Merge lighting

FinalProject/FinalProject.vcxproj

@@ -108,6 +108,7 @@
     <ClCompile Include="ebo.cpp" />
     <ClCompile Include="editorpage.cpp" />
     <ClCompile Include="framelesswindow.cpp" />
+    <ClCompile Include="lightCaster.cpp" />
     <ClCompile Include="lineeditwidget.cpp" />
     <ClCompile Include="logger.cpp" />
     <ClCompile Include="mesh.cpp" />
@@ -142,6 +143,8 @@
     <QtMoc Include="editorpage.h" />
     <QtMoc Include="framelesswindow.h" />
     <QtMoc Include="lineeditwidget.h" />
+    <ClInclude Include="illuminant.h" />
+    <ClInclude Include="lightCaster.h" />
     <ClInclude Include="logger.h" />
     <ClInclude Include="mesh.h" />
     <ClInclude Include="model.h" />

FinalProject/FinalProject.vcxproj.filters

@@ -165,6 +165,9 @@
     <ClCompile Include="modelthumbnailwidget.cpp">
       <Filter>Source Files\Qt Widgets\Pages\Scene Editor\Object Selector</Filter>
     </ClCompile>
+    <ClCompile Include="lightCaster.cpp">
+      <Filter>Source Files\OpenGL Abstractions</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="camera.h">
@@ -206,6 +209,12 @@
     <ClInclude Include="modelsetter.h">
       <Filter>Header Files\Qt Widgets\Pages\Scene Editor\Object Setter</Filter>
     </ClInclude>
+    <ClInclude Include="lightCaster.h">
+      <Filter>Header Files\OpenGL Abstractions</Filter>
+    </ClInclude>
+    <ClInclude Include="illuminant.h">
+      <Filter>Header Files\OpenGL Abstractions</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <QtMoc Include="mainwindow.h">

FinalProject/fragmentshader.fs

@@ -1,13 +1,148 @@
 #version 430 core
 out vec4 FragColor;
 
+struct Material {
+    sampler2D texture_diffuse1;
+    sampler2D texture_specular1;    
+    float shininess;
+};
+
+struct DirLight {
+    vec3 direction;
+	
+    vec3 ambient;
+    vec3 diffuse;
+    vec3 specular;
+};
+
+struct PointLight {
+    vec3 position;
+    
+    float constant;
+    float linear;
+    float quadratic;
+	
+    vec3 ambient;
+    vec3 diffuse;
+    vec3 specular;
+};
+
+struct SpotLight {
+    vec3 position;
+    vec3 direction;
+    float cutOff;
+    float outerCutOff;
+  
+    float constant;
+    float linear;
+    float quadratic;
+  
+    vec3 ambient;
+    vec3 diffuse;
+    vec3 specular;       
+};
+
+#define NR_POINT_LIGHTS 4
+
+in vec3 FragPos;  
+in vec3 Normal;  
 in vec2 TexCoords;
 
-uniform sampler2D texture_diffuse1;
-uniform sampler2D texture_specular1;
+
+uniform vec3 viewPos; 
+uniform DirLight dirLight;
+uniform PointLight pointLights[NR_POINT_LIGHTS];
+uniform SpotLight spotLight;
+uniform Material material;
+
+// function prototypes
+vec3 CalcDirLight(DirLight light, vec3 normal, vec3 viewDir);
+vec3 CalcPointLight(PointLight light, vec3 normal, vec3 fragPos, vec3 viewDir);
+vec3 CalcSpotLight(SpotLight light, vec3 normal, vec3 fragPos, vec3 viewDir);
 
 void main()
 {    
-    FragColor = texture(texture_specular1, TexCoords);
-    FragColor = texture(texture_diffuse1, TexCoords);
+    // properties
+    vec3 norm = normalize(Normal);
+    vec3 viewDir = normalize(viewPos - FragPos);
+    
+    // == =====================================================
+    // Our lighting is set up in 3 phases: directional, point lights and an optional flashlight
+    // For each phase, a calculate function is defined that calculates the corresponding color
+    // per lamp. In the main() function we take all the calculated colors and sum them up for
+    // this fragment's final color.
+    // == =====================================================
+    // phase 1: directional lighting
+    vec3 result = CalcDirLight(dirLight, norm, viewDir);
+    // phase 2: point lights
+    for(int i = 0; i < NR_POINT_LIGHTS; i++)
+        result += CalcPointLight(pointLights[i], norm, FragPos, viewDir);    
+    // phase 3: spot light
+    result += CalcSpotLight(spotLight, norm, FragPos, viewDir);    
+    
+    FragColor = vec4(result, 1.0);
+}
+
+// calculates the color when using a directional light.
+vec3 CalcDirLight(DirLight light, vec3 normal, vec3 viewDir)
+{
+    vec3 lightDir = normalize(-light.direction);
+    // diffuse shading
+    float diff = max(dot(normal, lightDir), 0.0);
+    // specular shading
+    vec3 reflectDir = reflect(-lightDir, normal);
+    float spec = pow(max(dot(viewDir, reflectDir), 0.0), material.shininess);
+    // combine results
+    vec3 ambient = light.ambient * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 diffuse = light.diffuse * diff * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 specular = light.specular * spec * vec3(texture(material.texture_specular1, TexCoords));
+    return (ambient + diffuse + specular);
+}
+
+// calculates the color when using a point light.
+vec3 CalcPointLight(PointLight light, vec3 normal, vec3 fragPos, vec3 viewDir)
+{
+    vec3 lightDir = normalize(light.position - fragPos);
+    // diffuse shading
+    float diff = max(dot(normal, lightDir), 0.0);
+    // specular shading
+    vec3 reflectDir = reflect(-lightDir, normal);
+    float spec = pow(max(dot(viewDir, reflectDir), 0.0), material.shininess);
+    // attenuation
+    float distance = length(light.position - fragPos);
+    float attenuation = 1.0 / (light.constant + light.linear * distance + light.quadratic * (distance * distance));    
+    // combine results
+    vec3 ambient = light.ambient * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 diffuse = light.diffuse * diff * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 specular = light.specular * spec * vec3(texture(material.texture_specular1, TexCoords));
+    ambient *= attenuation;
+    diffuse *= attenuation;
+    specular *= attenuation;
+    return (ambient + diffuse + specular);
+}
+
+// calculates the color when using a spot light.
+vec3 CalcSpotLight(SpotLight light, vec3 normal, vec3 fragPos, vec3 viewDir)
+{
+    vec3 lightDir = normalize(light.position - fragPos);
+    // diffuse shading
+    float diff = max(dot(normal, lightDir), 0.0);
+    // specular shading
+    vec3 reflectDir = reflect(-lightDir, normal);
+    float spec = pow(max(dot(viewDir, reflectDir), 0.0), material.shininess);
+    // attenuation
+    float distance = length(light.position - fragPos);
+    float attenuation = 1.0 / (light.constant + light.linear * distance + light.quadratic * (distance * distance));    
+    // spotlight intensity
+    float theta = dot(lightDir, normalize(-light.direction)); 
+    float epsilon = light.cutOff - light.outerCutOff;
+    float intensity = clamp((theta - light.outerCutOff) / epsilon, 0.0, 1.0);
+    // combine results
+    vec3 ambient = light.ambient * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 diffuse = light.diffuse * diff * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 specular = light.specular * spec * vec3(texture(material.texture_specular1, TexCoords));
+    ambient *= attenuation * intensity;
+    diffuse *= attenuation * intensity;
+    specular *= attenuation * intensity;
+    return (ambient + diffuse + specular);
 }

FinalProject/illuminant.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <GLM/glm.hpp>
+#include <string>
+#include <queue>
+
+#include "shader.h"
+#include "logger.h"
+
+class Illuminant {
+    
+};
+
+class DirLight : public Illuminant {
+
+};
+
+class SpotLight : public Illuminant {
+    
+};
+
+class PointLight : public Illuminant {
+    
+};

FinalProject/illuminant.vs

@@ -0,0 +1,11 @@
+#version 430 core
+layout (location = 0) in vec3 aPos;
+
+uniform mat4 model;
+uniform mat4 view;
+uniform mat4 projection;
+
+void main()
+{
+	gl_Position = projection * view * model * vec4(aPos, 1.0);
+}

FinalProject/lightCaster.cpp

@@ -0,0 +1,232 @@
+#include"lightCaster.h"
+
+ShaderProgram* lastShader = NULL;
+
+queue<int> available = queue<int>();
+
+Illuminant::Illuminant(){
+    Logger::debug("We do not recommend to construct illuminant without parameter");
+}
+// white color by default
+Illuminant::Illuminant(glm::vec3 position, LightType lightType){
+    _position = position;
+    setType(lightType);
+    Logger::info("55555555555");
+}
+// set up with one color
+Illuminant::Illuminant(glm::vec3 position, glm::vec3 color, LightType lightType){
+    _position = position;
+    _ambient = color * 0.05f;
+    _diffuse = color * 0.8f;
+    _specular = color;
+    setType(lightType);
+    Logger::info("4444444444444444444");
+}
+//set up by assign all colors
+Illuminant::Illuminant(glm::vec3 position, glm::vec3 ambient, 
+                        glm::vec3 diffuse, glm::vec3 specular, LightType lightType){
+    _position = position;
+    _ambient = ambient;
+    _diffuse = diffuse;
+    _specular = specular;  
+    setType(lightType);
+    Logger::info("333333333333333");
+}
+
+// set up with one color，建议平行光源使用这个
+Illuminant::Illuminant(LightType lightType, glm::vec3 direction, glm::vec3 color) {
+    _direction = direction;
+    _ambient = color * 0.05f;
+    _diffuse = color * 0.8f;
+    _specular = color;
+    setType(lightType);
+    Logger::info("22222222222222222");
+}
+
+// set up with one color，建议聚光灯光源使用这个
+Illuminant::Illuminant(glm::vec3 position, glm::vec3 direction, glm::vec3 color, LightType lightType) {
+    _direction = direction;
+    _position = position;
+    _ambient = color * 0.05f;
+    _diffuse = color * 0.8f;
+    _specular = color;
+    setType(lightType);
+    Logger::info("1111111111111111111");
+}
+
+Illuminant::~Illuminant() {
+    switchOff();
+    if (_lightType == point) {
+        available.push(this->pointID);
+    }
+
+}
+
+void Illuminant::setAttenuation(float constant, float linear, float quadratic){
+    _constant = constant;
+    _linear = linear;
+    _quadratic = quadratic;
+}
+
+glm::vec3 Illuminant::direction(){
+    return _direction;
+}
+glm::vec3 Illuminant::position(){
+    return _position;
+}
+glm::vec3 Illuminant::ambient(){
+    return _ambient;
+}
+glm::vec3 Illuminant::diffuse(){
+    return _diffuse;
+}
+glm::vec3 Illuminant::specular(){
+    return _specular;
+}
+
+Illuminant::LightType Illuminant::type(){
+    return _lightType;
+}
+
+void Illuminant::move(glm::vec3 deltaPos){
+    _position += deltaPos;
+}
+void Illuminant::setPosition(glm::vec3 Pos){
+    _position = Pos;
+}
+
+void Illuminant::setColor(glm::vec3 ambient, glm::vec3 diffuse, glm::vec3 specular){
+    _ambient = ambient;
+    _diffuse = diffuse;
+    _specular = specular;
+}
+
+// 使用默认的分配系数
+void Illuminant::setColor(glm::vec3 color){
+    _ambient = color * 0.05f;
+    _diffuse = color * 0.8f;
+    _specular = color;
+}
+void Illuminant::setDirection(glm::vec3 direction) {
+    _direction = direction;
+}
+
+void Illuminant::setType(LightType type){
+
+    if (available.size() == 0 and type == point) {
+        Logger::error("Point light number exceed!\n");
+        return;
+    }
+    _lightType = type;
+    if (type == point) {
+        pointID = available.front();
+        available.pop();
+    }
+}
+
+void Illuminant::updateLight(ShaderProgram& shader) {
+    lastShader = &shader;
+    if (_lightType == dir) {
+        // directional light
+        shader.setUniform("dirLight.direction", _direction);
+        shader.setUniform("dirLight.ambient", _ambient);
+        shader.setUniform("dirLight.diffuse", _diffuse);
+        shader.setUniform("dirLight.specular",_specular);
+    }
+    else if (_lightType == point)
+    {    // point light 1
+        string prefix = "pointLights[" + std::to_string(pointID) + "].";
+
+        shader.setUniform(prefix+"position", _position);
+        shader.setUniform(prefix + "ambient", _ambient);
+        shader.setUniform(prefix + "diffuse", _diffuse);
+        shader.setUniform(prefix + "specular", _specular);
+        shader.setUniform(prefix + "constant",_constant);
+        shader.setUniform(prefix + "linear", _linear);
+        shader.setUniform(prefix + "quadratic", _quadratic);
+         
+    }
+    else {
+        // spotLight
+        shader.setUniform("spotLight.position", _position);
+        shader.setUniform("spotLight.direction", _direction);
+        shader.setUniform("spotLight.ambient", _ambient);
+        shader.setUniform("spotLight.diffuse", _diffuse);
+        shader.setUniform("spotLight.specular", _specular);
+        shader.setUniform("spotLight.constant", _constant);
+        shader.setUniform("spotLight.linear", _linear);
+        shader.setUniform("spotLight.quadratic", _quadratic);
+        shader.setUniform("spotLight.cutOff", glm::cos(glm::radians(12.5f)));
+        shader.setUniform("spotLight.outerCutOff", glm::cos(glm::radians(15.0f)));
+    }
+
+
+}
+
+void Illuminant::switchOff() {
+    // 只要没有颜色就行了
+    setColor(glm::vec3(0.0f, 0.0f, 0.0f));
+    if (lastShader != NULL) {
+        updateLight(*lastShader);
+    }
+}
+
+void init_queue() {
+    for (int i = 0; i < Illuminant::MAXPOINTLIGHT; i++) {
+        available.push(i);
+        Logger::info("23533423q543");
+    }
+}
+
+// 如果uniform变量没有被设置，可能会出现不可预知的后果！
+void setAllLigntUniform(ShaderProgram& shader) {
+
+    shader.setUniform("dirLight.direction",0,0,-1);
+    shader.setUniform("dirLight.ambient", 0.1f, 0.1f, 0.1f);
+    shader.setUniform("dirLight.diffuse", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("dirLight.specular", 0.0f, 0.0f, 0.0f);
+    // point light 1
+    
+    shader.setUniform("pointLights[0].position", 0, 0, 0);
+    shader.setUniform("pointLights[0].ambient", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[0].diffuse", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[0].specular", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[0].constant", 1.0f);
+    shader.setUniform("pointLights[0].linear", 0.09f);
+    shader.setUniform("pointLights[0].quadratic", 0.032f);
+    // point light 2
+    shader.setUniform("pointLights[1].position", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[1].ambient", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[1].diffuse", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[1].specular", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[1].constant", 1.0f);
+    shader.setUniform("pointLights[1].linear", 0.09f);
+    shader.setUniform("pointLights[1].quadratic", 0.032f);
+    // point light 3
+    shader.setUniform("pointLights[2].position", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[2].ambient", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[2].diffuse", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[2].specular", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[2].constant", 1.0f);
+    shader.setUniform("pointLights[2].linear", 0.09f);
+    shader.setUniform("pointLights[2].quadratic", 0.032f);
+    // point light 4
+    shader.setUniform("pointLights[3].position", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[3].ambient", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[3].diffuse", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[3].specular", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("pointLights[3].constant", 1.0f);
+    shader.setUniform("pointLights[3].linear", 0.09f);
+    shader.setUniform("pointLights[3].quadratic", 0.032f);
+    // spotLight
+    shader.setUniform("spotLight.position", 0.0f, 0.0f, 3.0f);
+    shader.setUniform("spotLight.direction", -0.0f,-0.0f, -1.0f);
+    shader.setUniform("spotLight.ambient", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("spotLight.diffuse", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("spotLight.specular", 0.0f, 0.0f, 0.0f);
+    shader.setUniform("spotLight.constant", 1.0f);
+    shader.setUniform("spotLight.linear", 0.09f);
+    shader.setUniform("spotLight.quadratic", 0.032f);
+    shader.setUniform("spotLight.cutOff", glm::cos(glm::radians(12.5f)));
+    shader.setUniform("spotLight.outerCutOff", glm::cos(glm::radians(15.0f)));
+}

FinalProject/lightCaster.h

@@ -0,0 +1,86 @@
+#pragma once
+#include"shader.h"
+#include<GLM/glm.hpp>
+#include<string>
+#include"logger.h"
+#include<queue>
+
+using std::queue;
+using std::string;
+// 发光物不需要纹理，所以说需要另外的shader
+// 在sceneviewer中被包含
+class Illuminant {
+public:
+    enum LightType { dir, spot, point };
+    int pointID = -1;
+private:
+    LightType _lightType = dir;
+
+    glm::vec3 _direction = glm::vec3(0,0,-1);
+    glm::vec3 _position = glm::vec3(0.0f);
+    glm::vec3 _ambient = glm::vec3(0.05f, 0.05f, 0.05f);
+    glm::vec3 _diffuse = glm::vec3(0.8f, 0.8f, 0.8f);
+    glm::vec3 _specular = glm::vec3(0.8f, 0.8f, 0.8f);
+    
+    float _constant = 1.0f;
+    float _linear = 0.09f;
+    float _quadratic = 0.032f;
+
+
+public:
+    // 修改此处必须同步修改fragment shader的数组定义语句，目前此值最大为4
+    const static int MAXPOINTLIGHT = 4;
+
+    Illuminant();
+    // white color by default，
+    Illuminant(glm::vec3 position, LightType lightType);
+    // set up with one color，建议点光源使用这个
+    Illuminant(glm::vec3 position,glm::vec3 color, LightType lightType);
+
+    // set up with one color，建议平行光源使用这个
+    Illuminant(LightType lightType,glm::vec3 direction, glm::vec3 color);
+
+    // set up with one color，建议聚光灯光源使用这个
+    Illuminant(glm::vec3 position, glm::vec3 direction,glm::vec3 color, LightType lightType);
+
+    //set up by assign all colors
+    Illuminant(glm::vec3 position, glm::vec3 ambient, glm::vec3 diffuse, glm::vec3 specular, LightType lightType);
+
+    // 析构函数中，如果是点光源，应该增加可用点光源数目。不过暂时没有实现，在上层进行控制
+    // 无论如何，将此函数置为黑色
+    ~Illuminant();
+    void setAttenuation(float constant, float linear, float quadratic);
+
+    glm::vec3 direction();
+    glm::vec3 position();
+    glm::vec3 ambient();
+    glm::vec3 diffuse();
+    glm::vec3 specular();
+    LightType type();
+
+    void move(glm::vec3 deltaPos);
+    void setPosition(glm::vec3 Pos);
+    // 平行光与手电筒必须设置此项
+    void setDirection(glm::vec3 direction);
+
+    void setColor(glm::vec3 ambient, glm::vec3 diffuse, glm::vec3 specular);
+    // 使用默认的分配系数
+    void setColor(glm::vec3 color);
+    // 将本光源的信息传递给着色器
+    void updateLight(ShaderProgram& shader);
+
+
+
+private:
+    // 只能在最初设定光源类型，没有必要在期间修改
+    void setType(LightType type);
+
+    // 懒惰删除
+    void switchOff();
+
+};
+
+// 初始设置所有变量
+void setAllLigntUniform(ShaderProgram& lightingShader);
+
+void init_queue();

FinalProject/mesh.cpp

@@ -22,11 +22,14 @@ Mesh::Mesh(const std::vector<Vertex>& vertices, const std::vector<Texture>& text
 void Mesh::render(const ShaderProgram& shader) const {
     unsigned int diffuseNr = 1;
     unsigned int specularNr = 1;
+    shader.setUniform("material.shininess",_shininess);
     for (int i = 0; i < _textures.size(); i++) {
         OPENGL_EXTRA_FUNCTIONS->glActiveTexture(GL_TEXTURE0 + i); // activate proper texture unit before binding
         // retrieve texture number (the N in diffuse_textureN)
         std::string number;
         std::string name = _textures[i].type() == TextureType::DIFFUSE ? "texture_diffuse" : "texture_specular";
+        name = "material." + name;
+        
         if (_textures[i].type() == TextureType::DIFFUSE)
             number = std::to_string(diffuseNr++);
         else if (_textures[i].type() == TextureType::SPECULAR)

FinalProject/mesh.h

@@ -13,6 +13,9 @@ private:
     std::vector<unsigned int> _indices;
     std::vector<Texture> _textures;
 
+    // we can control shininess in mesh
+    float _shininess = 32.0f;
+
     VertexArrayObject _vao = VertexArrayObject::empty();
 
 public:
@@ -23,6 +26,9 @@ public:
     inline std::vector<Vertex> vertices() const { return _vertices; }
     inline std::vector<unsigned int> indices() const { return _indices; }
     inline std::vector<Texture> textures() const { return _textures; }
+    
+    inline float shininess() const { return _shininess; }
+    inline void setShininess(float shininess) { _shininess = shininess; }
 
     inline VertexArrayObject vao() const { return _vao; }
 
@@ -31,4 +37,4 @@ public:
 
 private:
     void setupMesh();
-};
+};

FinalProject/renderable.cpp

@@ -42,6 +42,7 @@ void Renderable::render(ShaderProgram shader) {
     }
     // Set model matrix
     shader.setUniform("model", modelMatrix());
+
     // Render
     _model->render(shader);
 }

FinalProject/sceneviewer.cpp

@@ -1,18 +1,13 @@
 #include "sceneviewer.h"
 
-#include <vector>
 #include <string>
 #include <qresource.h>
 #include <qurl.h>
 #include <qdir.h>
+#include<time.h>
 
-#include "vbo.h"
-#include "vao.h"
-#include "shader.h"
-#include "logger.h"
-#include "model.h"
+#include "lightCaster.h"
 
-using std::vector;
 
 SceneViewer::SceneViewer(QWidget* parent)
 	: QOpenGLWidget(parent)
@@ -22,38 +17,50 @@ SceneViewer::SceneViewer(QWidget* parent)
     format.setProfile(QSurfaceFormat::CoreProfile);
     format.setVersion(4, 3);
     setFormat(format);
-    
-    // Create a folder
-    QDir dir("./temp/shaders");
-    if (!dir.exists()) {
-        dir.mkpath(".");
+
+    // Create temp folder
+    QDir dir;
+    if (!dir.exists("./temp"))
+    {
+        dir.mkdir("./temp");
+    }
+    if (!dir.exists("./temp/shaders"))
+    {
+        dir.mkdir("./temp/shaders");
     }
     
-    // Copy the shaders to the folder
-    if (QFile::exists("./temp/shaders/vertexshader.vs")) {
-        QFile::remove("./temp/shaders/vertexshader.vs");
-    }
-    QFile::copy(":/shaders/vertexshader.vs", "./temp/shaders/vertexshader.vs");
-    QFile::setPermissions("./temp/shaders/vertexshader.vs", QFileDevice::ReadOwner | QFileDevice::WriteOwner);
-    if (QFile::exists("./temp/shaders/fragmentshader.fs")) {
-        QFile::remove("./temp/shaders/fragmentshader.fs");
-    }
-    QFile::copy(":/shaders/fragmentshader.fs", "./temp/shaders/fragmentshader.fs");
-    QFile::setPermissions("./temp/shaders/fragmentshader.fs", QFile::ReadOwner | QFile::WriteOwner);
+    // Copy the shaders to the temp folder
+    extractShaderResorce("vertexshader.vs");
+    extractShaderResorce("fragmentshader.fs");
+    extractShaderResorce("illuminant.vs");
+    extractShaderResorce("illuminant.fs");
 }
 
 SceneViewer::~SceneViewer() {
+    
+}
 
+void SceneViewer::extractShaderResorce(const QString& shaderName) {
+    QString shaderResourcePath = ":/shaders/" + shaderName;
+    QString shaderTempPath = "./temp/shaders/" + shaderName;
+    
+    if (QFile::exists(shaderTempPath))
+    {
+        QFile::remove(shaderTempPath);
+    }
+    QFile::copy(shaderResourcePath, shaderTempPath);
+    QFile::setPermissions(shaderTempPath, QFile::ReadOwner | QFile::WriteOwner);
 }
 
 void SceneViewer::initializeGL() {
     initializeOpenGLFunctions();
-
+    
     glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
     glEnable(GL_DEPTH_TEST);
-
+    glEnable(GL_FRAMEBUFFER_SRGB);
+	
     Logger::info("Currently running on OpenGL version: " + std::string((const char*)glGetString(GL_VERSION)));
 
     _shaderProgram.ensureInitialized();
@@ -65,8 +72,16 @@ void SceneViewer::initializeGL() {
     _shaderProgram.attachShader(fragmentShader);
     vertexShader.dispose();
     fragmentShader.dispose();
+
+    setAllLigntUniform(_shaderProgram);
+    init_queue();
+
+    addDirLight(glm::vec3(0.3, 0.5, -1), glm::vec3(0.2, 0.1, 0.2));
+    addSpotLight(glm::vec3(0.3, 0.5, -1), glm::vec3(-0.3, -0.5, 3), glm::vec3(0.2, 1, 0.1));
+    addPointLight(glm::vec3(0.5, 0.9, 0.4), glm::vec3(1, 0.2, 0.4));
+    addPointLight(glm::vec3(-0.3, -0.9, 0.4), glm::vec3(0, 0.2, 0.9));
     
-    _camera.setPosition(glm::vec3(0.0f, 0.0f, 10.0f));
+    _camera.setPosition(glm::vec3(0.0f, 0.0f, 5.0f));
 }
 
 void SceneViewer::resizeGL(int w, int h) {
@@ -85,6 +100,8 @@ void SceneViewer::paintGL() {
     glm::mat4 projection = glm::perspective(glm::radians(_camera.zoomVal()), (float)width() / (float)height(), 0.1f, 100.0f);
     _shaderProgram.setUniform("view", view);
     _shaderProgram.setUniform("projection", projection);
+    
+    update_light();
 
     for (auto object : _objects) {
         object.render(_shaderProgram);
@@ -193,3 +210,24 @@ void SceneViewer::resizeEvent(QResizeEvent* event) {
     //mask.addRoundedRect(rect(), _cornerRadius, _cornerRadius);
     //setMask(mask.toFillPolygon().toPolygon());
 }
+
+
+void SceneViewer::update_light() {
+    setAllLigntUniform(_shaderProgram);
+    for (int i = 0; i < _illuminants.size(); i++) {
+        _illuminants[i].updateLight(_shaderProgram);
+    }
+}
+
+void SceneViewer::addDirLight(glm::vec3 direction, glm::vec3 color) {
+    _illuminants.push_back(Illuminant(Illuminant::LightType::dir, direction,color));
+}
+void SceneViewer::addPointLight(glm::vec3 position, glm::vec3 color) {
+    _illuminants.push_back(Illuminant(position, color, Illuminant::LightType::point));
+}
+void SceneViewer::addSpotLight(glm::vec3 direction, glm::vec3 position, glm::vec3 color) {
+    _illuminants.push_back(Illuminant(position,direction, color, Illuminant::LightType::spot));
+}
+void SceneViewer::deleteLight(int index) {
+    _illuminants.erase(_illuminants.begin() + index);
+}

FinalProject/sceneviewer.h

@@ -4,7 +4,6 @@
 #include <qevent.h>
 #include <qopenglfunctions.h>
 #include <QtOpenGLWidgets/qopenglwidget.h>
-
 #include <vector>
 
 #include "camera.h"
@@ -12,6 +11,11 @@
 #include "renderable.h"
 #include "vao.h"
 #include "utils.h"
+#include "lightCaster.h"
+#include "vbo.h"
+#include "logger.h"
+#include "model.h"
+
 
 class SceneViewer : public QOpenGLWidget, protected QOpenGLFunctions
 {
@@ -21,6 +25,8 @@ private:
     // OpenGL section-------------------------------------
     // List of objects currently in the scene
     std::vector<Renderable> _objects;
+    // List of light casters in the scene
+    std::vector<Illuminant> _illuminants;
     // Shader program for objects
     ShaderProgram _shaderProgram = ShaderProgram::empty();
     // Main camera
@@ -42,6 +48,14 @@ private:
 public:
 	SceneViewer(QWidget* parent = 0);
 	~SceneViewer();
+    void update_light();
+    void addDirLight(glm::vec3 direction, glm::vec3 color);
+    void addPointLight(glm::vec3 position, glm::vec3 color);
+    void addSpotLight(glm::vec3 direction,glm::vec3 position, glm::vec3 color);
+    void deleteLight(int index);
+
+private:
+    void extractShaderResorce(const QString& shaderName);
 
 protected:
     // OpenGL functions

FinalProject/vertexshader.vs

@@ -3,6 +3,8 @@ layout (location = 0) in vec3 aPos;
 layout (location = 1) in vec3 aNormal;
 layout (location = 2) in vec2 aTexCoords;
 
+out vec3 FragPos;
+out vec3 Normal;
 out vec2 TexCoords;
 
 uniform mat4 model;
@@ -11,6 +13,9 @@ uniform mat4 projection;
 
 void main()
 {
-    TexCoords = aTexCoords;    
-    gl_Position = projection * view * model * vec4(aPos, 1.0);
+    FragPos = vec3(model * vec4(aPos, 1.0));
+    Normal = mat3(transpose(inverse(model))) * aNormal; 
+    TexCoords = aTexCoords;  
+      
+    gl_Position = projection * view * vec4(FragPos, 1.0);
 }