diff --git a/framework/platform-dx/effect.cpp b/framework/platform-dx/effect.cpp
index d4c8446..5789fd9 100644
--- a/framework/platform-dx/effect.cpp
+++ b/framework/platform-dx/effect.cpp
@@ -211,4 +211,55 @@ namespace xna {
 
 		return v;
 	}
+
+	EffectPass::EffectPass(PGraphicsDevice const& device) {
+		if (!device || !device->impl || !device->impl->_context)
+			throw std::invalid_argument("EffectPass::EffectPass: device is null");
+
+		impl = unew<PlatformImplementation>();
+		impl->graphicsDevice = device;
+	}
+
+	String EffectPass::Name() const {
+		if (!impl->dxPass)
+			throw std::runtime_error("EffectPass::Name: The class was not initialized correctly");
+
+		D3DX11_PASS_DESC desc{};
+		impl->dxPass->GetDesc(&desc);
+
+		return String(desc.Name);
+	}
+
+	PEffectAnnotationCollection EffectPass::Annotations() const {
+		if (!impl->dxPass)
+			throw std::runtime_error("EffectPass::Annotations: The class was not initialized correctly");
+
+		D3DX11_PASS_DESC desc{};
+		impl->dxPass->GetDesc(&desc);
+
+		auto annotCount = desc.Annotations;
+
+		if (annotCount == 0)
+			return snew<EffectAnnotationCollection>();
+		
+		std::vector<PEffectAnnotation> list(annotCount);
+
+		for (size_t i = 0; i < annotCount; ++i) {
+			auto current = impl->dxPass->GetAnnotationByIndex(i);
+			auto annotation = snew<EffectAnnotation>();
+			annotation->impl->dxVariable = current;			
+
+			list[i] = annotation;
+		}
+
+		auto collection = snew<EffectAnnotationCollection>(list);
+		return collection;
+	}
+	
+	void EffectPass::Apply() {
+		if (!impl->dxPass)
+			throw std::runtime_error("EffectPass::Apply: The class was not initialized correctly");
+
+		impl->dxPass->Apply(0, impl->graphicsDevice->impl->_context);
+	}
 }
\ No newline at end of file
diff --git a/inc/xna/graphics/device.hpp b/inc/xna/graphics/device.hpp
index ae70e06..1ca5b04 100644
--- a/inc/xna/graphics/device.hpp
+++ b/inc/xna/graphics/device.hpp
@@ -24,6 +24,8 @@ namespace xna {
 		struct PlatformImplementation;
 		uptr<PlatformImplementation> impl = nullptr;
 	};
+
+	using PGraphicsDevice = sptr<GraphicsDevice>;
 }
 
 #endif
\ No newline at end of file
diff --git a/inc/xna/graphics/effect.hpp b/inc/xna/graphics/effect.hpp
index 7dafb49..8213d44 100644
--- a/inc/xna/graphics/effect.hpp
+++ b/inc/xna/graphics/effect.hpp
@@ -6,9 +6,9 @@
 #include "gresource.hpp"
 
 namespace xna {   
+    //Represents an annotation to an EffectParameter. 
     class EffectAnnotation {
-    public:
-        EffectAnnotation();
+    public:        
         Int ColumCount() const;
         String Name() const;
         EffectParameterClass ParameterClass() const;
@@ -26,6 +26,64 @@ namespace xna {
     public:
         struct PlatformImplementation;
         uptr<PlatformImplementation> impl;
+
+    public:
+        EffectAnnotation();
+    };
+
+    using PEffectAnnotation = sptr<EffectAnnotation>;
+
+    class EffectAnnotationCollection {
+    public:
+        EffectAnnotationCollection();
+        
+        EffectAnnotationCollection(std::vector<PEffectAnnotation> const& data) : data(data)
+        {
+        }
+
+        constexpr size_t Count() const {
+            return data.size();
+        }
+
+        PEffectAnnotation operator[](size_t index) {
+            if (index >= data.size())
+                return nullptr;
+
+            return data[index];
+        }
+
+        PEffectAnnotation operator[](String const& name) {
+            for (size_t i = 0; i < data.size(); ++i) {
+                const auto& p = data[i];
+
+                if (p->Name() == name)
+                    return p;
+            }
+
+            return nullptr;
+        }
+
+    public:
+        std::vector<PEffectAnnotation> data;
+    };
+
+    using PEffectAnnotationCollection = sptr<EffectAnnotationCollection>;
+
+    class EffectPass {
+    public:        
+        //Gets the name of this pass. 
+        String Name() const;
+        //The EffectAnnotationCollection containing EffectAnnotation objects for this EffectPass.
+        PEffectAnnotationCollection Annotations() const;
+
+        //Begins this pass.
+        void Apply();
+    public:
+        struct PlatformImplementation;
+        uptr<PlatformImplementation> impl;    
+
+    public:
+        EffectPass(sptr<GraphicsDevice> const& device);
     };
 
 	class Effect : public GraphicsResource {
diff --git a/inc/xna/platform-dx/dx.hpp b/inc/xna/platform-dx/dx.hpp
index fd45d4c..5a8c350 100644
--- a/inc/xna/platform-dx/dx.hpp
+++ b/inc/xna/platform-dx/dx.hpp
@@ -947,9 +947,28 @@ namespace xna {
 	};
 
 	struct EffectAnnotation::PlatformImplementation {
+		~PlatformImplementation() {
+			if (dxVariable) {
+				dxVariable->Release();
+				dxVariable = nullptr;
+			}
+		}
+
 		ID3DX11EffectVariable* dxVariable = nullptr;
 	};
 
+	struct EffectPass::PlatformImplementation {
+		~PlatformImplementation() {
+			if (dxPass) {
+				dxPass->Release();
+				dxPass = nullptr;
+			}
+		}
+
+		ID3DX11EffectPass* dxPass = nullptr;
+		PGraphicsDevice graphicsDevice = nullptr;
+	};
+
 	template <typename T>
 	inline bool IndexBuffer::Initialize(std::vector<T> const& data, xna_error_ptr_arg) {
 		if (!impl || !m_device || !m_device->impl->_device || data.empty()) {