673 100644
--- a/rendertarget.cc
+++ b/rendertarget.cc
@@ -11,7 +11,7 @@ T_RendertargetSetup& T_RendertargetSetup::add(
 		__rd__ const uint32_t level )
 {
 	checkAttachment( texture , level );
-	colorAttachments_.push_back( T_Attachment_{ texture , level } );
+	colorAttachments_.add( T_Attachment_{ texture , level } );
 	return *this;
 }
 
@@ -19,9 +19,9 @@ T_RendertargetSetup& T_RendertargetSetup::add(
 T_RendertargetSetup& T_RendertargetSetup::depth(
 		__rw__ T_Texture& texture )
 {
-	assert( !depthAttachment_ );
+	assert( !depthAttachment_.present( ) );
 	checkAttachment( texture , 0 );
-	depthAttachment_ = std::make_unique< T_Attachment_ >( texture , 0 );
+	depthAttachment_.setNew( texture , 0 );
 	return *this;
 }
 
@@ -65,11 +65,12 @@ T_Rendertarget T_RendertargetSetup::create( )
 				colorAttachments_[ i ].texture->id( ) ,
 				colorAttachments_[ i ].level );
 	}
-	if ( depthAttachment_ ) {
+	if ( depthAttachment_.present( ) ) {
+		T_Attachment_ const& de( depthAttachment_ );
 		glFramebufferTexture( GL_FRAMEBUFFER ,
 				GL_DEPTH_ATTACHMENT ,
-				depthAttachment_->texture->id( ) ,
-				depthAttachment_->level );
+				de.texture->id( ) ,
+				de.level );
 	}
 	assert( glCheckFramebufferStatus( GL_FRAMEBUFFER ) == GL_FRAMEBUFFER_COMPLETE );
 	glBindFramebuffer( GL_FRAMEBUFFER , 0 );
@@ -79,7 +80,7 @@ T_Rendertarget T_RendertargetSetup::create( )
 	// Reset config
 	hasAttachments_ = false;
 	colorAttachments_.clear( );
-	depthAttachment_.reset( );
+	depthAttachment_.clear( );
 
 	return T_Rendertarget( id , nca , width_ , height_ );
 }
@@ -129,7 +130,7 @@ bool T_Rendertarget::activate( )
 		if ( nCats_ != buffers_.size( ) ) {
 			buffers_.clear( );
 			for ( auto i = 0u ; i < nCats_ ; i ++ ) {
-				buffers_.push_back( GL_COLOR_ATTACHMENT0 + i );
+				buffers_.add( GL_COLOR_ATTACHMENT0 + i );
 			}
 #ifdef INTRUSIVE_TRACES
 			printf( "fb %d: created buffers (%d items)\n" , id_ ,
diff --git a/rendertarget.hh b/rendertarget.hh
index 099166c..ac476e2 100644
--- a/rendertarget.hh
+++ b/rendertarget.hh
@@ -3,6 +3,7 @@
 # include "externals.hh"
 #endif
 
+#include <ebcl/Arrays.hh>
 #include "texture.hh"
 
 
@@ -32,6 +33,7 @@ struct T_RendertargetSetup
 			: texture( &texture ) , level( level )
 		{}
 	};
+	using T_Attachments_  = ebcl::T_AutoArray< T_Attachment_ , 8 >;
 
 	void checkAttachment(
 			__rw__ T_Texture const& texture ,
@@ -39,8 +41,9 @@ struct T_RendertargetSetup
 
 	bool hasAttachments_;
 	uint32_t width_ , height_;
-	std::vector< T_Attachment_ > colorAttachments_;
-	std::unique_ptr< T_Attachment_ > depthAttachment_;
+
+	T_Attachments_ colorAttachments_;
+	ebcl::T_Optional< T_Attachment_ > depthAttachment_;
 };
 
 
@@ -72,5 +75,5 @@ struct T_Rendertarget
     private:
 	GLuint id_;
 	uint32_t nCats_ , width_ , height_;
-	std::vector< GLenum > buffers_;
+	ebcl::T_AutoArray< GLenum , 8 > buffers_;
 };