Temp

project/CMakeLists.txt

@@ -5,6 +5,7 @@ set(SOURCES
     "src/Renderer.cpp"
     "src/Timer.cpp"
     "src/Mesh.cpp"
+    "src/ShadowMesh.cpp"
     "src/InstancedMesh.cpp"
     "src/Camera.cpp"
     "src/Texture.cpp"
@@ -12,21 +13,30 @@ set(SOURCES
     "src/Utils.cpp"
     "src/HitTest.cpp"
     "src/Material.cpp"
+    "src/Light.cpp"
+
 	"src/Math/Vector2.cpp"
     "src/Math/Vector3.cpp"
     "src/Math/Vector4.cpp"
     "src/Math/Matrix.cpp"
+
     "src/Effects/Effect.cpp"
     "src/Effects/BaseEffect.cpp"
     "src/Effects/FireEffect.cpp"
+    "src/Effects/ShadowEffect.cpp"
 
     "src/PerlinNoise.hpp"
 
+    "src/Buffers/DepthBuffer.cpp"
+    "src/Buffers/SamplerState.cpp"
+    "src/Buffers/ShadowMapBuffer.cpp"
+
     "src/Scenes/BaseScene.cpp"
     "src/Scenes/MainScene.cpp"
     "src/Scenes/DioramaScene.cpp"
     "src/Scenes/InstancedScene.cpp"
     "src/Scenes/PlanetScene.cpp"
+    "src/Scenes/ShadowTestScene.cpp"
 )
 
 SET(INCLUDE_DIRS
@@ -34,6 +44,7 @@ SET(INCLUDE_DIRS
     "src/Math"
     "src/Effects"
     "src/Scenes"
+    "src/Buffers"
 )
 
 # Create the executable

project/resources/ShadingDemo.mtl

@@ -0,0 +1,2 @@
+# Blender 4.3.2 MTL File: 'None'
+# www.blender.org

project/resources/shadowEffect.fx

@@ -0,0 +1,40 @@
+float4x4 gLightWorldViewProj : WorldViewProjection;
+
+float4x4 gWorldViewProj: WorldViewProjection; //For compatibility sake
+
+Texture2D gShadowMap : register(t0); // Shadow map texture
+SamplerState gShadowMapSampler : register(s0); // Shadow map sampler
+
+struct VS_Input
+{
+    float3 Position : POSITION;
+};
+
+struct VS_Output
+{
+    float4 Position : SV_POSITION;
+};
+
+VS_Output VS_Shadow(VS_Input input)
+{
+    VS_Output output;
+    // Transform vertex position to light's clip space
+    output.Position = mul(float4(input.Position, 1.0f), gLightWorldViewProj);
+    return output;
+}
+
+float4 PS_Shadow(VS_Output input) : SV_TARGET
+{
+    // Output depth information (Z/W in clip space)
+    return float4(input.Position.z / input.Position.w, 0.0f, 0.0f, 1.0f);
+}
+
+// Technique for rendering shadow map
+technique11 DefaultTechnique
+{
+    pass P0
+    {
+        SetVertexShader(CompileShader(vs_5_0, VS_Shadow()));
+        SetPixelShader(CompileShader(ps_5_0, PS_Shadow()));
+    }
+}

project/src/Buffers/DepthBuffer.cpp

@@ -0,0 +1,45 @@
+#include "DepthBuffer.h"
+
+DepthBuffer::DepthBuffer(ID3D11Device* device, UINT width, UINT height)
+        : m_device(device), m_width(width), m_height(height), m_depthBuffer(nullptr), m_depthStencilView(nullptr)
+{
+}
+
+DepthBuffer::~DepthBuffer()
+{
+    if (m_depthStencilView) m_depthStencilView->Release();
+    if (m_depthBuffer) m_depthBuffer->Release();
+}
+
+bool DepthBuffer::Initialize()
+{
+    // Create a depth buffer
+    D3D11_TEXTURE2D_DESC desc = {};
+    desc.Width = m_width;
+    desc.Height = m_height;
+    desc.MipLevels = 1;
+    desc.ArraySize = 1;
+    desc.Format = DXGI_FORMAT_D32_FLOAT;
+    desc.SampleDesc.Count = 1;
+    desc.Usage = D3D11_USAGE_DEFAULT;
+    desc.BindFlags = D3D11_BIND_DEPTH_STENCIL;
+    desc.CPUAccessFlags = 0;
+
+    HRESULT hr = m_device->CreateTexture2D(&desc, nullptr, &m_depthBuffer);
+    if (FAILED(hr))
+    {
+        return false;
+    }
+
+    // Create DepthStencilView
+    D3D11_DEPTH_STENCIL_VIEW_DESC dsvDesc = {};
+    dsvDesc.Format = DXGI_FORMAT_D32_FLOAT;
+    dsvDesc.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2D;
+    hr = m_device->CreateDepthStencilView(m_depthBuffer, &dsvDesc, &m_depthStencilView);
+    if (FAILED(hr))
+    {
+        return false;
+    }
+
+    return true;
+}

project/src/Buffers/DepthBuffer.h

@@ -0,0 +1,26 @@
+#ifndef GP1_DIRECTX_DEPTHBUFFER_H
+#define GP1_DIRECTX_DEPTHBUFFER_H
+
+#include <d3d11.h>
+
+class DepthBuffer
+{
+public:
+    DepthBuffer(ID3D11Device* device, UINT width, UINT height);
+    ~DepthBuffer();
+
+    bool Initialize();
+    ID3D11Texture2D* GetDepthBuffer() const { return m_depthBuffer; }
+    ID3D11DepthStencilView* GetDepthStencilView() const { return m_depthStencilView; }
+
+private:
+    ID3D11Device* m_device;
+    UINT m_width;
+    UINT m_height;
+
+    ID3D11Texture2D* m_depthBuffer;
+    ID3D11DepthStencilView* m_depthStencilView;
+};
+
+
+#endif //GP1_DIRECTX_DEPTHBUFFER_H

project/src/Buffers/SamplerState.cpp

@@ -0,0 +1,27 @@
+#include "SamplerState.h"
+
+SamplerState::SamplerState(ID3D11Device *device)
+        : m_device(device), m_samplerState(nullptr) {
+}
+
+SamplerState::~SamplerState() {
+    if (m_samplerState) m_samplerState->Release();
+}
+
+bool SamplerState::Initialize() {
+    D3D11_SAMPLER_DESC samplerDesc = {};
+    samplerDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
+    samplerDesc.AddressU = D3D11_TEXTURE_ADDRESS_CLAMP;
+    samplerDesc.AddressV = D3D11_TEXTURE_ADDRESS_CLAMP;
+    samplerDesc.AddressW = D3D11_TEXTURE_ADDRESS_CLAMP;
+    samplerDesc.ComparisonFunc = D3D11_COMPARISON_LESS_EQUAL;
+    samplerDesc.MinLOD = 0;
+    samplerDesc.MaxLOD = D3D11_FLOAT32_MAX;
+
+    HRESULT hr = m_device->CreateSamplerState(&samplerDesc, &m_samplerState);
+    if (FAILED(hr)) {
+        return false;
+    }
+
+    return true;
+}

project/src/Buffers/SamplerState.h

@@ -0,0 +1,20 @@
+#ifndef GP1_DIRECTX_SAMPLERSTATE_H
+#define GP1_DIRECTX_SAMPLERSTATE_H
+
+#include <d3d11.h>
+
+class SamplerState
+{
+public:
+    SamplerState(ID3D11Device* device);
+    ~SamplerState();
+
+    bool Initialize();
+    ID3D11SamplerState* GetSamplerState() const { return m_samplerState; }
+
+private:
+    ID3D11Device* m_device;
+    ID3D11SamplerState* m_samplerState;
+};
+
+#endif //GP1_DIRECTX_SAMPLERSTATE_H

project/src/Buffers/ShadowMapBuffer.cpp

@@ -0,0 +1,44 @@
+#include "ShadowMapBuffer.h"
+
+ShadowMapBuffer::ShadowMapBuffer(ID3D11Device *device, UINT width, UINT height)
+        : m_device(device), m_width(width), m_height(height), m_shaderResourceView(nullptr),
+          m_depthBuffer(device, width, height), m_samplerState(device) {
+}
+
+ShadowMapBuffer::~ShadowMapBuffer() {
+    if (m_shaderResourceView) m_shaderResourceView->Release();
+}
+
+bool ShadowMapBuffer::Initialize() {
+    if (!m_depthBuffer.Initialize()) {
+        return false;
+    }
+
+    if (!m_samplerState.Initialize()) {
+        return false;
+    }
+
+    // Create ShaderResourceView for the depth buffer
+    D3D11_SHADER_RESOURCE_VIEW_DESC srvDesc = {};
+    srvDesc.Format = DXGI_FORMAT_R32_FLOAT;
+    srvDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
+    HRESULT hr = m_device->CreateShaderResourceView(m_depthBuffer.GetDepthBuffer(), &srvDesc, &m_shaderResourceView);
+    if (FAILED(hr)) {
+        return false;
+    }
+
+    return true;
+}
+
+void ShadowMapBuffer::SetRenderTarget(ID3D11DeviceContext *deviceContext) {
+    deviceContext->OMSetRenderTargets(0, nullptr, m_depthBuffer.GetDepthStencilView());
+}
+
+void ShadowMapBuffer::ResetRenderTarget(ID3D11DeviceContext *deviceContext) {
+    ID3D11RenderTargetView *nullRTV = nullptr;
+    deviceContext->OMSetRenderTargets(1, &nullRTV, nullptr);
+}
+
+ID3D11DepthStencilView *ShadowMapBuffer::GetDepthStencilView() {
+    return m_depthBuffer.GetDepthStencilView();
+}

project/src/Buffers/ShadowMapBuffer.h

@@ -0,0 +1,44 @@
+//
+// Created by Bram on 13/01/2025.
+//
+
+#ifndef GP1_DIRECTX_SHADOWMAPBUFFER_H
+#define GP1_DIRECTX_SHADOWMAPBUFFER_H
+
+#include <d3d11.h>
+#include <DirectXMath.h>
+#include "DepthBuffer.h"
+#include "SamplerState.h"
+
+class ShadowMapBuffer {
+public:
+    ShadowMapBuffer(ID3D11Device *device, UINT width, UINT height);
+
+    ~ShadowMapBuffer();
+
+    bool Initialize();
+
+    void SetRenderTarget(ID3D11DeviceContext *deviceContext);
+
+    void ResetRenderTarget(ID3D11DeviceContext *deviceContext);
+
+    // Get the depth stencil view and the sampler state
+    ID3D11ShaderResourceView *GetShaderResourceView() const { return m_shaderResourceView; }
+
+    ID3D11SamplerState *GetSamplerState() const { return m_samplerState.GetSamplerState(); }
+
+
+    ID3D11DepthStencilView *GetDepthStencilView();
+
+private:
+    ID3D11Device *m_device;
+    UINT m_width;
+    UINT m_height;
+
+    DepthBuffer m_depthBuffer;
+    SamplerState m_samplerState;
+
+    ID3D11ShaderResourceView *m_shaderResourceView;
+};
+
+#endif //GP1_DIRECTX_SHADOWMAPBUFFER_H

project/src/Effects/BaseEffect.cpp

@@ -54,7 +54,6 @@ ID3DX11Effect *BaseEffect::LoadEffect(ID3D11Device *devicePtr, const std::wstrin
                 ss << errorsPtr[i];
             OutputDebugStringW(ss.str().c_str());
 
-
             errorBlobPtr->Release();
             errorBlobPtr = nullptr;
             return nullptr;

project/src/Effects/ShadowEffect.cpp

@@ -0,0 +1,42 @@
+//
+// Created by Bram on 13/01/2025.
+//
+
+#include "ShadowEffect.h"
+
+ShadowEffect::ShadowEffect(ID3D11Device *devicePtr, const std::wstring &filePath)
+        : BaseEffect(devicePtr, filePath) {
+    // Retrieve shadow-specific variables
+    m_LightWorldViewProjVariable = m_EffectPtr->GetVariableByName("gLightWorldViewProj")->AsMatrix();
+    if (!m_LightWorldViewProjVariable->IsValid()) {
+        throw std::runtime_error("Failed to retrieve gLightWorldViewProj variable in ShadowEffect.");
+    }
+
+    m_ShadowMapVariable = m_EffectPtr->GetVariableByName("gShadowMap")->AsShaderResource();
+    if (!m_ShadowMapVariable->IsValid()) {
+        throw std::runtime_error("Failed to retrieve gShadowMap variable in ShadowEffect.");
+    }
+
+    m_ShadowMapSamplerVariable = m_EffectPtr->GetVariableByName("gShadowMapSampler")->AsSampler();
+    if (!m_ShadowMapSamplerVariable->IsValid()) {
+        throw std::runtime_error("Failed to retrieve gShadowMapSampler variable in ShadowEffect.");
+    }
+}
+
+void ShadowEffect::SetLightWorldViewProjMatrix(const Matrix &matrix) {
+    if (m_LightWorldViewProjVariable) {
+        m_LightWorldViewProjVariable->SetMatrix(reinterpret_cast<const float*>(&matrix));
+    }
+}
+
+void ShadowEffect::SetShadowMap(ID3D11ShaderResourceView *shadowMapSRV) {
+    if (m_ShadowMapVariable) {
+        m_ShadowMapVariable->SetResource(shadowMapSRV);
+    }
+}
+void ShadowEffect::SetShadowMapSampler(ID3D11SamplerState *samplerState) {
+    if (m_ShadowMapSamplerVariable) {
+        m_ShadowMapSamplerVariable->SetSampler(0, samplerState);
+    }
+}
+

project/src/Effects/ShadowEffect.h

@@ -0,0 +1,25 @@
+
+#ifndef GP1_DIRECTX_SHADOWEFFECT_H
+#define GP1_DIRECTX_SHADOWEFFECT_H
+
+#include "BaseEffect.h"
+
+class ShadowEffect : public BaseEffect {
+public:
+    ShadowEffect(ID3D11Device* devicePtr, const std::wstring& filePath);
+
+    ~ShadowEffect() override = default;
+
+    void SetLightWorldViewProjMatrix(const dae::Matrix& matrix);
+
+    void SetShadowMap(ID3D11ShaderResourceView* shadowMapSRV);
+
+    void SetShadowMapSampler(ID3D11SamplerState* samplerState);
+
+private:
+    ID3DX11EffectMatrixVariable* m_LightWorldViewProjVariable{nullptr};
+    ID3DX11EffectShaderResourceVariable* m_ShadowMapVariable{nullptr};
+    ID3DX11EffectSamplerVariable* m_ShadowMapSamplerVariable{nullptr};
+};
+
+#endif //GP1_DIRECTX_SHADOWEFFECT_H

project/src/Light.cpp

@@ -0,0 +1,37 @@
+#include "Light.h"
+#include <cmath>
+
+Light::Light()
+        : m_Position(0.0f, 10.0f, 0.0f),
+          m_Target(0.0f, 0.0f, 0.0f),
+          m_Up(0.0f, 1.0f, 0.0f),
+          m_ViewMatrix(dae::Matrix()),
+          m_ProjectionMatrix(dae::Matrix()) {}
+
+void Light::SetPosition(const dae::Vector3 &position) {
+    m_Position = position;
+}
+
+void Light::SetTarget(const dae::Vector3 &target) {
+    m_Target = target;
+}
+
+void Light::SetUp(const dae::Vector3 &up) {
+    m_Up = up;
+}
+
+dae::Matrix Light::GetViewMatrix() const {
+    return dae::Matrix::CreateLookAtLH(m_Position, m_Target, m_Up);
+}
+
+dae::Matrix Light::GetProjectionMatrix(float nearPlane, float farPlane, float size) const {
+    return dae::Matrix::CreateOrthographic(size, size, nearPlane, farPlane);
+}
+
+dae::Matrix Light::GetViewProjectionMatrix(float nearPlane, float farPlane, float size) const {
+    return GetViewMatrix() * GetProjectionMatrix(nearPlane, farPlane, size);
+}
+
+void Light::Update() {
+    // If the light position or target changes dynamically, this is where updates would be managed.
+}

project/src/Light.h

@@ -0,0 +1,32 @@
+#ifndef GP1_DIRECTX_LIGHT_H
+#define GP1_DIRECTX_LIGHT_H
+
+
+#include "Math/Vector3.h"
+#include "Math/Matrix.h"
+
+class Light {
+public:
+    Light();
+    ~Light() = default;
+
+    void SetPosition(const dae::Vector3 &position);
+    void SetTarget(const dae::Vector3 &target);
+    void SetUp(const dae::Vector3 &up);
+
+    dae::Matrix GetViewMatrix() const;
+    dae::Matrix GetProjectionMatrix(float nearPlane = 0.1f, float farPlane = 100.0f, float size = 20.0f) const;
+    dae::Matrix GetViewProjectionMatrix(float nearPlane = 0.1f, float farPlane = 100.0f, float size = 20.0f) const;
+
+    void Update();
+
+private:
+    dae::Vector3 m_Position;
+    dae::Vector3 m_Target;
+    dae::Vector3 m_Up;
+
+    dae::Matrix m_ViewMatrix;
+    dae::Matrix m_ProjectionMatrix;
+};
+
+#endif //GP1_DIRECTX_LIGHT_H

project/src/Math/Matrix.cpp

@@ -302,5 +302,14 @@ namespace dae {
         data[3] = {vector3, 1};
     }
 
+    Matrix Matrix::CreateOrthographic(float size, float size1, float plane, float plane1) {
+        return Matrix(
+                {2.f / size, 0, 0, 0},
+                {0, 2.f / size1, 0, 0},
+                {0, 0, 1.f / (plane1 - plane), 0},
+                {0, 0, -plane / (plane1 - plane), 1}
+        );
+    }
+
 #pragma endregion
 }

project/src/Math/Matrix.h

@@ -58,6 +58,8 @@ namespace dae {
 
         void SetTranslation(Vector3 vector3);
 
+        static dae::Matrix CreateOrthographic(float size, float size1, float plane, float plane1);
+
     private:
 
 		//Row-Major Matrix

project/src/Mesh.cpp

@@ -140,4 +140,8 @@ void Mesh::SetMaterial(Material *pMaterial) {
 
 void Mesh::CycleCullMode() {
     m_EffectPtr->NextCullMode();
-}
+}
+
+BaseEffect *Mesh::GetEffect() {
+    return m_EffectPtr;
+}

project/src/Mesh.h

@@ -21,7 +21,7 @@ enum class PrimitiveTopology {
 
 
 
-class Mesh final {
+class Mesh {
 public:
     Mesh(ID3D11Device *devicePtr, const std::vector<VertexIn> &verticesIn, const std::vector<Uint32> &indices,
          std::shared_ptr<Material> material, BaseEffect* effectPtr);
@@ -53,6 +53,8 @@ public:
     void SetShouldRender(bool shouldRender) { m_ShouldRender = shouldRender; }
     bool GetShouldRender() const { return m_ShouldRender; }
 
+    BaseEffect *GetEffect();
+
 private:
     BaseEffect *m_EffectPtr;
 

project/src/Renderer.cpp

@@ -10,6 +10,7 @@
 #include "Scenes/DioramaScene.h"
 #include "Scenes/InstancedScene.h"
 #include "Scenes/PlanetScene.h"
+#include "Scenes/ShadowTestScene.h"
 
 
 namespace dae {
@@ -36,7 +37,7 @@ namespace dae {
 
         InitializeSDLRasterizer();
 
-        m_pScene = new MainScene();
+        m_pScene = new ShadowTestScene();
         m_pScene->Initialize(m_DevicePtr, m_DeviceContextPtr, nullptr);
 
         if (!m_pScene->GetMeshes().empty()) {
@@ -136,6 +137,7 @@ namespace dae {
         m_SwapChainPtr->Present(0, 0);
     }
 
+
     void Renderer::RenderSDL() {
         ColorRGB ChosenClearColor = m_UseUniformClearColor ? m_UniformClearColor : m_ClearColorSoftware;
         SDL_FillRect(m_pBackBuffer, nullptr, SDL_MapRGB(m_pBackBuffer->format, ChosenClearColor.r, ChosenClearColor.g, ChosenClearColor.b));

project/src/Renderer.h

@@ -5,6 +5,7 @@
 #include "HitTest.h"
 #include "Scenes/BaseScene.h"
 #include "Effects/Effect.h"
+#include "Buffers/ShadowMapBuffer.h"
 
 #include <unordered_map>
 
@@ -92,6 +93,9 @@ namespace dae
 
         ColorRGB m_UniformClearColor{ ColorRGB{0.1f * 255.f, 0.1f * 255.f, 0.1 * 255.f} };
 
+        ShadowMapBuffer* m_pShadowMapBuffer{};
+        dae::Matrix m_LightViewProjectionMatrix{};
+
 
         //DirectX vars
 

project/src/Scenes/BaseScene.h

@@ -27,6 +27,7 @@ public:
 
     virtual std::vector<Mesh*>& GetMeshes() = 0;
     virtual std::vector<std::shared_ptr<Material>>& GetMaterials() = 0;
+
 };
 
 

project/src/Scenes/ShadowTestScene.cpp

@@ -0,0 +1,83 @@
+//
+// Created by Bram on 14/01/2025.
+//
+
+#include "ShadowTestScene.h"
+#include "../Utils.h"
+#include "../Effects/ShadowEffect.h"
+#include "../Effects/Effect.h"
+
+void ShadowTestScene::Initialize(ID3D11Device *DevicePtr, ID3D11DeviceContext *DeviceContextPtr, Camera *camera) {
+    // Initialize shadow map buffer
+    m_ShadowMapBuffer = new ShadowMapBuffer(DevicePtr, 1024, 1024); // Example resolution: 1024x1024
+    m_ShadowMapBuffer->Initialize();
+    // Initialize light source
+    m_Light.SetPosition({0.0f, 10.0f, 0.0f});
+    m_Light.SetTarget({0.0f, 0.0f, 0.0f});
+    m_Light.SetUp({0.0f, 1.0f, 0.0f});
+
+    std::vector<VertexIn> vertices{};
+    std::vector<uint32_t> indices{};
+
+    if(!Utils::ParseOBJNew("resources/ShadingDemo.obj", vertices, indices, true)){
+        assert(true && "Model failed to load");
+    }
+
+
+    auto shadowEffect = new ShadowEffect(DevicePtr, L"resources/shadowEffect.fx");
+    auto otherEffect = new Effect(DevicePtr, L"resources/SimpleDiffuse.fx");
+
+    auto shadowMesh = new ShadowMesh(DevicePtr, vertices, indices, std::make_shared<Material>(), shadowEffect, otherEffect);
+
+
+    m_shadowMeshes.push_back(shadowMesh);
+//    m_shadowMaterials.push_back(material);
+}
+
+void ShadowTestScene::Update() {
+    m_Light.Update();
+}
+
+void ShadowTestScene::Render(ID3D11DeviceContext *devicePtr, ID3D11RenderTargetView *renderTargetViewPtr,
+                             ID3D11DepthStencilView *depthStencilViewPtr, const Camera &camera) {
+// Shadow map pass
+    devicePtr->OMSetRenderTargets(0, nullptr, m_ShadowMapBuffer->GetDepthStencilView());
+    devicePtr->ClearDepthStencilView(m_ShadowMapBuffer->GetDepthStencilView(), D3D11_CLEAR_DEPTH, 1.0f, 0);
+
+    for (auto* mesh : m_shadowMeshes) {
+        Matrix lightWorldViewProj = mesh->GetWorldMatrix() * m_Light.GetViewProjectionMatrix();
+        dynamic_cast<ShadowMesh*>(mesh)->RenderShadow(devicePtr, lightWorldViewProj);
+    }
+
+    devicePtr->OMSetRenderTargets(1, &renderTargetViewPtr, depthStencilViewPtr);
+    for (auto* mesh : m_shadowMeshes) {
+        Matrix worldViewProj = mesh->GetWorldMatrix() * camera.GetViewProjectionMatrix();
+        dynamic_cast<ShadowMesh*>(mesh)->RenderFinal(devicePtr, worldViewProj);
+    }
+}
+
+void ShadowTestScene::Cleanup() {
+
+    for (auto *mesh : m_Meshes) {
+        delete mesh;
+    }
+
+    m_Meshes.clear();
+
+    for (auto *mesh : m_shadowMeshes) {
+        delete mesh;
+    }
+
+    m_shadowMeshes.clear();
+
+    delete m_ShadowMapBuffer;
+
+}
+
+std::vector<Mesh *> &ShadowTestScene::GetMeshes() {
+    return m_Meshes;
+}
+
+std::vector<std::shared_ptr<Material>> &ShadowTestScene::GetMaterials() {
+    return m_Materials;
+}

project/src/Scenes/ShadowTestScene.h

@@ -0,0 +1,39 @@
+#ifndef GP1_DIRECTX_SHADOWTESTSCENE_H
+#define GP1_DIRECTX_SHADOWTESTSCENE_H
+
+#include "BaseScene.h"
+#include "../Buffers/ShadowMapBuffer.h"
+#include "../Light.h"
+#include "../ShadowMesh.h"
+
+class ShadowTestScene: public BaseScene {
+public:
+    void Initialize(ID3D11Device *DevicePtr, ID3D11DeviceContext *DeviceContextPtr, Camera *camera) override;
+
+    void Update() override;
+
+    void Render(ID3D11DeviceContext *devicePtr, ID3D11RenderTargetView *renderTargetViewPtr, ID3D11DepthStencilView *depthStencilViewPtr,
+                const Camera &camera) override;
+
+    void Cleanup() override;
+
+    std::vector<Mesh *> &GetMeshes() override;
+
+    std::vector<std::shared_ptr<Material>> &GetMaterials() override;
+
+private:
+    std::vector<Mesh *> m_Meshes;
+    std::vector<std::shared_ptr<Material>> m_Materials;
+
+    std::vector<ShadowMesh *> m_shadowMeshes;
+    std::vector<std::shared_ptr<Material>> m_shadowMaterials;
+
+
+    ShadowMapBuffer *m_ShadowMapBuffer{nullptr};
+    Light m_Light;
+
+    void RenderShadowMapToScreen(ID3D11DeviceContext *devicePtr, ID3D11RenderTargetView *renderTargetViewPtr);
+};
+
+
+#endif //GP1_DIRECTX_SHADOWTESTSCENE_H

project/src/ShadowMesh.cpp

@@ -0,0 +1,114 @@
+#include "ShadowMesh.h"
+#include <d3d11.h>
+#include <d3dx11effect.h>
+#include <cassert>
+
+ShadowMesh::ShadowMesh(ID3D11Device* devicePtr,
+                       const std::vector<VertexIn>& verticesIn,
+                       const std::vector<Uint32>& indices,
+                       std::shared_ptr<Material> material,
+                       ShadowEffect* shadowEffectPtr,
+                       BaseEffect* colorEffectPtr)
+        : m_ShadowEffectPtr(shadowEffectPtr),
+          m_ColorEffectPtr(colorEffectPtr),
+          m_VerticesIn(verticesIn),
+          m_Indices(indices),
+          m_IndicesCount(static_cast<UINT>(indices.size())) {
+
+    HRESULT result;
+
+    // Create input layout
+    D3D11_INPUT_ELEMENT_DESC vertexDesc[] = {
+            {"POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0},
+            {"TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, static_cast<UINT>(offsetof(VertexIn, uv)), D3D11_INPUT_PER_VERTEX_DATA, 0},
+            {"NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, static_cast<UINT>(offsetof(VertexIn, normal)), D3D11_INPUT_PER_VERTEX_DATA, 0},
+            {"TANGENT", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, static_cast<UINT>(offsetof(VertexIn, tangent)), D3D11_INPUT_PER_VERTEX_DATA, 0},
+    };
+
+    D3DX11_PASS_DESC passDesc;
+    ID3DX11EffectTechnique* techniquePtr = m_ShadowEffectPtr->GetTechniquePtr();
+    techniquePtr->GetPassByIndex(0)->GetDesc(&passDesc);
+
+    result = devicePtr->CreateInputLayout(vertexDesc, ARRAYSIZE(vertexDesc),
+                                          passDesc.pIAInputSignature, passDesc.IAInputSignatureSize,
+                                          &m_InputLayoutPtr);
+    assert(result == S_OK && "Creating input layout failed");
+
+    // Create vertex buffer
+    D3D11_BUFFER_DESC bufferDesc = {};
+    bufferDesc.Usage = D3D11_USAGE_IMMUTABLE;
+    bufferDesc.ByteWidth = sizeof(VertexIn) * static_cast<UINT>(verticesIn.size());
+    bufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
+    bufferDesc.CPUAccessFlags = 0;
+
+    D3D11_SUBRESOURCE_DATA subresourceData = {};
+    subresourceData.pSysMem = verticesIn.data();
+
+    result = devicePtr->CreateBuffer(&bufferDesc, &subresourceData, &m_VertexBufferPtr);
+    assert(result == S_OK && "Creating vertex buffer failed");
+
+    // Create index buffer
+    bufferDesc.Usage = D3D11_USAGE_IMMUTABLE;
+    bufferDesc.ByteWidth = sizeof(Uint32) * m_IndicesCount;
+    bufferDesc.BindFlags = D3D11_BIND_INDEX_BUFFER;
+
+    subresourceData.pSysMem = m_Indices.data();
+
+    result = devicePtr->CreateBuffer(&bufferDesc, &subresourceData, &m_IndexBufferPtr);
+    assert(result == S_OK && "Creating index buffer failed");
+}
+
+ShadowMesh::~ShadowMesh() {
+    if (m_InputLayoutPtr) m_InputLayoutPtr->Release();
+    if (m_VertexBufferPtr) m_VertexBufferPtr->Release();
+    if (m_IndexBufferPtr) m_IndexBufferPtr->Release();
+
+    delete m_ShadowEffectPtr;
+    delete m_ColorEffectPtr;
+}
+
+void ShadowMesh::RenderShadow(ID3D11DeviceContext* deviceContextPtr, const Matrix& lightWorldViewProj) {
+    m_ShadowEffectPtr->SetLightWorldViewProjMatrix(lightWorldViewProj);
+    deviceContextPtr->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
+    deviceContextPtr->IASetInputLayout(m_InputLayoutPtr);
+
+    const UINT stride = sizeof(VertexIn);
+    const UINT offset = 0;
+    deviceContextPtr->IASetVertexBuffers(0, 1, &m_VertexBufferPtr, &stride, &offset);
+    deviceContextPtr->IASetIndexBuffer(m_IndexBufferPtr, DXGI_FORMAT_R32_UINT, 0);
+
+    D3DX11_TECHNIQUE_DESC techniqueDesc;
+    m_ShadowEffectPtr->GetTechniquePtr()->GetDesc(&techniqueDesc);
+
+    for (UINT p = 0; p < techniqueDesc.Passes; ++p) {
+        m_ShadowEffectPtr->GetTechniquePtr()->GetPassByIndex(p)->Apply(0, deviceContextPtr);
+        deviceContextPtr->DrawIndexed(m_IndicesCount, 0, 0);
+    }
+}
+
+void ShadowMesh::RenderFinal(ID3D11DeviceContext* deviceContextPtr, const Matrix& worldViewProj) {
+    m_ColorEffectPtr->SetWorldViewProjMatrix(worldViewProj);
+    deviceContextPtr->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
+    deviceContextPtr->IASetInputLayout(m_InputLayoutPtr);
+
+    const UINT stride = sizeof(VertexIn);
+    const UINT offset = 0;
+    deviceContextPtr->IASetVertexBuffers(0, 1, &m_VertexBufferPtr, &stride, &offset);
+    deviceContextPtr->IASetIndexBuffer(m_IndexBufferPtr, DXGI_FORMAT_R32_UINT, 0);
+
+    D3DX11_TECHNIQUE_DESC techniqueDesc;
+    m_ColorEffectPtr->GetTechniquePtr()->GetDesc(&techniqueDesc);
+
+    for (UINT p = 0; p < techniqueDesc.Passes; ++p) {
+        m_ColorEffectPtr->GetTechniquePtr()->GetPassByIndex(p)->Apply(0, deviceContextPtr);
+        deviceContextPtr->DrawIndexed(m_IndicesCount, 0, 0);
+    }
+}
+
+void ShadowMesh::SetWorldMatrix(const Matrix& matrix) {
+    m_WorldMatrix = matrix;
+}
+
+Matrix ShadowMesh::GetWorldMatrix() const {
+    return m_WorldMatrix;
+}

project/src/ShadowMesh.h

@@ -0,0 +1,52 @@
+#ifndef SHADOW_MESH_H
+#define SHADOW_MESH_H
+
+#include <cassert>
+#include <vector>
+#include <d3d11.h>
+#include "Effects/ShadowEffect.h"
+#include "Material.h"
+#include "Mesh.h"
+
+class ShadowMesh {
+public:
+    ShadowMesh(ID3D11Device* devicePtr,
+               const std::vector<VertexIn>& verticesIn,
+               const std::vector<Uint32>& indices,
+               std::shared_ptr<Material> material,
+               ShadowEffect* shadowEffectPtr,
+               BaseEffect* colorEffectPtr);
+
+    ~ShadowMesh();
+
+    void RenderShadow(ID3D11DeviceContext* deviceContextPtr, const Matrix& lightWorldViewProj);
+    void RenderFinal(ID3D11DeviceContext* deviceContextPtr, const Matrix& worldViewProj);
+
+    void SetWorldMatrix(const Matrix& matrix);
+    Matrix GetWorldMatrix() const;
+
+private:
+    // Shadow effect
+    ShadowEffect* m_ShadowEffectPtr;
+
+    // Color effect for final render
+    BaseEffect* m_ColorEffectPtr;
+
+    // Buffers
+    ID3D11InputLayout* m_InputLayoutPtr;
+    ID3D11Buffer* m_VertexBufferPtr;
+    ID3D11Buffer* m_IndexBufferPtr;
+
+    // Material and mesh data
+    std::shared_ptr<Material> m_Material;
+    std::vector<VertexIn> m_VerticesIn;
+    std::vector<Uint32> m_Indices;
+
+    // Matrix transformations
+    Matrix m_WorldMatrix;
+
+    // Indices count
+    UINT m_IndicesCount;
+};
+
+#endif // SHADOW_MESH_H