diff --git a/includes/xna-dx/implementations.hpp b/includes/xna-dx/implementations.hpp
index 2bf9f36..ff89487 100644
--- a/includes/xna-dx/implementations.hpp
+++ b/includes/xna-dx/implementations.hpp
@@ -17,7 +17,9 @@ namespace xna {
 		D3D11_BLEND_DESC Description{};
 		float BlendFactor[4]{ 1.0F, 1.0F, 1.0F, 1.0F };
 		UINT SampleMask{ 0xffffffff };			
-		comptr<ID3D11BlendState> BlendState;		
+		comptr<ID3D11BlendState> BlendState;
+
+		static constexpr int MAX_RENDER_TARGETS = 8;
 	};
 
 	struct SpriteFont::PlatformImplementation {
diff --git a/includes/xna/graphics/blendstate.hpp b/includes/xna/graphics/blendstate.hpp
index bd5415c..751e93b 100644
--- a/includes/xna/graphics/blendstate.hpp
+++ b/includes/xna/graphics/blendstate.hpp
@@ -169,8 +169,6 @@ namespace xna {
 		//that is blending source and destination data using alpha while assuming the color data contains no alpha information.
 		static std::unique_ptr<BlendState> NonPremultiplied();
 	};	
-
-	using PBlendState = std::shared_ptr<BlendState>;
 }
 
 #endif
\ No newline at end of file
diff --git a/sources/framework-dx/blendstate.cpp b/sources/framework-dx/blendstate.cpp
index e48064f..794a675 100644
--- a/sources/framework-dx/blendstate.cpp
+++ b/sources/framework-dx/blendstate.cpp
@@ -142,7 +142,7 @@ namespace xna {
 	}
 	
 	void BlendState::RenderTargets(BlendRenderTarget const* value, size_t size) {
-		for (size_t i = 0; i < size && i < 8; ++i) {
+		for (size_t i = 0; i < size && i < Implementation->MAX_RENDER_TARGETS; ++i) {
 			Implementation->Description.RenderTarget[i].BlendEnable = value[i].Enabled;
 			Implementation->Description.RenderTarget[i].SrcBlend = DxHelpers::BlendToDx(value[i].Source);
 			Implementation->Description.RenderTarget[i].DestBlend = DxHelpers::BlendToDx(value[i].Destination);