WIP

src/Components/PointLight.h

@@ -11,11 +11,13 @@ struct PointLight : Component
 {
 	float Intensity;
 	float MaxRange;
-	glm::vec3 Specular;
-	glm::vec3 Diffuse;
 	float constantAttenuation, linearAttenuation, quadraticAttenuation;
 	float spotExponent;
 	Color color;
+
+	glm::vec3 Specular;
+	glm::vec3 Diffuse;
+	float specularExponent;
 };
 
 }

src/GameWorld.cpp

@@ -58,6 +58,7 @@ void GameWorld::Initialize()
 			transform->Orientation = glm::quat(glm::vec3(-glm::pi<float>() / 8.f, 0.f, 0.f));
 			auto cameraComp = AddComponent<Components::Camera>(camera, "Camera");
 			cameraComp->FarClip = 2000.f;
+			cameraComp->FOV = glm::radians(90.f);
 			AddComponent(camera, "Input");
 			auto freeSteering = AddComponent<Components::FreeSteering>(camera, "FreeSteering");
 			CommitEntity(camera);
@@ -149,7 +150,6 @@ void GameWorld::Initialize()
 	}
 
 /*
-
  	{
  		// Front Right Wheel
  		auto ent = CreateEntity(car);
@@ -224,7 +224,18 @@ void GameWorld::Initialize()
  	CommitEntity(car);
  }
 */
-
+	for(int i = 0; i < 5; i++)
+	{
+		auto Light = CreateEntity();
+		auto transform = AddComponent<Components::Transform>(Light, "Transform");
+		transform->Position = glm::vec3(20+ 10*cos(i), 3, 0 + 10*sin(i));
+		auto light = AddComponent<Components::PointLight>(Light, "PointLight");
+		light->Diffuse = glm::vec3(94.f/255.f, 227.f/255.f, 230.f/255.f);
+		light->Specular = glm::vec3(94.f/255.f, 227.f/255.f, 230.f/255.f);
+		light->specularExponent = 1.0f;
+		auto model = AddComponent<Components::Model>(Light, "Model");
+		model->ModelFile = "Models/Placeholders/PhysicsTest/PointLight.obj";
+	}
 
 
 	for(int i = 0; i < 10; i++)

src/Renderer.cpp

@@ -155,9 +155,6 @@ void Renderer::Draw(double dt)
 
 #pragma region TempRegion
 
-
-
-
 void Renderer::DrawSkybox()
 {
 	glBindFramebuffer(GL_FRAMEBUFFER, 0);
@@ -199,9 +196,9 @@ void Renderer::DrawScene()
 
 	m_ShaderProgram.Bind();
 	glUniform1i(glGetUniformLocation(m_ShaderProgram.GetHandle(), "numberOfLights"), Lights);
-	glUniform3fv(glGetUniformLocation(m_ShaderProgram.GetHandle(), "position"), Lights, Light_position.data());
-	glUniform3fv(glGetUniformLocation(m_ShaderProgram.GetHandle(), "specular"), Lights, Light_specular.data());
-	glUniform3fv(glGetUniformLocation(m_ShaderProgram.GetHandle(), "diffuse"), Lights, Light_diffuse.data());
+// 	glUniform3fv(glGetUniformLocation(m_ShaderProgram.GetHandle(), "position"), Lights, Light_position.data());
+// 	glUniform3fv(glGetUniformLocation(m_ShaderProgram.GetHandle(), "specular"), Lights, Light_specular.data());
+// 	glUniform3fv(glGetUniformLocation(m_ShaderProgram.GetHandle(), "diffuse"), Lights, Light_diffuse.data());
 	glUniform1fv(glGetUniformLocation(m_ShaderProgram.GetHandle(), "constantAttenuation"), Lights, Light_constantAttenuation.data());
 	glUniform1fv(glGetUniformLocation(m_ShaderProgram.GetHandle(), "linearAttenuation"), Lights, Light_linearAttenuation.data());
 	glUniform1fv(glGetUniformLocation(m_ShaderProgram.GetHandle(), "quadraticAttenuation"), Lights, Light_quadraticAttenuation.data());
@@ -359,26 +356,30 @@ void Renderer::AddPointLightToDraw(
     glm::vec3 _position,
     glm::vec3 _specular,
     glm::vec3 _diffuse,
-    float _constantAttenuation,
-    float _linearAttenuation,
-    float _quadraticAttenuation,
-    float _spotExponent
+    float _specularExponent
 )
 {
-	Light_position.push_back(_position.x);
-	Light_position.push_back(_position.y);
-	Light_position.push_back(_position.z);
-	Light_specular.push_back(_specular.x);
-	Light_specular.push_back(_specular.y);
-	Light_specular.push_back(_specular.z);
-	Light_diffuse.push_back(_diffuse.x);
-	Light_diffuse.push_back(_diffuse.y);
-	Light_diffuse.push_back(_diffuse.z);
-	Light_constantAttenuation.push_back(_constantAttenuation);
-	Light_linearAttenuation.push_back(_linearAttenuation);
-	Light_quadraticAttenuation.push_back(_quadraticAttenuation);
-	Light_spotExponent.push_back(_spotExponent);
-	Lights = Light_constantAttenuation.size();
+	Light_position.push_back(_position);
+	Light_specular.push_back(_specular);
+	Light_diffuse.push_back(_diffuse);
+	Light_specularExponent.push_back(_specularExponent);
+	Lights = Light_position.size();
+	CreateLightMatrix();
+
+// 	Light_position.push_back(_position.x);
+// 	Light_position.push_back(_position.y);
+// 	Light_position.push_back(_position.z);
+// 	Light_specular.push_back(_specular.x);
+// 	Light_specular.push_back(_specular.y);
+// 	Light_specular.push_back(_specular.z);
+// 	Light_diffuse.push_back(_diffuse.x);
+// 	Light_diffuse.push_back(_diffuse.y);
+// 	Light_diffuse.push_back(_diffuse.z);
+// 	Light_constantAttenuation.push_back(_constantAttenuation);
+// 	Light_linearAttenuation.push_back(_linearAttenuation);
+// 	Light_quadraticAttenuation.push_back(_quadraticAttenuation);
+// 	Light_spotExponent.push_back(_spotExponent);
+// 	Lights = Light_constantAttenuation.size();
 }
 
 void Renderer::AddAABBToDraw(glm::vec3 origin, glm::vec3 volumeVector, bool colliding)
@@ -523,6 +524,7 @@ void Renderer::ClearStuff()
 	Light_linearAttenuation.clear();
 	Light_quadraticAttenuation.clear();
 	Light_spotExponent.clear();
+	Light_specularExponent.clear();
 	Lights = 0;
 }
 
@@ -657,13 +659,14 @@ void Renderer::DrawFBO()
 	// Clear G-buffer
 	GLenum windowBuffClear[] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2 };
 	glDrawBuffers(3, windowBuffClear);
-	glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+	glClearColor(0.2f, 0.2f, 0.2f, 0.0f);
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
 	// Execute the first render stage which will fill out the internal buffers with data(??)
 	m_FirstPassProgram.Bind();
 	GLenum windowBuffOpaque[] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2 };
 	glDrawBuffers(3, windowBuffOpaque);
+	
 	DrawFBOScene();
 
 	// Draw to screen
@@ -678,7 +681,7 @@ void Renderer::DrawFBO()
 	}
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
-	////SetupDefferedStageUniforms(); // Probably what we do in FrameBufferTextures();
+	
 	glActiveTexture(GL_TEXTURE0);
 	glBindTexture(GL_TEXTURE_2D, m_fDiffuseTexture);
 
@@ -688,9 +691,11 @@ void Renderer::DrawFBO()
 	glActiveTexture(GL_TEXTURE2);
 	glBindTexture(GL_TEXTURE_2D, m_fNormalsTexture);
 
+	DrawLightScene();
+
 	glBindVertexArray(m_ScreenQuad);
 	glEnableVertexAttribArray(0);
-/*	glEnableVertexAttribArray(2);*/
+	glEnableVertexAttribArray(2);
 	glDrawArrays(GL_TRIANGLES, 0, 6);
 }
 
@@ -721,7 +726,6 @@ void Renderer::DrawFBO()
 //	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 //	glDisable(GL_BLEND);
 //
-//
 //	glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
 //	//Probably means to use the second_pass shader
 //	//EnableRenderProgramDeferredStage();
@@ -781,3 +785,55 @@ void Renderer::DrawFBOScene()
 	}
 }
 
+
+
+void Renderer::DrawLightScene()
+{
+	glEnable(GL_BLEND);
+	glBlendEquation (GL_FUNC_ADD);
+	glBlendFunc(GL_ONE,GL_ONE);
+	
+	glDisable (GL_DEPTH_TEST);
+	glDepthMask (GL_FALSE);
+	glBindVertexArray(m_sphereModel->VAO);
+
+	glm::mat4 cameraMatrix = m_Camera->ProjectionMatrix() * m_Camera->ViewMatrix();
+	glm::mat4 MVP;
+
+	for(int i = 0; i < Lights; i++)
+	{
+		glm::mat4 MVP = m_Camera->ProjectionMatrix() * m_Camera->ViewMatrix() * lM[i];
+		
+		glUniformMatrix4fv(glGetUniformLocation(m_FirstPassProgram.GetHandle(), "MVP"), 1, GL_FALSE, glm::value_ptr(MVP));
+		glUniformMatrix4fv(glGetUniformLocation(m_FirstPassProgram.GetHandle(), "V"), 1, GL_FALSE, glm::value_ptr(m_Camera->ViewMatrix()));
+		glUniformMatrix4fv(glGetUniformLocation(m_FirstPassProgram.GetHandle(), "P"), 1, GL_FALSE, glm::value_ptr(m_Camera->ProjectionMatrix()));
+		glUniformMatrix4fv(glGetUniformLocation(m_SecondPassProgram.GetHandle(), "M"), 1, GL_FALSE, glm::value_ptr(lM[i]));
+		glUniform3f(glGetUniformLocation(m_SecondPassProgram.GetHandle(), "ls"), Light_specular[i].x, Light_specular[i].y, Light_specular[i].z);
+		glUniform3f(glGetUniformLocation(m_SecondPassProgram.GetHandle(), "ld"), Light_diffuse[i].x, Light_diffuse[i].y, Light_diffuse[i].z);
+		glUniform3f(glGetUniformLocation(m_SecondPassProgram.GetHandle(), "lp"), Light_position[i].x, Light_position[i].y, Light_position[i].z);
+		glUniform3f(glGetUniformLocation(m_SecondPassProgram.GetHandle(), "CameraPosition"), m_Camera->Position().x, m_Camera->Position().y, m_Camera->Position().z);
+		//glUniform1f(glGetUniformLocation(m_SecondPassProgram.GetHandle(), "speculatExponent"), Light_specularExponent[i]);
+ 		glDrawArrays(GL_TRIANGLES, 0, m_sphereModel->Vertices.size());
+	};
+	glEnable (GL_DEPTH_TEST);
+	glDepthMask (GL_TRUE);
+	glDisable (GL_BLEND);
+}
+
+void Renderer::SetSphereModel( Model* _model )
+{
+	m_sphereModel = _model;
+}
+
+void Renderer::CreateLightMatrix()
+{
+	for(int i = 0; i < Lights; i++)
+	{
+		const float radius = 5.0f;
+		lM[i] = glm::scale(glm::mat4(1.0), glm::vec3(radius, radius, radius));
+		lM[i] = glm::translate(lM[i], Light_position[i]);
+		lM[i] = m_Camera->ProjectionMatrix() * m_Camera->ViewMatrix() * lM[i];
+	}
+	
+}
+

src/Renderer.h

@@ -12,6 +12,7 @@
 #include "Model.h"
 #include "Components/PointLight.h"
 #include "Skybox.h"
+#include "ResourceManager.h"
 
 class Renderer
 {
@@ -24,13 +25,17 @@ public:
 
 	std::list<std::tuple<Model*, glm::mat4, bool, bool>> ModelsToRender;
 	int Lights;
-	std::vector<float> Light_position;
-	std::vector<float> Light_specular;
-	std::vector<float> Light_diffuse;
-	std::vector<float> Light_constantAttenuation;
-	std::vector<float> Light_linearAttenuation;
-	std::vector<float> Light_quadraticAttenuation;
+	std::vector<glm::vec3> Light_position;
+	std::vector<glm::vec3> Light_specular;
+	std::vector<glm::vec3> Light_diffuse;
+	std::vector<float> Light_specularExponent;
+
+
+ 	std::vector<float> Light_constantAttenuation;
+ 	std::vector<float> Light_linearAttenuation;
+ 	std::vector<float> Light_quadraticAttenuation;
 	std::vector<float> Light_spotExponent;
+
 	std::list<std::tuple<glm::mat4, bool>> AABBsToRender;
 
 	Renderer();
@@ -45,10 +50,7 @@ public:
 	    glm::vec3 _position,
 	    glm::vec3 _specular,
 	    glm::vec3 _diffuse,
-	    float _constantAttenuation,
-	    float _linearAttenuation,
-	    float _quadraticAttenuation,
-	    float _spotExponent
+	    float _specularExponent
 	);
 	void AddAABBToDraw(glm::vec3 origin, glm::vec3 volumeVector, bool colliding);
 
@@ -65,6 +67,8 @@ public:
 	void DrawBounds(bool val) { m_DrawBounds = val; }
 	void DrawSkybox();
 
+	void SetSphereModel(Model* _model);
+
 
 
 private:
@@ -94,7 +98,9 @@ private:
 	GLuint m_fb;
 	GLuint m_fDepthBuffer;
 	GLenum draw_bufs[2];
+	glm::mat4 lM[5];
 	GLuint m_ScreenQuad;
+	Model* m_sphereModel;
 
 	bool m_QuadView;
 
@@ -118,7 +124,9 @@ private:
 	void FrameBufferTextures();
 	void DrawFBO();
 	void DrawFBOScene();
+	void DrawLightScene();
 	void BindFragDataLocation();
+	void CreateLightMatrix();
 	
 	GLuint CreateQuad();
 	void DrawDebugShadowMap();

src/Shaders/Fragment2-Debug.glsl

@@ -30,7 +30,7 @@ void main()
 		//FragColor = texture2D(DiffuseTexture, Input.TextureCoord * 2 + vec2(0, -1));
 		DrawQuadrant(texture2D(DiffuseTexture, Input.TextureCoord * 2), vec2(-1, 1));
 		DrawQuadrant(texture2D(PositionTexture, Input.TextureCoord * 2), vec2(1, 1));
-		DrawQuadrant(texture2D(NormalTexture, Input.TextureCoord * 2), vec2(-1, -1));
+		DrawQuadrant((texture2D(NormalTexture, Input.TextureCoord * 2)+1)/2, vec2(-1, -1));
 
 		vec4 AllTexel = texture2D(DiffuseTexture, Input.TextureCoord*2)*texture2D(PositionTexture, Input.TextureCoord*2)*texture2D(NormalTexture, Input.TextureCoord*2);
 		DrawQuadrant(AllTexel, vec2(1, -1));

src/Shaders/Fragment2.glsl

@@ -4,6 +4,20 @@ layout (binding=0) uniform sampler2D DiffuseTexture;
 layout (binding=1) uniform sampler2D PositionTexture;
 layout (binding=2) uniform sampler2D NormalTexture;
 
+uniform mat4 MVP;
+uniform mat4 M;
+uniform mat4 V;
+uniform mat4 P;
+uniform vec3 ls;
+uniform vec3 ld;
+uniform vec3 lp; 
+const float specularExponent = 20.0;
+uniform vec3 CameraPosition;
+
+const vec3 kd = vec3(1.0, 1.0, 1.0);
+const vec3 ks = vec3(1.0, 1.0, 1.0);
+const float kshine = 1.0;
+
 in VertexData
 {
 	vec3 Position;
@@ -13,7 +27,68 @@ in VertexData
 
 out vec4 FragColor;
 
+vec3 phong (vec3 PositionTexel, vec3 NormalTexel)
+{
+	vec3 lightPosition = vec3( M * vec4( lp, 1.0 ) );
+	vec3 distToLight = lightPosition - PositionTexel;
+	vec3 directionToLight = normalize(distToLight);
+
+	//Diffuse light
+	float dotProdDiffuse = max(dot(directionToLight, NormalTexel), 0.0);
+	vec3 Id = ld * kd * dotProdDiffuse; //Final diffuse intensity
+
+	//Specular light
+	vec3 reflection = reflect(-directionToLight, NormalTexel);
+	vec3 surfaceToCamera = normalize(PositionTexel);
+	vec3 HalfWay = normalize(surfaceToCamera + directionToLight);
+	float dotProdSpecular = dot(HalfWay, NormalTexel);
+	dotProdSpecular = max(dotProdSpecular, 0.0);
+	float specularFactor = pow(dotProdSpecular, specularExponent);
+	vec3 Is = ls * ks * specularFactor; //Final specular intensity
+
+	//Attenuation
+	float dist2D = distance(lightPosition, PositionTexel);
+	float attenuationFactor = -log(min(1.0, dist2D / 5.0));
+
+	//vec3 FinalOut = (Id + Is) * attenuationFactor;
+	vec3 FinalOut = Id + Is;
+	return FinalOut;
+}
+
+
+vec3 phong2 (vec3 PositionTexel, vec3 NormalTexel)
+{
+	vec3 LightVector = lp - PositionTexel;
+	vec3 ViewVector = normalize(PositionTexel);
+
+	//diffuse
+	vec3 Id = max(0.0, dot(LightVector, NormalTexel)) * ld;
+
+	vec3 FinalOut = Id;
+	return FinalOut;
+}
+
+vec3 phong3 (vec3 PositionTexel, vec3 NormalTexel)
+{
+	vec3 lightDir = lp - PositionTexel;
+	lightDir = normalize(lightDir);
+
+	vec3 eyeDir = normalize(CameraPosition-PositionTexel);
+	vec3 vHalfVector = normalize(lightDir.xyz+eyeDir);
+	vec3 Id = max(0.0, dot(NormalTexel, lightDir)) * ld;
+	vec3 Is = pow(max(0.0, dot(NormalTexel, vHalfVector)), 100.0) * ls;
+	vec3 FinalFrag = Id + Is;
+	return FinalFrag;
+}
+
 void main()
 {
-	FragColor = texture2D(DiffuseTexture, Input.TextureCoord);
+	vec4 DiffuseTexel = texture2D(DiffuseTexture, Input.TextureCoord);
+	vec4 PositionTexel = texture2D(PositionTexture, Input.TextureCoord);
+	vec4 NormalTexel = texture2D(NormalTexture, Input.TextureCoord);
+
+	vec4 Frag_color;
+	Frag_color.rgb = phong((MVP * PositionTexel).rgb, normalize(NormalTexel).rgb);
+	Frag_color.a = 1.0;
+	FragColor = Frag_color * DiffuseTexel;
 }

src/Shaders/Vertex2.glsl

@@ -3,6 +3,8 @@
 layout (location = 0) in vec3 Position;
 layout (location = 2) in vec2 TextureCoord;
 
+
+
 out VertexData
 {
 	vec3 Position;
@@ -11,7 +13,7 @@ out VertexData
 
 void main()
 {
-	gl_Position = vec4(Position, 1.0);
+	gl_Position = vec4(Position,  1.0);
 	Output.Position = Position;
 	Output.TextureCoord = TextureCoord;
 }

src/Systems/RenderSystem.cpp

@@ -38,10 +38,8 @@ void Systems::RenderSystem::UpdateEntity(double dt, EntityID entity, EntityID pa
 			position,
 			pointLightComponent->Specular,
 			pointLightComponent->Diffuse,
-			pointLightComponent->constantAttenuation,
-			pointLightComponent->linearAttenuation,
-			pointLightComponent->quadraticAttenuation,
-			pointLightComponent->spotExponent);
+			pointLightComponent->specularExponent
+			);
 	}
 
 	auto cameraComponent = m_World->GetComponent<Components::Camera>(entity, "Camera");
@@ -59,6 +57,8 @@ void Systems::RenderSystem::UpdateEntity(double dt, EntityID entity, EntityID pa
 void Systems::RenderSystem::Initialize()
 {
 	m_TransformSystem = m_World->GetSystem<Systems::TransformSystem>("TransformSystem");
+
+	m_Renderer->SetSphereModel(m_World->GetResourceManager()->Load<Model>("Model", "Models/Placeholders/PhysicsTest/Sphere.obj"));
 }
 
 void Systems::RenderSystem::RegisterComponents(ComponentFactory* cf)