C++ 正在尝试在OpenGL中实现第二个纹理
所以我创建了这个场景，但我不确定如何对我创建的另一个对象实现不同的纹理。渲染的场景： 当前在渲染场景时，我得到了两个对象，但没有显示纹理的第二个对象（表）。这将很容易实现相同的纹理，但我想做的是添加一个不同的纹理表。在尝试调整功能时，我尝试执行以下操作： 但却遭遇了黑屏。虽然我认为这一尝试可能是正确方向上的正确步骤（我可能是错误的），但我不确定如何将纹理附加到顶点数组。我有下面的原始代码（由于后期字符限制，删除了鼠标功能）。提前道歉我必须删除一些代码才能发布问题。光源着色器等C++ 正在尝试在OpenGL中实现第二个纹理,c++,opengl,texture-mapping,C++,Opengl,Texture Mapping,所以我创建了这个场景，但我不确定如何对我创建的另一个对象实现不同的纹理。渲染的场景： 当前在渲染场景时，我得到了两个对象，但没有显示纹理的第二个对象（表）。这将很容易实现相同的纹理，但我想做的是添加一个不同的纹理表。在尝试调整功能时，我尝试执行以下操作： 但却遭遇了黑屏。虽然我认为这一尝试可能是正确方向上的正确步骤（我可能是错误的），但我不确定如何将纹理附加到顶点数组。我有下面的原始代码（由于后期字符限制，删除了鼠标功能）。提前道歉我必须删除一些代码才能发布问题。光源着色器等 `#i
`#include <iostream>`
#include <GL/glew.h>
#include <GL/freeglut.h>
#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/gtc/type_ptr.hpp>
//SOIL image loader inclusion
#include "SOIL2/SOIL2.h"
using namespace std;
#define WINDOW_TITLE "ms 330"
#ifndef GLSL
#define GLSL(Version, Source) "#version " #Version "\n" #Source
#endif
GLint shaderProgram, WindowWidth = 800, WindowHeight = 600;
GLuint VBO, VAO, EBO, texture;
GLfloat degrees = glm::radians(0.0f);
GLfloat cameraRotation = glm::radians(-45.0f);
GLfloat cameraSpeed = 0.0005f; // movement speed per frame
GLchar currentKey; //will store key pressed
//Cube and light color
glm::vec3 lightColor(0.78f, 0.88f, 1.0f); //applied overcast sky like 201,226,255 rbg values equal
glm::vec3 secondLightColor(0.49f, 0.43f, 0.40f); //applied light brown to second color
//Light position and scale
glm::vec3 lightPosition(-1.0f, 2.0f, -3.0f);
glm::vec3 lightScale(0.3f);
glm::vec3 lightStrength(1.0f, 1.0f, 0.25f);//ambient specular highlight
//set scale by axis numbers
GLfloat scale_by_y = 1.0f;
GLfloat scale_by_x = 1.0f;
GLfloat scale_by_z = 1.0f;
GLfloat lastMouseX = 400, lastMouseY = 300; // Locks mouse cursor at center of screen
GLfloat mouseXOffset, mouseYOffset, yaw = 0.0f, pitch = 0.0f, zoom = 0.0f; // mouse offset, yaw, and pitch variables
GLfloat sensitivity = 0.005f; // used for mouse/camera rotation sensitivity
//vstate for view state set at perspective intially
int vstate = 1;
//for keymod for glutmodifers
int keymod;
bool checkMotion = false;
bool leftMouseButton = false;
bool rightMouseButton = false;
bool altDown = false;
//Global vector declarations
glm::vec3 cameraPosition = glm::vec3(0.0f, 0.0f, -5.0f); // initial camera position placed 5 units in z
glm::vec3 CameraUpY = glm::vec3(0.0f, 1.0f, 0.0f); // temporary y unit vector
glm::vec3 CameraForwardZ = glm::vec3(0.0f, 0.0f, -1.0f); // temporary z unit vector
glm::vec3 front; // temporary z unit vector for mouse
glm::vec3 cameraRotateAmt;
void UResizeWindow(int,int);
void URenderGraphics(void);
void UCreateShader(void);
void UCreateBuffers(void);
void UMouseMove(int x, int y);
void UMouseClick(int button, int state, int x, int y);
void UGenerateTexture(void);
void UKeyboard(unsigned char key, int x, int y);
void UKeyReleased(unsigned char key, int x, int y);
//VERTEX SHADER SOURCE CODE
const GLchar * vertexShaderSource = GLSL(330,
layout (location = 0) in vec3 position; //vertex data from vertex attrib pointer 0
layout (location = 2) in vec2 textureCoordinate;
out vec2 mobileTextureCoordinate;
//global variables for the transform matrices
uniform mat4 model;
uniform mat4 view;
uniform mat4 projection;
void main(){
gl_Position = projection * view * model * vec4(position, 1.0f); //transforms vertices to clip coordinates
mobileTextureCoordinate = vec2(textureCoordinate.x, 1.0f - textureCoordinate.y); //flips the texture horizontal
}
);
//FRAGMENT SHADER SOURCE CODE
const GLchar * fragmentShaderSource = GLSL(330,
in vec2 mobileTextureCoordinate;
out vec4 gpuTexture; //variable to pass color data to the GPU
uniform sampler2D uTexture; //Useful when working with multiple textures
void main(){
gpuTexture = texture(uTexture, mobileTextureCoordinate);
}
);
//LIGHT VERTEX SHADER CODE
const GLchar * lightVertexShaderSource = GLSL(330,
layout (location = 0) in vec3 position; //VAP position 0 for vertex position data
layout (location = 1) in vec3 normal; //VAP position 1 for normals
layout (location = 2) in vec2 textureCoordinate;
out vec3 Normal; //for outgoing normals to fragment shader
out vec3 FragmentPos; // for outgoing color / pixels to fragment shader
out vec2 mobileTextureCoordinate; // uv coords for texture
//uniform / global variables for the transform matrices
uniform mat4 model;
uniform mat4 view;
uniform mat4 projection;
void main(){
gl_Position = projection * view * model * vec4(position, 1.0f);//Transforms vertices into clip coordinates
Normal = mat3(transpose(inverse(model))) * normal; // get normal vectors in world space only and exclude normal translation properties
FragmentPos = vec3(model * vec4(position, 1.0f)); //Gets fragment / pixel position in world space only (exclude view and projection)
mobileTextureCoordinate = vec2(textureCoordinate.x, 1.0f - textureCoordinate.y); //flips the texture horizontal
}
);
//MAIN PROGRAM
int main(int argc, char * argv[]) {
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);
glutInitWindowSize(WindowWidth, WindowHeight);
glutCreateWindow(WINDOW_TITLE);
glutReshapeFunc(UResizeWindow);
glewExperimental = GL_TRUE;
if(glewInit() != GLEW_OK) {
std::cout << "Failed to initialize GLEW" << std:: endl;
return -1;
}
UCreateShader();
UCreateBuffers(); // Call Buffer function
UGenerateTexture();
glUseProgram(shaderProgram); //Use Shader Program
glClearColor(0.0f, 0.0f, 0.0f, 1.0f); // Set background color
glutDisplayFunc(URenderGraphics);
glutMainLoop();
//Destroy Buffer objects once used
glDeleteVertexArrays(1,&VAO);
glDeleteBuffers(1, &VBO);
glDeleteBuffers(1, &EBO);
return 0;
}
/*Resize window*/
void UResizeWindow(int w, int h) {
WindowWidth = w;
WindowHeight = h;
glViewport(0, 0, WindowWidth, WindowHeight);
}
/*Renders graphics*/
void URenderGraphics(void) {
glEnable(GL_DEPTH_TEST); // enable z-depth
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clears the screen
glBindVertexArray(VAO); // Activate vertex array object before rendering and transforming them
//Transform object
glm::mat4 model;
model = glm::scale(model, glm::vec3(6.0f, 6.0f, 6.0f)); //Increase the object size by a scale of 6
model = glm::rotate(model, degrees, glm::vec3(0.0, 1.0f, 0.0f)); //Rotate the object y -45 degrees
model = glm::translate(model, glm::vec3(0.0, 0.0f, 0.0f)); //Place the object at the center of the viewport
model = glm::scale(model, glm::vec3(scale_by_x,scale_by_y,scale_by_z)); // Increase scale of object by scale of xyz
//transform camera
glm::mat4 view;
view = glm::lookAt(cameraPosition, CameraForwardZ, CameraUpY);
view = glm::rotate(view, cameraRotateAmt.x, glm::vec3(0.0f, 1.0f, 0.0f));
view = glm::rotate(view, cameraRotateAmt.y, glm::vec3(1.0f, 0.0f, 0.0f));
//transform projection
glm::mat4 projection;
if(vstate == 1){
projection = glm::perspective(45.0f, (GLfloat)WindowWidth / (GLfloat)WindowHeight, 0.1f, 100.0f);
}else if(vstate == 0){
projection = glm::ortho(-5.0f, 5.0f, -5.0f, 5.0f, 0.1f, 100.0f);
}
//Retrieves and passes transform matrices to the shader program
GLint modelLoc = glGetUniformLocation(shaderProgram, "model");
GLint viewLoc = glGetUniformLocation(shaderProgram, "view");
GLint projectionLoc = glGetUniformLocation(shaderProgram, "projection");
GLint secondLightColorLoc, lightColorLoc, lightPositionLoc, lightStrengthLoc, viewPositionLoc;
glUniformMatrix4fv(modelLoc, 1, GL_FALSE, glm::value_ptr(model));
glUniformMatrix4fv(viewLoc, 1, GL_FALSE, glm::value_ptr(view));
glUniformMatrix4fv(projectionLoc, 1, GL_FALSE, glm::value_ptr(projection));
lightColorLoc = glGetUniformLocation(shaderProgram, "lightColor");
lightPositionLoc = glGetUniformLocation(shaderProgram, "lightPos");
lightStrengthLoc = glGetUniformLocation(shaderProgram, "lightStrength");
secondLightColorLoc = glGetUniformLocation(shaderProgram, "secondLightColor");
viewPositionLoc = glGetUniformLocation(shaderProgram, "viewPosition");
//pass color, light, and camera data to the cube shader programs corresponding uniforms
glUniform3f(lightColorLoc, lightColor.r, lightColor.g, lightColor.b);
glUniform3f(secondLightColorLoc, secondLightColor.r, secondLightColor.g, secondLightColor.b);
glUniform3f(lightPositionLoc, lightPosition.x, lightPosition.y, lightPosition.z);
glUniform3f(lightStrengthLoc, lightStrength.x, lightStrength.y, lightStrength.z);
glUniform3f(viewPositionLoc, cameraPosition.x, cameraPosition.y, cameraPosition.z);
glutPostRedisplay();
glBindTexture(GL_TEXTURE_2D, texture);
glDrawElements(GL_TRIANGLES, 1000, GL_UNSIGNED_INT, 0); //Draw triangles
glBindVertexArray(0); // Deactivate vertex array object
glutSwapBuffers(); // Flips back buffer with front buffer every frame
}
//CREATE SHADER PROGRAMS
void UCreateShader() {
//Vertex Shader
GLint vertexShader = glCreateShader(GL_VERTEX_SHADER); // create vertex shader
glShaderSource(vertexShader, 1, &lightVertexShaderSource, NULL); // attach vertex shader to source code
glCompileShader(vertexShader); // compile vertex shader
//Fragment Shader
GLint fragmentShader = glCreateShader(GL_FRAGMENT_SHADER); // create fragment shader
glShaderSource(fragmentShader, 1, &lightFragmentShaderSource, NULL); // attach fragment shader to source code
glCompileShader(fragmentShader); // compile fragment shader
//Shader program
shaderProgram = glCreateProgram(); // create shader program and return ID
glAttachShader(shaderProgram, vertexShader); // attach vertex shader to program
glAttachShader(shaderProgram, fragmentShader); // attach fragment shader to program
glLinkProgram(shaderProgram); // link vertex and fragment shaders to program
//Delete vertex and fragment shaders once linked
glDeleteShader(vertexShader);
glDeleteShader(fragmentShader);
}
//CREAT BUFFERS AND OBJECTS
void UCreateBuffers() {
//Position and color data
GLfloat vertices[] = {
//X //Y //Z //NORMALS //TEXTURE COOR
//chair leg one
0.6f, -1.0f, 0.0f, 0.17f, 0.11f, 0.05f, 1.0f, 0.0f, //0
0.5f, -1.0f, 0.0f, 0.17f, 0.11f, 0.05f, 0.75f, 0.0f, //1
0.6f, -1.0f, -0.1f, 0.17f, 0.11f, 0.05f, 0.0f, 0.0f, //2
0.5f, -1.0f, -0.1f, 0.17f, 0.11f, 0.05f, 0.5f, 0.0f, //3
0.6f, 0.0f, 0.0f, 0.17f, 0.11f, 0.05f, 1.0f, 1.0f, //4
0.5f, 0.0f, 0.0f, 0.17f, 0.11f, 0.05f, 0.75f, 1.0f, //5
0.6f, 0.0f, -0.1f, 0.17f, 0.11f, 0.05f, 0.0f, 1.0f, //6
0.5f, 0.0f, -0.1f, 0.17f, 0.11f, 0.05f, 0.5f, 1.0f, //7
//chair leg two
-0.6f, -1.0f, 0.0f, 0.17f, 0.11f, 0.05f, 1.0f, 0.0f, //8
-0.5f, -1.0f, 0.0f, 0.17f, 0.11f, 0.05f, 0.75f,0.0f, //9
-0.6f, -1.0f, -0.1f, 0.17f, 0.11f, 0.05f, 0.0f, 0.0f, //10
-0.5f, -1.0f, -0.1f, 0.17f, 0.11f, 0.05f, 0.5f, 0.0f, //11
-0.6f, 0.0f, 0.0f, 0.17f, 0.11f, 0.05f, 1.0f, 1.0f, //12
-0.5f, 0.0f, 0.0f, 0.17f, 0.11f, 0.05f, 0.75f,1.0f, //13
-0.6f, 0.0f, -0.1f, 0.17f, 0.11f, 0.05f, 0.0f, 1.0f, //14
-0.5f, 0.0f, -0.1f, 0.17f, 0.11f, 0.05f, 0.5f, 1.0f, //15
//chair leg three
0.6f, -1.0f, -0.9f, 0.17f, 0.11f, 0.05f, 1.0f, 0.0f, //16
0.5f, -1.0f, -0.9f, 0.17f, 0.11f, 0.05f, 0.75f,0.0f, //17
0.6f, -1.0f, -1.0f, 0.17f, 0.11f, 0.05f, 0.0f, 0.0f, //18
0.5f, -1.0f, -1.0f, 0.17f, 0.11f, 0.05f, 0.5f, 0.0f, //19
0.6f, 0.0f, -0.9f, 0.17f, 0.11f, 0.05f, 1.0f, 1.0f, //20
0.5f, 0.0f, -0.9f, 0.17f, 0.11f, 0.05f, 0.75f,1.0f, //21
0.6f, 0.0f, -1.0f, 0.17f, 0.11f, 0.05f, 0.0f, 1.0f, //22
0.5f, 0.0f, -1.0f, 0.17f, 0.11f, 0.05f, 0.5f, 1.0f, //23
//chair leg four
-0.6f, -1.0f, -0.9f, 0.17f, 0.11f, 0.05f, 1.0f, 0.0f, //24
-0.5f, -1.0f, -0.9f, 0.17f, 0.11f, 0.05f, 0.75f,0.0f, //25
-0.6f, -1.0f, -1.0f, 0.17f, 0.11f, 0.05f, 0.0f, 0.0f, //26
-0.5f, -1.0f, -1.0f, 0.17f, 0.11f, 0.05f, 0.5f, 0.0f, //27
-0.6f, 0.0f, -0.9f, 0.17f, 0.11f, 0.05f, 1.0f, 1.0f, //28
-0.5f, 0.0f, -0.9f, 0.17f, 0.11f, 0.05f, 0.75f,1.0f, //29
-0.6f, 0.0f, -1.0f, 0.17f, 0.11f, 0.05f, 0.0f, 1.0f, //30
-0.5f, 0.0f, -1.0f, 0.17f, 0.11f, 0.05f, 0.5f, 1.0f, //31
//seat cushion
0.7f, 0.1f, 0.0f, 0.9f, 0.9f, 0.8f, 0.0f, 0.0f, //32 //ATTEMPTED TO LEAVE TEXTURE OFF CUSHION BUT STILL GOT texture O.0f
-0.7f, 0.1f, 0.0f, 0.9f, 0.9f, 0.8f, 0.0f, 0.0f, //33
0.7f, 0.2f, 0.0f, 0.9f, 0.9f, 0.8f, 0.0f, 0.0f, //34
-0.7f, 0.2f, 0.0f, 0.9f, 0.9f, 0.8f, 0.0f, 0.0f, //35
0.6f, 0.1f, -0.9f, 0.9f, 0.9f, 0.8f, 0.0f, 0.0f, //36
0.6f, 0.2f, -0.9f, 0.9f, 0.9f, 0.8f, 0.0f, 0.0f, //37
-0.6f, 0.1f, -0.9f, 0.9f, 0.9f, 0.8f, 0.0f, 0.0f, //38
-0.6f, 0.2f, -0.9f, 0.9f, 0.9f, 0.8f, 0.0f, 0.0f, //39
//chair base
0.6f, 0.0f, 0.0f, 0.17f, 0.11f, 0.05f, 0.0f, 0.0f, //40
-0.6f, 0.0f, 0.0f, 0.17f, 0.11f, 0.05f, 1.0f, 0.0f, //41
0.6f, 0.1f, 0.0f, 0.17f, 0.11f, 0.05f, 0.25f, 0.0f, //42
-0.6f, 0.1f, 0.0f, 0.17f, 0.11f, 0.05f, 1.0f, 0.25f, //43
0.6f, 0.0f, -1.0f, 0.17f, 0.11f, 0.05f, 0.0f, 0.25f, //44
0.6f, 0.1f, -1.0f, 0.17f, 0.11f, 0.05f, 0.0f, 0.25f, //45
-0.6f, 0.0f, -1.0f, 0.17f, 0.11f, 0.05f, 1.0f, 0.25f, //46
-0.6f, 0.1f, -1.0f, 0.17f, 0.11f, 0.05f, 1.0f, 0.25f, //47
//chair back tower 1
0.5f, 0.1f, -0.9f, 0.17f, 0.11f, 0.05f, 1.0f, 0.0f, //48
0.6f, 0.1f, -0.9f, 0.17f, 0.11f, 0.05f, 0.75f,0.0f, //49
0.5f, 0.1f, -1.0f, 0.17f, 0.11f, 0.05f, 0.0f, 0.0f, //50
0.6f, 0.1f, -1.0f, 0.17f, 0.11f, 0.05f, 0.5f, 0.0f, //51
0.5f, 1.2f, -1.1f, 0.17f, 0.11f, 0.05f, 1.0f, 1.0f, //52
0.6f, 1.2f, -1.1f, 0.17f, 0.11f, 0.05f, 0.75f,1.0f, //53
0.5f, 1.2f, -1.2f, 0.17f, 0.11f, 0.05f, 0.0f, 1.0f, //54
0.6f, 1.2f, -1.2f, 0.17f, 0.11f, 0.05f, 0.5f, 1.0f, //55
//chair back tower 2
-0.5f, 0.1f, -0.9f, 0.17f, 0.11f, 0.05f, 1.0f, 0.0f, //56
-0.6f, 0.1f, -0.9f, 0.17f, 0.11f, 0.05f, 0.75f,0.0f, //57
-0.5f, 0.1f, -1.0f, 0.17f, 0.11f, 0.05f, 0.0f, 0.0f, //58
-0.6f, 0.1f, -1.0f, 0.17f, 0.11f, 0.05f, 0.5f, 0.0f, //59
-0.5f, 1.2f, -1.1f, 0.17f, 0.11f, 0.05f, 1.0f, 1.0f, //60
-0.6f, 1.2f, -1.1f, 0.17f, 0.11f, 0.05f, 0.75f, 1.0f, //61
-0.5f, 1.2f, -1.2f, 0.17f, 0.11f, 0.05f, 0.0f, 1.0f, //62
-0.6f, 1.2f, -1.2f, 0.17f, 0.11f, 0.05f, 0.5f, 1.0f, //63
//chair horiz back top
0.5f, 1.1f, -1.1f, 0.39f, 0.26f, 0.12f, 0.0f, 0.0f, //64
-0.5f, 1.1f, -1.1f, 0.39f, 0.26f, 0.12f, 1.0f, 0.0f, //65
-0.5f, 1.2f, -1.1f, 0.39f, 0.26f, 0.12f, 1.0f, 0.5f, //66
0.5f, 1.2f, -1.1f, 0.39f, 0.26f, 0.12f, 0.0f, 0.5f, //67
0.5f, 1.1f, -1.2f, 0.39f, 0.26f, 0.12f, 0.0f, 0.0f, //68
-0.5f, 1.1f, -1.2f, 0.39f, 0.26f, 0.12f, 1.0f, 0.0f, //69
-0.5f, 1.2f, -1.2f, 0.39f, 0.26f, 0.12f, 1.0f, 0.5f, //70
0.5f, 1.2f, -1.2f, 0.39f, 0.26f, 0.12f, 0.0f, 0.5f, //71
//chair horiz back bottom
0.5f, 0.4f, -1.0f, 0.39f, 0.26f, 0.12f, 0.0f, 0.0f, //72
-0.5f, 0.4f, -1.0f, 0.39f, 0.26f, 0.12f, 1.0f, 0.0f, //73
-0.5f, 0.5f, -1.0f, 0.39f, 0.26f, 0.12f, 1.0f, 0.5f, //74
0.5f, 0.5f, -1.0f, 0.39f, 0.26f, 0.12f, 0.0f, 0.5f, //75
0.5f, 0.4f, -1.05f, 0.39f, 0.26f, 0.12f, 0.0f, 0.0f, //76
-0.5f, 0.5f, -1.05f, 0.39f, 0.26f, 0.12f, 1.0f, 0.0f, //77
-0.5f, 0.4f, -1.05f, 0.39f, 0.26f, 0.12f, 1.0f, 0.5f, //78
0.5f, 0.5f, -1.05f, 0.39f, 0.26f, 0.12f, 0.0f, 0.5f, //79
//chair rung 1 front to back
0.58f, -0.4f, -0.10f, 0.39f, 0.26f, 0.12f, 0.0f, 0.25f, //80
0.55f, -0.4f, -0.10f, 0.39f, 0.26f, 0.12f, 0.0f, 0.5f, //81
0.55f, -0.5f, -0.10f, 0.39f, 0.26f, 0.12f, 0.0f, 0.75f, //82
0.58f, -0.5f, -0.10f, 0.39f, 0.26f, 0.12f, 0.0f, 0.0f, //83
0.58f, -0.4f, -0.90f, 0.39f, 0.26f, 0.12f, 1.0f, 0.25f, //84
0.55f, -0.4f, -0.90f, 0.39f, 0.26f, 0.12f, 1.0f, 0.5f, //85
0.55f, -0.5f, -0.90f, 0.39f, 0.26f, 0.12f, 1.0f, 0.75f, //86
0.58f, -0.5f, -0.90f, 0.39f, 0.26f, 0.12f, 1.0f, 0.0f, //87
//chair rung 2 front to back
-0.58f, -0.4f, -0.10f, 0.39f, 0.26f, 0.12f, 0.0f, 0.25f, //88
-0.55f, -0.4f, -0.10f, 0.39f, 0.26f, 0.12f, 0.0f, 0.5f, //89
-0.55f, -0.5f, -0.10f, 0.39f, 0.26f, 0.12f, 0.0f, 0.75f, //90
-0.58f, -0.5f, -0.10f, 0.39f, 0.26f, 0.12f, 0.0f, 0.0f, //91
-0.58f, -0.4f, -0.90f, 0.39f, 0.26f, 0.12f, 1.0f, 0.25f, //92
-0.55f, -0.4f, -0.90f, 0.39f, 0.26f, 0.12f, 1.0f, 0.5f, //93
-0.55f, -0.5f, -0.90f, 0.39f, 0.26f, 0.12f, 1.0f, 0.75f, //94
-0.58f, -0.5f, -0.90f, 0.39f, 0.26f, 0.12f, 1.0f, 0.0f, //95
//chair rung across the front
-0.5f, -0.5f, -0.03f, 0.39f, 0.26f, 0.12f, 0.0f, 0.0f, //96
0.5f, -0.5f, -0.03f, 0.39f, 0.26f, 0.12f, 1.0f, 0.0f, //97
-0.5f, -0.4f, -0.03f, 0.39f, 0.26f, 0.12f, 1.0f, 0.5f, //98
0.5f, -0.4f, -0.03f, 0.39f, 0.26f, 0.12f, 0.0f, 0.5f, //99
-0.5f, -0.5f, -0.06f, 0.39f, 0.26f, 0.12f, 0.0f, 0.0f, //100
0.5f, -0.5f, -0.06f, 0.39f, 0.26f, 0.12f, 1.0f, 0.0f, //101
-0.5f, -0.4f, -0.06f, 0.39f, 0.26f, 0.12f, 1.0f, 0.5f, //102
0.5f, -0.4f, -0.06f, 0.39f, 0.26f, 0.12f, 0.0f, 0.5f, //103
//chair rung across the back
-0.5f, -0.5f, -0.85f, 0.39f, 0.26f, 0.12f, 0.0f, 0.0f, //104
0.5f, -0.5f, -0.85f, 0.39f, 0.26f, 0.12f, 1.0f, 0.0f, //105
-0.5f, -0.4f, -0.85f, 0.39f, 0.26f, 0.12f, 1.0f, 0.5f, //106
0.5f, -0.4f, -0.85f, 0.39f, 0.26f, 0.12f, 0.0f, 0.5f, //107
-0.5f, -0.5f, -0.88f, 0.39f, 0.26f, 0.12f, 0.0f, 0.0f, //108
0.5f, -0.5f, -0.88f, 0.39f, 0.26f, 0.12f, 1.0f, 0.0f, //109
-0.5f, -0.4f, -0.88f, 0.39f, 0.26f, 0.12f, 1.0f, 0.5f, //110
0.5f, -0.4f, -0.88f, 0.39f, 0.26f, 0.12f, 0.0f, 0.5f, //111
};
//Index data to share position data
GLuint indices[] = {
//chair leg
0, 1, 2, //Triangle 1
1, 3, 2, //Triangle 2
4, 5, 7, //Triangle 2
4, 6, 7, //Triangle 4
4, 0, 2, //Triangle 5
4, 6, 2, //Triangle 6
1, 6, 3, //Triangle 7
2, 3, 6, //Triangle 8
5, 1, 3, //Triangle 9
5, 3, 7, //Triangle 10
5, 4, 0, //Triangle 11
5, 1, 0, //Triangle 12
//chair leg 2
8, 9,10, //Triangle 13
9,11,10, //Triangle 14
12,13,15, //Triangle 15
12,14,15, //Triangle 16
12, 8,10, //Triangle 17
12,14,10, //Triangle 18
9,14,11, //Triangle 19
10,11,14, //Triangle 20
13, 9,11, //Triangle 21
13,11,15, //Triangle 22
13,12,8, //Triangle 23
13,9,8, //Triangle 24
//chair leg 3
16,17,18, //Triangle 25
17,19,18, //Triangle 26
20,21,23, //Triangle 27
20,22,23, //Triangle 28
20,16,18, //Triangle 29
20,22,18, //Triangle 30
18,19,23, //Triangle 31
18,19,22, //Triangle 32
21,17,19, //Triangle 33
21,19,23, //Triangle 34
21,20,16, //Triangle 35
21,17,16, //Triangle 36
//chair leg 4
24,25,29, //Triangle 37
24,28,29, //Triangle 38
25,27,29, //Triangle 39
27,31,29, //Triangle 40
27,26,31, //Triangle 41
26,30,31, //Triangle 42
26,30,24, //Triangle 43
24,28,30, //Triangle 44
29,28,30, //Triangle 45
29,31,30, //Triangle 46
24,25,26, //Triangle 47
25,27,26, //Triangle 48
//seat (fixed missing polygons)
32,33,34, //Triangle 49
32,33,35, //Triangle 50
32,34,37, //Triangle 51
32,36,37, //Triangle 52
37,39,38, //Triangle 53
37,36,38, //Triangle 54
39,35,33, //Triangle 55
39,38,33, //Triangle 56
35,34,37, //Triangle 57
35,39,37, //Triangle 58
33,32,36, //Triangle 59
33,38,36, //Triangle 60
//BASE OF CHAIR (fixed missing polygons)
40,41,42, //Triangle 61
40,42,43, //Triangle 62
42,40,44, //Triangle 63
42,45,44, //Triangle 64
45,44,46, //Triangle 65
45,47,46, //Triangle 66
44,45,46, //Triangle 67
47,43,41, //Triangle 68
47,46,41, //Triangle 69
43,42,45, //Triangle 70
43,47,42, //Triangle 71
41,40,44, //Triangle 72
41,46,44, //added triangle as missing in seat base
//chair tower 1
48,49,53, //Triangle 73
48,52,53, //Triangle 74
49,51,55, //Triangle 75
49,53,55, //Triangle 76
51,50,55, //Triangle 77
50,54,55, //Triangle 78
50,54,52, //Triangle 79
50,48,52, //Triangle 80
52,53,54, //Triangle 81
53,55,54, //Triangle 82
48,49,50, //Triangle 83
49,51,50, //Triangle 84
//chair tower 2
56,57,61, //Triangle 85
56,60,61, //Triangle 86
57,59,63, //Triangle 87
57,61,63, //Triangle 88
59,58,63, //Triangle 89
58,62,63, //Triangle 90
58,62,60, //Triangle 91
58,56,60, //Triangle 92
60,61,62, //Triangle 93
61,63,62, //Triangle 94
56,57,58, //Triangle 95
57,59,58, //Triangle 96
//chair horiz back
64,65,67, //Triangle 97
64,65,66, //Triangle 98
64,68,71, //Triangle 99
64,67,71, //Triangle 100
68,69,70, //Triangle 101
68,71,70, //Triangle 102
65,69,64, //Triangle 103
66,70,69, //Triangle 104
66,70,67, //Triangle 105
67,71,70, //Triangle 106
65,64,68, //Triangle 107
65,69,64, //Triangle 108
//chair horiz back lower
72,73,75, //Triangle 109
73,74,75, //Triangle 110
72,76,79, //Triangle 111
79,75,72, //Triangle 112
79,76,77, //Triangle 113
79,78,77, //Triangle 114
74,78,77, //Triangle 115
73,74,77, //Triangle 116
75,79,78, //Triangle 117
75,74,78, //Triangle 118
72,73,77, //Triangle 119
72,76,77, //Triangle 120
//chair rung front to back
81,80,83, //Triangle 121
81,82,83, //Triangle 122
80,83,87, //Triangle 123
80,84,87, //Triangle 124
84,87,86, //Triangle 125
84,85,86, //Triangle 126
86,85,81, //Triangle 127
81,82,86, //Triangle 128
82,83,87, //Triangle 129
83,82,86, //Triangle 130
81,80,84, //Triangle 131
80,81,85, //Triangle 132
//chair rung 2 front to back
89,88,91, //Triangle 133
89,90,91, //Triangle 134
88,91,95, //Triangle 135
91,95,92, //Triangle 136
92,95,94, //Triangle 137
92,93,94, //Triangle 138
94,93,89, //Triangle 139
89,90,94, //Triangle 140
91,90,95, //Triangle 141
90,94,95, //Triangle 142
89,88,92, //Triangle 143
89,93,92, //Triangle 144
//chair rung 3 across the front
99,97,96, //Triangle 145
96,98,99, //Triangle 146
97,101,103, //Triangle 147
97,99,103, //Triangle 148
101,100,102, //Triangle 149
101,103,102, //Triangle 150
102,98,96, //Triangle 151
102,100,96, //Triangle 152
102,103,99, //Triangle 153
99,98,102, //Triangle 154
96,97,101, //Triangle 155
97,96,100, //Triangle 156
//chair rung 4 across the back
104,105,107, //Triangle 157
107,106,104, //Triangle 158
105,109,111, //Triangle 159
105,107,111, //Triangle 160
109,111,110, //Triangle 161
109,108,110, //Triangle 162
106,110,108, //Triangle 163
106,104,108, //Triangle 164
106,110,111, //Triangle 165
106,107,111, //Triangle 166
104,105,109, //Triangle 167
104,108,109, //Triangle 168
};
//Generate buffer IDs
glGenVertexArrays(1, &VAO);
glGenBuffers(1, &VBO);
glGenBuffers(1, &EBO);
glBindVertexArray(VAO); // activate vertex array object before binding and setting any VBOs and Vertex Attribute Pointers
//Activate VBO
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW); // copy vertices to VBO
//Activate EBO
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW); // copy vertices to EBO
//set attribute pointer 0 to hold position data
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), (GLvoid*)0);
glEnableVertexAttribArray(0); //Enables vertex attribute
//Set attribute pointer 1 to hold Normal data
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), (GLvoid*)(3 * sizeof(GLfloat)));
glEnableVertexAttribArray(1);
//Set attribute pointer 2 to hold Texture coordinate data
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), (GLvoid*)(6 * sizeof(GLfloat)));
glEnableVertexAttribArray(2);
glBindVertexArray(0); // deactivates the VAO - good practice
}
//GENERATE AND LOAD TEXURE ... Note to self look into texture arrays
void UGenerateTexture(){
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
int width, height;
unsigned char* image = SOIL_load_image("darkwood.jpg", &width, &height, 0, SOIL_LOAD_RGB);//loads texture file
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, image);
glGenerateMipmap(GL_TEXTURE_2D);
SOIL_free_image_data(image);
glBindTexture(GL_TEXTURE_2D, 0); //Unbind the texture
}
`include`
#包括
#包括
#包括
#包括
#包括
//土壤图像加载器
#包括“SOIL2/SOIL2.h”
使用名称空间std；
#定义窗口标题“ms 330”
#ifndef GLSL
#定义GLSL（版本，源）“#版本”#版本“\n”#源
#恩迪夫
闪烁着色器程序，窗口宽度=800，窗口高度=600；
胶合VBO、VAO、EBO、纹理；
GLfloat度=glm:：弧度（0.0f）；
GLfloat摄像机旋转=glm:：弧度（-45.0f）；
GLfloat摄像机速度=0.0005f；//每帧移动速度
GLchar当前键//将存储键按下
//立方体与浅色
glm:：vec3 lightColor（0.78f、0.88f、1.0f）//应用的阴天，如201226255 rbg值相等
glm:：vec3 secondLightColor（0.49f、0.43f、0.40f）//将浅棕色应用于第二种颜色
//灯光位置和比例
glm:：vec3光位置（-1.0f，2.0f，-3.0f）；
glm:：vec3光标度（0.3f）；
glm:：vec3光强度（1.0f、1.0f、0.25f）//环境反射高光
//按轴编号设置比例
GLfloat刻度乘以y=1.0f；
GLfloat刻度乘以x=1.0f；
GLfloat scale_乘以_z=1.0f；
GLfloat lastMouseX=400，lastMouseY=300；//将鼠标光标锁定在屏幕中心
GLfloat mouseXOffset，mouseYOffset，偏航=0.0f，俯仰=0.0f，缩放=0.0f；//鼠标偏移、偏航和俯仰变量
GLfloat灵敏度=0.005f；//用于鼠标/相机旋转灵敏度
//初始在透视图上设置的视图状态的vstate
int-vstate=1；
//用于glutmodifers的keymod
int-keymod；
bool-checkMotion=false；
bool leftMouseButton=false；
bool rightMouseButton=false；
bool-altDown=false；
//全局向量声明
glm:：vec3 cameraPosition=glm:：vec3（0.0f，0.0f，-5.0f）；//在z轴上放置5个单元的初始摄像机位置
glm:：vec3 CameraUpY=glm:：vec3（0.0f，1.0f，0.0f）；//临时y单位向量
glm:：vec3 CameraForwardZ=glm:：vec3（0.0f，0.0f，-1.0f）；//临时z单位向量
glm:：vec3前端；//鼠标的临时z单位向量
glm:：vec3摄像机团队；
无效UResizeWindow（int，int）；
无效图形（无效）；
void-UCreateShader（void）；
无效缓冲区（void）；
无效移动（整数x，整数y）；
单击（int按钮、int状态、int x、int y）；
void-ugenettexture（void）；
void UKeyboard（无符号字符键，整数x，整数y）；
void-UKeyReleased（无符号字符键，整数x，整数y）；
//顶点着色器源代码
常量GLchar*vertexShaderSource=GLSL（330，
布局（位置=0）在vec3位置；//顶点属性指针0中的顶点数据
vec2纹理坐标中的布局（位置=2）；
out vec2 MOBILETEXTEROCORCOLDING；
//变换矩阵的全局变量
统一mat4模型；
统一mat4视图；
均匀mat4投影；
void main（）{
gl_Position=projection*view*model*vec4（位置，1.0f）；//将顶点转换为剪辑坐标
MobileTextureCoordination=vec2（textureCoordinate.x，1.0f-textureCoordinate.y）；//水平翻转纹理
}
);
//片段着色器源代码
常量GLchar*fragmentShaderSource=GLSL（330，
在vec2 MobileTextureCoordinal中；
out vec4 gpuTexture；//将颜色数据传递给GPU的变量
uniform sampler2D uTexture；//在处理多个纹理时非常有用
void main（）{
gpuTexture=纹理（uTexture，mobiletexturecoordination）；
}
);
//灯光顶点着色器代码
常量GLchar*lightVertexShaderSource=GLSL（330，
布局（位置=0）在vec3位置；//顶点位置数据的VAP位置0
vec3法线中的布局（位置=1）//法线的VAP位置1
vec2纹理坐标中的布局（位置=2）；
out vec3 Normal；//用于将传出法线转换为片段着色器
out vec3 FragmentPos；//用于输出颜色/像素到片段着色器
out vec2 mobiletexturecoordinal；//纹理的uv坐标
//变换矩阵的统一/全局变量
统一mat4模型；
统一mat4视图；
均匀mat4投影；
void main（）{
gl_Position=projection*view*model*vec4（位置，1.0f）；//将顶点转换为剪辑坐标
Normal=mat3（转置（逆（模型）））*Normal；//仅获取世界空间中的法向量并排除法向转换属性
FragmentPos=vec3（model*vec4（位置，1.0f））；//仅获取世界空间中的片段/像素位置（排除视图和投影）
MobileTextureCoordination=vec2（textureCoordinate.x，1.0f-textureCoordinate.y）；//水平翻转纹理
}
);
//主程序
int main（int argc，char*argv[]）{
glutInit（&argc，argv）；
glutInitDisplayMode（GLUT_深度| GLUT_双精度| GLUT_RGBA）；
glutInitWindowSize（窗口宽度、窗口高度）；
创建窗口（窗口标题）；
GLUTEFUNC（UResizeWindow）；
glewExperimental=GL_TRUE；
如果（glewInit（）！=GLEW\u确定）{
std:：cout有3个选项。1.使用单独的glDraw….
调用渲染每个对象，并使用正确的纹理绑定。2.将对象/纹理索引添加到VBO中，将其传递给着色器，并在片段中决定使用哪个纹理以及绑定到单独单元的每个纹理（多重纹理）