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// g++ -Wall -o glfwOpenGLplay glfwOpenGLplay.cpp -lGLEW -lglfw -lGLU -lGL
#include <GL/glew.h>
#include <GL/glfw.h>
#include <iostream>
int onExit(int);
void myprojection();
void mymodelview();
int main(void)
{
if (!glfwInit()) return onExit(1);
if (!glfwOpenWindow(640, 480, 8, 8, 8, 0, 24, 0, GLFW_WINDOW)) return onExit(1);
GLenum res = glewInit();
if (res != GLEW_OK)
{
std::cout << "Error: " << glewGetErrorString(res) << std::endl;
return 1;
}
glClearColor(0.0f, 0.0f, 0.4f, 0.0f);
myprojection();
mymodelview();
float tdata[] = { 1.0f, 0.0f, 5.0f, 0.0f, 0.0f, -5.0f, -1.0f, 0.0f, -5.0f };
GLuint tVBO;
glGenBuffers(1, &tVBO);
glBindBuffer(GL_ARRAY_BUFFER, tVBO);
glBufferData(GL_ARRAY_BUFFER, sizeof(tdata), tdata, GL_STATIC_DRAW);
while(glfwGetWindowParam(GLFW_OPENED))
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
//glTranslatef(0.0f, 0.0f, -1.0f);
//glColor3f(0.0f, 1.0f, 0.0f);
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, 0);
glDrawArrays(GL_TRIANGLES, 0, sizeof(tdata) / sizeof(float) / 3);
glDisableClientState(GL_VERTEX_ARRAY);
glfwSwapBuffers();
if(glfwGetKey( GLFW_KEY_ESC ) == GL_TRUE)
glfwCloseWindow();
glfwSleep( 0.015 );
}
return onExit(0);
}
int onExit(int code)
{
glfwTerminate();
return code;
}
void myprojection()
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
//gluPerspective(90.f, 1.f, 1.f, 300.f);
}
void mymodelview()
{
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
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