glfw and car obj

glfw/Makefile

+all: playground.cpp
+	clang++ -o ./bin/playground playground.cpp ./common/loadShader.cpp -Wall -std=c++11 -stdlib=libc++ -lglfw -lglew -framework OpenGL
+
+run: playground.cpp
+	clang++ -o ./bin/playground playground.cpp ./common/loadShader.cpp -Wall -std=c++11 -stdlib=libc++ -lglfw -lglew -framework OpenGL
+	./bin/playground
+
+clean:
+	rm -R bin && mkdir bin
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glfw/common/SimpleFragmentShader.fragmentshader

+#version 330 core
+out vec3 color;
+void main(){
+  color = vec3(1,0,0);
+}
\ No newline at end of file

glfw/common/SimpleVertexShader.vertexshader

+#version 330 core
+
+layout(location = 0) in vec3 vertexPosition_modelspace;
+
+void main(){
+    gl_Position.xyz = vertexPosition_modelspace;
+    gl_Position.w = 1.0;
+}
\ No newline at end of file

glfw/common/loadShader.cpp

+#include "loadShader.hpp"
+
+GLuint LoadShaders(const char * vertex_file_path,const char * fragment_file_path){
+
+	// Create the shaders
+	GLuint VertexShaderID = glCreateShader(GL_VERTEX_SHADER);
+	GLuint FragmentShaderID = glCreateShader(GL_FRAGMENT_SHADER);
+
+	// Read the Vertex Shader code from the file
+	std::string VertexShaderCode;
+	std::ifstream VertexShaderStream(vertex_file_path, std::ios::in);
+	if(VertexShaderStream.is_open()){
+		std::stringstream sstr;
+		sstr << VertexShaderStream.rdbuf();
+		VertexShaderCode = sstr.str();
+		VertexShaderStream.close();
+	}else{
+		printf("Impossible to open %s. Are you in the right directory ? Don't forget to read the FAQ !\n", vertex_file_path);
+		getchar();
+		return 0;
+	}
+
+	// Read the Fragment Shader code from the file
+	std::string FragmentShaderCode;
+	std::ifstream FragmentShaderStream(fragment_file_path, std::ios::in);
+	if(FragmentShaderStream.is_open()){
+		std::stringstream sstr;
+		sstr << FragmentShaderStream.rdbuf();
+		FragmentShaderCode = sstr.str();
+		FragmentShaderStream.close();
+	}
+
+	GLint Result = GL_FALSE;
+	int InfoLogLength;
+
+	// Compile Vertex Shader
+	printf("Compiling shader : %s\n", vertex_file_path);
+	char const * VertexSourcePointer = VertexShaderCode.c_str();
+	glShaderSource(VertexShaderID, 1, &VertexSourcePointer , NULL);
+	glCompileShader(VertexShaderID);
+
+	// Check Vertex Shader
+	glGetShaderiv(VertexShaderID, GL_COMPILE_STATUS, &Result);
+	glGetShaderiv(VertexShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength);
+	if ( InfoLogLength > 0 ){
+		std::vector<char> VertexShaderErrorMessage(InfoLogLength+1);
+		glGetShaderInfoLog(VertexShaderID, InfoLogLength, NULL, &VertexShaderErrorMessage[0]);
+		printf("%s\n", &VertexShaderErrorMessage[0]);
+	}
+
+	// Compile Fragment Shader
+	printf("Compiling shader : %s\n", fragment_file_path);
+	char const * FragmentSourcePointer = FragmentShaderCode.c_str();
+	glShaderSource(FragmentShaderID, 1, &FragmentSourcePointer , NULL);
+	glCompileShader(FragmentShaderID);
+
+	// Check Fragment Shader
+	glGetShaderiv(FragmentShaderID, GL_COMPILE_STATUS, &Result);
+	glGetShaderiv(FragmentShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength);
+	if ( InfoLogLength > 0 ){
+		std::vector<char> FragmentShaderErrorMessage(InfoLogLength+1);
+		glGetShaderInfoLog(FragmentShaderID, InfoLogLength, NULL, &FragmentShaderErrorMessage[0]);
+		printf("%s\n", &FragmentShaderErrorMessage[0]);
+	}
+
+	// Link the program
+	printf("Linking program\n");
+	GLuint ProgramID = glCreateProgram();
+	glAttachShader(ProgramID, VertexShaderID);
+	glAttachShader(ProgramID, FragmentShaderID);
+	glLinkProgram(ProgramID);
+
+	// Check the program
+	glGetProgramiv(ProgramID, GL_LINK_STATUS, &Result);
+	glGetProgramiv(ProgramID, GL_INFO_LOG_LENGTH, &InfoLogLength);
+	if ( InfoLogLength > 0 ){
+		std::vector<char> ProgramErrorMessage(InfoLogLength+1);
+		glGetProgramInfoLog(ProgramID, InfoLogLength, NULL, &ProgramErrorMessage[0]);
+		printf("%s\n", &ProgramErrorMessage[0]);
+	}
+	
+	glDetachShader(ProgramID, VertexShaderID);
+	glDetachShader(ProgramID, FragmentShaderID);
+	
+	glDeleteShader(VertexShaderID);
+	glDeleteShader(FragmentShaderID);
+
+	return ProgramID;
+}
\ No newline at end of file

glfw/common/loadShader.hpp

+// Include standard headers
+#include <stdio.h>
+#include <stdlib.h>
+#include <iostream>
+#include <fstream>
+#include <vector>
+#include <sstream>
+
+// Include GLEW. Always include it before gl.h and glfw3.h, since it's a bit magic.
+#include <GL/glew.h>
+
+// Include GLFW
+#include <GLFW/glfw3.h>
+
+GLuint LoadShaders(const char * vertex_file_path,const char * fragment_file_path);
\ No newline at end of file

glfw/common/playground.cpp

+// Include standard headers
+#include <stdio.h>
+#include <stdlib.h>
+#include <iostream>
+#include <fstream>
+#include <vector>
+#include <sstream>
+// Include GLEW. Always include it before gl.h and glfw3.h, since it's a bit magic.
+#include <GL/glew.h>
+// Include GLFW
+#include <GLFW/glfw3.h>
+#include <GLES3/gl3.h>
+// Include GLM
+#include <glm/glm.hpp>
+#include "loadShader.hpp"
+using namespace glm;
+
+int main(){
+    // Initialise GLFW
+    glewExperimental = true; // Needed for core profile
+    if( !glfwInit() )
+    {
+        fprintf( stderr, "Failed to initialize GLFW\n" );
+        return -1;
+    }
+    glfwWindowHint(GLFW_SAMPLES, 4); // 4x antialiasing
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); // We want OpenGL 3.3
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // To make MacOS happy; should not be needed
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // We don't want the old OpenGL 
+
+    // Open a window and create its OpenGL context
+    GLFWwindow* window; // (In the accompanying source code, this variable is global for simplicity)
+    window = glfwCreateWindow( 1024, 768, "Tutorial 01", NULL, NULL);
+    if( window == NULL ){
+        fprintf( stderr, "Failed to open GLFW window. If you have an Intel GPU, they are not 3.3 compatible. Try the 2.1 version of the tutorials.\n" );
+        glfwTerminate();
+        return -1;
+    }
+    glfwMakeContextCurrent(window); // Initialize GLEW
+    glewExperimental=true; // Needed in core profile
+    if (glewInit() != GLEW_OK) {
+        fprintf(stderr, "Failed to initialize GLEW\n");
+        return -1;
+    }
+
+    GLuint VertexArrayID;
+    glGenVertexArrays(1, &VertexArrayID);
+    glBindVertexArray(VertexArrayID);
+
+    // An array of 3 vectors which represents 3 vertices
+    static const GLfloat g_vertex_buffer_data[] = {
+    -1.0f, -1.0f, 0.0f,
+    1.0f, -1.0f, 0.0f,
+    0.0f,  1.0f, 0.0f,
+    };
+
+    // This will identify our vertex buffer
+    GLuint vertexbuffer;
+    // Generate 1 buffer, put the resulting identifier in vertexbuffer
+    glGenBuffers(1, &vertexbuffer);
+    // The following commands will talk about our 'vertexbuffer' buffer
+    glBindBuffer(GL_ARRAY_BUFFER, vertexbuffer);
+    // Give our vertices to OpenGL.
+    glBufferData(GL_ARRAY_BUFFER, sizeof(g_vertex_buffer_data), g_vertex_buffer_data, GL_STATIC_DRAW);
+
+    // Ensure we can capture the escape key being pressed below
+    glfwSetInputMode(window, GLFW_STICKY_KEYS, GL_TRUE);
+
+    // Create and compile our GLSL program from the shaders
+    GLuint programID = LoadShaders( "SimpleVertexShader.vertexshader", "SimpleFragmentShader.fragmentshader" );
+
+    do{
+        // Clear the screen. It's not mentioned before Tutorial 02, but it can cause flickering, so it's there nonetheless.
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+        // Use our shader
+        glUseProgram(programID);
+        // Draw nothing, see you in tutorial 2 !
+        // 1st attribute buffer : vertices
+        glEnableVertexAttribArray(0);
+        glBindBuffer(GL_ARRAY_BUFFER, vertexbuffer);
+        glVertexAttribPointer(
+        0,                  // attribute 0. No particular reason for 0, but must match the layout in the shader.
+        3,                  // size
+        GL_FLOAT,           // type
+        GL_FALSE,           // normalized?
+        0,                  // stride
+        (void*)0            // array buffer offset
+        );
+        // Draw the triangle !
+        glDrawArrays(GL_TRIANGLES, 0, 3); // Starting from vertex 0; 3 vertices total -> 1 triangle
+        glDisableVertexAttribArray(0);
+
+        // Swap buffers
+        glfwSwapBuffers(window);
+        glfwPollEvents();
+
+    } // Check if the ESC key was pressed or the window was closed
+    while( glfwGetKey(window, GLFW_KEY_ESCAPE ) != GLFW_PRESS &&
+        glfwWindowShouldClose(window) == 0 );
+}
\ No newline at end of file

glfw/playground.cpp

+// Include standard headers
+#include <stdio.h>
+#include <stdlib.h>
+#include <iostream>
+#include <fstream>
+#include <vector>
+#include <sstream>
+// Include GLEW. Always include it before gl.h and glfw3.h, since it's a bit magic.
+#include <GL/glew.h>
+// Include GLFW
+#include <GLFW/glfw3.h>
+// Include GLM
+#include "common/loadShader.hpp"
+
+int main(){
+    // Initialise GLFW
+    glewExperimental = true; // Needed for core profile
+    if( !glfwInit() )
+    {
+        fprintf( stderr, "Failed to initialize GLFW\n" );
+        return -1;
+    }
+    glfwWindowHint(GLFW_SAMPLES, 4); // 4x antialiasing
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); // We want OpenGL 3.3
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // To make MacOS happy; should not be needed
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // We don't want the old OpenGL 
+
+    // Open a window and create its OpenGL context
+    GLFWwindow* window; // (In the accompanying source code, this variable is global for simplicity)
+    window = glfwCreateWindow( 1024, 768, "Tutorial 01", NULL, NULL);
+    if( window == NULL ){
+        fprintf( stderr, "Failed to open GLFW window. If you have an Intel GPU, they are not 3.3 compatible. Try the 2.1 version of the tutorials.\n" );
+        glfwTerminate();
+        return -1;
+    }
+    glfwMakeContextCurrent(window); // Initialize GLEW
+    glewExperimental=true; // Needed in core profile
+    if (glewInit() != GLEW_OK) {
+        fprintf(stderr, "Failed to initialize GLEW\n");
+        return -1;
+    }
+
+    GLuint VertexArrayID;
+    glGenVertexArrays(1, &VertexArrayID);
+    glBindVertexArray(VertexArrayID);
+
+    // An array of 3 vectors which represents 3 vertices
+    static const GLfloat g_vertex_buffer_data[] = {
+    -1.0f, -1.0f, 0.0f,
+    1.0f, -1.0f, 0.0f,
+    0.0f,  1.0f, 0.0f,
+    };
+
+    // This will identify our vertex buffer
+    GLuint vertexbuffer;
+    // Generate 1 buffer, put the resulting identifier in vertexbuffer
+    glGenBuffers(1, &vertexbuffer);
+    // The following commands will talk about our 'vertexbuffer' buffer
+    glBindBuffer(GL_ARRAY_BUFFER, vertexbuffer);
+    // Give our vertices to OpenGL.
+    glBufferData(GL_ARRAY_BUFFER, sizeof(g_vertex_buffer_data), g_vertex_buffer_data, GL_STATIC_DRAW);
+
+    // Ensure we can capture the escape key being pressed below
+    glfwSetInputMode(window, GLFW_STICKY_KEYS, GL_TRUE);
+
+    // Create and compile our GLSL program from the shaders
+    GLuint programID = LoadShaders( "common/SimpleVertexShader.vertexshader", "common/SimpleFragmentShader.fragmentshader" );
+
+    do{
+        // Clear the screen. It's not mentioned before Tutorial 02, but it can cause flickering, so it's there nonetheless.
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+        // Use our shader
+        glUseProgram(programID);
+        // Draw nothing, see you in tutorial 2 !
+        // 1st attribute buffer : vertices
+        glEnableVertexAttribArray(0);
+        glBindBuffer(GL_ARRAY_BUFFER, vertexbuffer);
+        glVertexAttribPointer(
+        0,                  // attribute 0. No particular reason for 0, but must match the layout in the shader.
+        3,                  // size
+        GL_FLOAT,           // type
+        GL_FALSE,           // normalized?
+        0,                  // stride
+        (void*)0            // array buffer offset
+        );
+        // Draw the triangle !
+        glDrawArrays(GL_TRIANGLES, 0, 3); // Starting from vertex 0; 3 vertices total -> 1 triangle
+        glDisableVertexAttribArray(0);
+
+        // Swap buffers
+        glfwSwapBuffers(window);
+        glfwPollEvents();
+
+    } // Check if the ESC key was pressed or the window was closed
+    while( glfwGetKey(window, GLFW_KEY_ESCAPE ) != GLFW_PRESS &&
+        glfwWindowShouldClose(window) == 0 );
+}
\ No newline at end of file