1 files changed, 41 insertions, 2 deletions

diff --git a/Source/Asura.Engine/Graphics/Canvas.h b/Source/Asura.Engine/Graphics/Canvas.h
index c9adf2d..fc8a527 100644
--- a/Source/Asura.Engine/Graphics/Canvas.h
+++ b/Source/Asura.Engine/Graphics/Canvas.h
@@ -1,25 +1,64 @@
 #ifndef __ASURA_ENGINE_CANVAS_H__
 #define __ASURA_ENGINE_CANVAS_H__
 
+#include <Scripting/Luax.hpp>
+
+#include "GL.h"
+#include "SimClass.h"
 #include "Texture.h"
+#include "RenderTarget.h"
 
 namespace AsuraEngine 
 {
 	namespace Graphics 
 	{
 		
-		class Canvas : public Texture
+		///
+		/// CanvasҲ���Գ�Ϊrender texture������Ҳ������Ϊtexture��Ⱦ��
+		///
+		class Canvas final : public Texture, public RenderTarget, public SimClass
 		{
 		public:
 
 			Canvas();
 
+			///
+			/// �󶨴�canvas������Ϊ�
+			///
+			void Bind(); 
+
+			///
+			/// ����Ϊ�ǻ���󶨻�screen
+			///
+			void Unbind();
+
+			void Render(int x, int y, int sx, int sy, int ox, int oy, int r) override;
+
+			void Render(const Math::Rect& quad, int x, int y, int sx, int sy, int ox, int oy, int r) override;
+
+			//----------------------------------------------------------------------------------------------------------
+
+			LUAX_DECL_FACTORY(SimCanvas);
+
+			LUAX_DECL_METHOD(l_Bind);
+			LUAX_DECL_METHOD(l_Unbind);
+
+			//----------------------------------------------------------------------------------------------------------
+
 		private:
 
-			LUAX_DECL_FACTORY(SimCanvas); // AsuraEngine.SimCanvas
+			///
+			/// Frame buffer object id.
+			///
+			GLuint mFBO;
 
 		};
 		
+		///
+		/// Canvas����ΪRenderTexture
+		///
+		using RenderTexture = Canvas;
+
 	}
 }