diff --git a/include/Engine/Rendering/ShadowPass.h b/include/Engine/Rendering/ShadowPass.h index b7c37b31..373bc21b 100644 --- a/include/Engine/Rendering/ShadowPass.h +++ b/include/Engine/Rendering/ShadowPass.h @@ -9,17 +9,12 @@ #include "ShadowPassState.h" #include "imgui/imgui.h" -#define MAX_SPLITS 3 +#define MAX_SPLITS 4 #define MAP_SIZE 216.f enum NearFar { Near = 0, Far = 1 }; enum LRBT { Left = 0, Right = 1, Bottom = 2, Top = 3 }; -struct ShadowCamera{ - Camera* camera; - std::array frustumCorners; -}; - struct Frustum { float NearClip; @@ -28,7 +23,7 @@ struct Frustum float AspectRatio; glm::vec3 MiddlePoint; float Radius; - std::array LRTB; + std::array LRBT; std::array CornerPoint; }; @@ -45,24 +40,19 @@ public: void Draw(RenderScene& scene); GLuint DepthMap(int level) const { return m_DepthMap[level]; } - std::array lightP() const { return m_LightProjection; } - std::array lightV() const { return m_LightView; } - std::array farDistance() const { return { m_shadFrusta[0].FarClip, m_shadFrusta[1].FarClip, m_shadFrusta[2].FarClip }; } + std::array LightP() const { return m_LightProjection; } + std::array LightV() const { return m_LightView; } + std::array FarDistance() const { return { m_shadowFrusta[0].FarClip, m_shadowFrusta[1].FarClip, m_shadowFrusta[2].FarClip, m_shadowFrusta[3].FarClip }; } int CurrentNrOfSplits() const { return m_CurrentNrOfSplits; } private: void UpdateFrustumPoints(Frustum& frustum, glm::vec3 camera_position, glm::vec3 view_dir, glm::mat4 p, glm::mat4 v); void UpdateSplitDist(std::array& frusta, float near_distance, float far_distance); - glm::mat4 ApplyCropMatrix(Frustum& frustum, glm::mat4 m, glm::mat4 v); - - glm::mat4 CalculateFrustum(RenderScene & scene, std::shared_ptr directionalLightJob, ShadowCamera shad_cam); - glm::mat4 FindNewFrustum(Frustum frustum, glm::mat4 v, glm::mat4 p); void InitializeCameras(RenderScene & scene); float FindRadius(Frustum& frustum); void PointsToLightspace(Frustum& frustum, glm::mat4 v); void RadiusToLightspace(Frustum& frustum, glm::mat4 v); - - EventBroker* m_EventBroker; + EventBroker* m_EventBroker; const IRenderer* m_Renderer; std::array m_DepthMap; @@ -77,8 +67,8 @@ private: GLfloat m_NearFarPlane[2] = { -34.f, 27.f }; GLfloat m_LRBT[4] = { -10.f, 10.f, -10.f, 10.f }; - GLuint resolutionSizeWidth = 1024 * 2; - GLuint resolutionSizeHeigth = 1024 * 2; + GLuint m_ResolutionSizeWidth = 1024 * 2; + GLuint m_ResolutionSizeHeigth = 1024 * 2; bool m_ShadowOn = true; int m_ShadowLevel = 0; @@ -86,9 +76,7 @@ private: int m_CurrentNrOfSplits = 3; float m_SplitWeight = 0.75f; - //std::array m_shadCams; - Frustum m_MainCamera; - std::array m_shadFrusta; + std::array m_shadowFrusta; }; #endif \ No newline at end of file diff --git a/src/Engine/Rendering/DrawFinalPass.cpp b/src/Engine/Rendering/DrawFinalPass.cpp index 8770adb4..537bc3dc 100644 --- a/src/Engine/Rendering/DrawFinalPass.cpp +++ b/src/Engine/Rendering/DrawFinalPass.cpp @@ -244,9 +244,9 @@ void DrawFinalPass::BindModelUniforms(GLuint shaderHandle, std::shared_ptrlightP().data())); - glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "LightV"), MAX_SPLITS, GL_FALSE, glm::value_ptr(*m_ShadowPass->lightV().data())); - glUniform1fv(glGetUniformLocation(shaderHandle, "FarDistance"), MAX_SPLITS, m_ShadowPass->farDistance().data()); + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "LightP"), MAX_SPLITS, GL_FALSE, glm::value_ptr(*m_ShadowPass->LightP().data())); + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "LightV"), MAX_SPLITS, GL_FALSE, glm::value_ptr(*m_ShadowPass->LightV().data())); + glUniform1fv(glGetUniformLocation(shaderHandle, "FarDistance"), MAX_SPLITS, m_ShadowPass->FarDistance().data()); //GLfloat m_NearFarPlane[2] = { -40.f, 30.f }; diff --git a/src/Engine/Rendering/ShadowPass.cpp b/src/Engine/Rendering/ShadowPass.cpp index a5ef4663..c3eb8c73 100644 --- a/src/Engine/Rendering/ShadowPass.cpp +++ b/src/Engine/Rendering/ShadowPass.cpp @@ -11,14 +11,14 @@ ShadowPass::ShadowPass(IRenderer * renderer) ShadowPass::~ShadowPass() { - // m_shadCams + } void ShadowPass::InitializeCameras(RenderScene & scene) { for (int i = 0; i < m_CurrentNrOfSplits; i++) { - m_shadFrusta[i].AspectRatio = scene.Camera->AspectRatio(); - m_shadFrusta[i].FOV = scene.Camera->FOV(); + m_shadowFrusta[i].AspectRatio = scene.Camera->AspectRatio(); + m_shadowFrusta[i].FOV = scene.Camera->FOV(); } } @@ -69,7 +69,7 @@ void ShadowPass::UpdateFrustumPoints(Frustum& frustum, glm::vec3 camera_position frustum.CornerPoint[6] = far_center + up * far_height + right * far_width; frustum.CornerPoint[7] = far_center - up * far_height + right * far_width; - // Alternative way + // Alternative way. //std::array CornerPoint = { // glm::vec4(-1.f, -1.f, -1.f, 1.f), // glm::vec4(-1.f, 1.f, -1.f, 1.f), @@ -80,12 +80,12 @@ void ShadowPass::UpdateFrustumPoints(Frustum& frustum, glm::vec3 camera_position // glm::vec4(1.f, 1.f, 1.f, 1.f), // glm::vec4(1.f, -1.f, 1.f, 1.f) }; - //std::array final; + //std::array FinalPoints; //for (int i = 0; i < 8; i++) { - // glm::vec4 anus = glm::inverse(p) * CornerPoint[i]; - // anus = anus / anus.w; - // final[i] = glm::vec3(glm::inverse(v) * anus); + // glm::vec4 NDC = glm::inverse(p) * CornerPoint[i]; + // NDC = NDC / NDC.w; + // FinalPoints[i] = glm::vec3(glm::inverse(v) * NDC); //} } @@ -111,7 +111,7 @@ void ShadowPass::InitializeFrameBuffers() for (int i = 0; i < m_CurrentNrOfSplits; i++) { glBindTexture(GL_TEXTURE_2D, m_DepthMap[i]); - glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT16, resolutionSizeWidth / (1 /*+ i*/), resolutionSizeHeigth + (1 /*+ i*/), 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, nullptr); + glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT16, m_ResolutionSizeWidth / (1 /*+ i*/), m_ResolutionSizeHeigth + (1 /*+ i*/), 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, nullptr); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER); @@ -165,7 +165,7 @@ void ShadowPass::PointsToLightspace(Frustum& frustum, glm::mat4 v) if (tempPoint.y > top) { top = tempPoint.y; } } - frustum.LRTB = { left, right, bottom, top }; + frustum.LRBT = { left, right, bottom, top }; } void ShadowPass::RadiusToLightspace(Frustum& frustum, glm::mat4 v) @@ -175,7 +175,7 @@ void ShadowPass::RadiusToLightspace(Frustum& frustum, glm::mat4 v) float bottom = -frustum.Radius; float top =frustum.Radius; - frustum.LRTB = { left, right, bottom, top }; + frustum.LRBT = { left, right, bottom, top }; } void ShadowPass::Draw(RenderScene & scene) @@ -186,10 +186,10 @@ void ShadowPass::Draw(RenderScene & scene) ImGui::DragInt("ShadowLevel", &m_ShadowLevel, 0.05f, 0, m_CurrentNrOfSplits - 1); InitializeCameras(scene); - UpdateSplitDist(m_shadFrusta, scene.Camera->NearClip(), scene.Camera->FarClip()); + UpdateSplitDist(m_shadowFrusta, scene.Camera->NearClip(), scene.Camera->FarClip()); for (int i = 0; i < m_CurrentNrOfSplits; i++) { - UpdateFrustumPoints(m_shadFrusta[i], scene.Camera->Position(), scene.Camera->Forward(), scene.Camera->ProjectionMatrix(), scene.Camera->ViewMatrix()); + UpdateFrustumPoints(m_shadowFrusta[i], scene.Camera->Position(), scene.Camera->Forward(), scene.Camera->ProjectionMatrix(), scene.Camera->ViewMatrix()); //float test = FindRadius(m_shadFrusta[i]); ShadowPassState* state = new ShadowPassState(m_DepthBuffer[i].GetHandle()); @@ -197,7 +197,7 @@ void ShadowPass::Draw(RenderScene & scene) GLuint shaderHandle = m_ShadowProgram->GetHandle(); m_ShadowProgram->Bind(); - glViewport(0, 0, resolutionSizeWidth / (1/* + i*/), resolutionSizeHeigth); + glViewport(0, 0, m_ResolutionSizeWidth / (1/* + i*/), m_ResolutionSizeHeigth); glDisable(GL_TEXTURE_2D); glCullFace(GL_FRONT); //state->Disable(GL_CULL_FACE); @@ -208,11 +208,10 @@ void ShadowPass::Draw(RenderScene & scene) auto directionalLightJob = std::dynamic_pointer_cast(job); if (directionalLightJob) { - m_LightView[i] = glm::lookAt(glm::vec3(-directionalLightJob->Direction) + m_shadFrusta[i].MiddlePoint, m_shadFrusta[i].MiddlePoint, glm::vec3(0.f, 1.f, 0.f)); + m_LightView[i] = glm::lookAt(glm::vec3(-directionalLightJob->Direction) + m_shadowFrusta[i].MiddlePoint, m_shadowFrusta[i].MiddlePoint, glm::vec3(0.f, 1.f, 0.f)); - PointsToLightspace(m_shadFrusta[i], m_LightView[i]); - m_LightProjection[i] = glm::ortho(m_shadFrusta[i].LRTB[Left], m_shadFrusta[i].LRTB[Right], m_shadFrusta[i].LRTB[Bottom], m_shadFrusta[i].LRTB[Top], -30.f, 30.f); - //m_LightProjection[i] = glm::ortho(m_shadFrusta[i].LRTB[Left], m_shadFrusta[i].LRTB[Right], m_shadFrusta[i].LRTB[Bottom], m_shadFrusta[i].LRTB[Top], -0.f, 300.f); + PointsToLightspace(m_shadowFrusta[i], m_LightView[i]); + m_LightProjection[i] = glm::ortho(m_shadowFrusta[i].LRBT[Left], m_shadowFrusta[i].LRBT[Right], m_shadowFrusta[i].LRBT[Bottom], m_shadowFrusta[i].LRBT[Top], -30.f, 30.f); glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "P"), 1, GL_FALSE, glm::value_ptr(m_LightProjection[i])); glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "V"), 1, GL_FALSE, glm::value_ptr(m_LightView[i]));