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我的代碼有問題。目前我正在渲染兩個對象。他們是地板和人物。樓層位於VAO [0]，位於VAO 1。我的問題是我看不到物體的底板。我知道我必須改變物體底部的視圖才能看到它。我想用旋轉來做到這一點。我只想換地板。這是我的洞碼。有人能幫助我嗎？我只想在這個內容的opengl 3.3中使用現代的opengl。我想要這樣的看法：My scene紅色區域是地板，綠色是數字。 我該如何實現我的目標。供你參考。這是一個測試場景。我遠距離的目標就像3D遊戲中的洞景。所以這意味着更多的polygones用於地板和其他場景，如牆壁，天花板，房間中的物體和nps。所有這些都是用精靈製作的，因爲我認爲如果不使用3D程序來創建3D模型，這將是最好的方式。所以如果你有我的物品的提示，欣賞它。 謝謝你的幫助。在opengl中旋轉困難3
#define GLFW_NO_GLU
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#include <iostream>
#include <glm.hpp>
#include <gtc/matrix_transform.hpp>
#include <gtc/type_ptr.hpp>
int main()
{
if(glfwInit()==GL_FALSE)
{
std::cerr<<"GLFW FAIL";
return 1;
}
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR,3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR,3);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT,GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE,GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
GLFWwindow* window = glfwCreateWindow(1024, 748, "My Game", NULL, NULL);
if (window==GL_FALSE)
{
std::cerr<<"Open Window FAIL";
return 1;
}
glfwMakeContextCurrent(window);
glewExperimental = true;
if(glewInit()!=GLEW_OK)
{
std::cerr<<"GLEW FAIL";
return 1;
}
glViewport(0, 0, 1024, 748);
const GLchar* vertexshadersrc="#version 330 core\n"
"layout (location = 0) in vec4 position;\n"
"uniform mat4 matrix;\n"
"void main()\n"
"{\n"
"gl_Position = gl_Position=matrix * position;\n"
"}\0";
const GLchar* fragmentshadersrc="#version 330 core\n"
"out vec4 color;\n"
"void main()\n"
"{\n"
"color=vec4(1.0f,0.0f,0.0f,1.0f);\n"
"}\0";
GLuint vertexshader=glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vertexshader,1,&vertexshadersrc,NULL);
glCompileShader(vertexshader);
GLint compile_ok;
GLint errlength;
GLchar* errmsg;
glGetShaderiv(vertexshader,GL_COMPILE_STATUS, &compile_ok);
if(compile_ok==GL_FALSE)
{
glGetShaderiv(vertexshader, GL_INFO_LOG_LENGTH,&errlength);
errmsg=new GLchar[errlength];
glGetShaderInfoLog(vertexshader,errlength,&errlength,errmsg);
std::cerr<<"Vertexshader";
std::cerr<<errmsg;
return 1;
}
GLuint fragmentshader=glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(fragmentshader,1,&fragmentshadersrc,NULL);
glCompileShader(fragmentshader);
glGetShaderiv(fragmentshader,GL_COMPILE_STATUS, &compile_ok);
if(compile_ok==GL_FALSE)
{
glGetShaderiv(fragmentshader, GL_INFO_LOG_LENGTH,&errlength);
errmsg=new GLchar[errlength];
glGetShaderInfoLog(fragmentshader,errlength,&errlength,errmsg);
std::cerr<<"Fragmentshader";
std::cerr<<errmsg;
return 1;
}
GLuint programm=glCreateProgram();
glAttachShader(programm,vertexshader);
glAttachShader(programm,fragmentshader);
glLinkProgram(programm);
glDeleteShader(vertexshader);
glDeleteShader(fragmentshader);
GLfloat floor[]=
{
-1.0f, 0.0f, 1.0f,
-1.0f, 0.0f, -1.0f,
1.0f, 0.0f, 1.0f,
1.0f, 0.0f, -1.0f,
};
GLfloat floorc[]=
{
1.0f,0.0f,0.0f,1.0f
};
GLfloat figure[] = {
-0.2f, 0.4f, -0.1f,
-0.2f, 0.0f, -0.1f,
0.2f, 0.4f, -0.1f,
0.2f, 0.0f, -0.1f
};
GLfloat figurec[]=
{
0.0f,1.0f,0.0f,1.0f
};
GLfloat tree[] = {
-0.7f, 0.4f, -0.1f,
-0.7f, 0.0f, -0.1f,
-0.3f, 0.4f, -0.1f,
-0.3f, 0.0f, -0.1f
};
GLuint VAO[3], VBO[6];
glGenVertexArrays(3, VAO);
glGenBuffers(6, VBO);
glBindVertexArray(VAO[0]);
glBindBuffer(GL_ARRAY_BUFFER, VBO[0]);
glBufferData(GL_ARRAY_BUFFER,sizeof(floor),floor,GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (GLvoid*)0);
glBindBuffer(GL_ARRAY_BUFFER, VBO[1]);
glBufferData(GL_ARRAY_BUFFER,sizeof(floorc),floorc,GL_STATIC_DRAW);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, (GLvoid*)0);
glBindVertexArray(VAO[1]);
glBindBuffer(GL_ARRAY_BUFFER, VBO[2]);
glBufferData(GL_ARRAY_BUFFER, sizeof(figure), figure, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (GLvoid*)0);
glBindBuffer(GL_ARRAY_BUFFER, VBO[3]);
glBufferData(GL_ARRAY_BUFFER, sizeof(figurec), figurec, GL_STATIC_DRAW);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, (GLvoid*)0);
glBindVertexArray(VAO[2]);
glBindBuffer(GL_ARRAY_BUFFER, VBO[4]);
glBufferData(GL_ARRAY_BUFFER, sizeof(tree), tree, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (GLvoid*)0);
glm::mat4 projection;
projection=glm::perspective(45.0f,4.0f/3.0f,0.1f,100.0f);
glm::mat4 modelview;
modelview=glm::translate(glm::mat4(1.0f),glm::vec3(0.0f, 0.0f, -1.0f));
glm::mat4 mpmatrix=projection*modelview;
//GLuint position=glGetAttribLocation(programm,"position");
GLuint matrixuni=glGetUniformLocation(programm,"matrix");
//glVertexAttribPointer(0,3,GL_FLOAT,GL_FALSE,0,(GLvoid*)0);
glUseProgram(programm);
glUniformMatrix4fv(matrixuni,1,GL_FALSE,&mpmatrix[0][0]);
while (!glfwWindowShouldClose(window))
{
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBindVertexArray(VAO[0]);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glBindVertexArray(VAO[1]);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
/*glBindVertexArray(VAO[2]);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);*/
glfwPollEvents();
glfwSwapBuffers(window);
}
glfwTerminate();
return 0;
}
「我知道我有翻譯的對象地上以使其可見我想用一個旋轉做到這一點「你想轉化它，還是旋轉它（或者甚至兩者）？ – derhass