我将以下代码从OpenGL的红皮书(Chapter 4: Display Lists)复制到我的编辑器(Visual Studio Express Edition 2008)中,命名为list.c
并出现编译错误。
#include "aux.h"
#include <GL/gl.h>
#include <GL/glu.h>
GLuint listName = 1;
void myinit (void)
{
glNewList (listName, GL_COMPILE);
glColor3f(1.0, 0.0, 0.0);
glBegin (GL_TRIANGLES);
glVertex2f (0.0, 0.0);
glVertex2f (1.0, 0.0);
glVertex2f (0.0, 1.0);
glEnd ();
glTranslatef (1.5, 0.0, 0.0);
glEndList ();
glShadeModel (GL_FLAT);
}
void drawLine (void)
{
glBegin (GL_LINES);
glVertex2f (0.0, 0.5);
glVertex2f (15.0, 0.5);
glEnd ();
}
void display(void)
{
GLuint i;
glClear (GL_COLOR_BUFFER_BIT);
glColor3f(0.0, 1.0, 0.0);
for (i = 0; i < 10; i++)
glCallList (listName);
drawLine ();
glFlush ();
}
void myReshape(GLsizei w, GLsizei h)
{
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if (w <= h)
gluOrtho2D (0.0, 2.0, -0.5 * (GLfloat) h/(GLfloat) w,
1.5 * (GLfloat) h/(GLfloat) w);
else
gluOrtho2D (0.0, 2.0 * (GLfloat) w/(GLfloat) h, -0.5,
1.5);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
int main(int argc, char** argv)
{
auxInitDisplayMode (AUX_SINGLE | AUX_RGBA);
auxInitPosition (0, 0, 400, 50);
auxInitWindow (argv[0]);
myinit ();
auxReshapeFunc (myReshape);
auxMainLoop(display);
}
答案 0 :(得分:2)
不要使用不辅助,也不要使用glaux。他们太老了。 GLUT 更容易,而许多人使用 SDL 或 SFML (他们比GLUT更灵活,功能更全面)。您应该尝试SFML - 它内部有许多功能,它轻巧便携。你应该满意使用这个=)
如果您想使用 GLUT ,还有以下问题:
操作
以下是一些示例代码:
#include <GL/glut.h >
// rendering function
void display(void)
{
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1.0,1.0,1.0);
glBegin (GL_LINES);
glVertex2f (0.0, 0.5);
glVertex2f (15.0, 0.5);
glEnd ();
glFlush();
}
// some initializations
void init(void)
{
glClearColor(0.0, 0.0, 0.0, 0.0);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
}
int main(int argc, char **argv)
{
// initialize GLUT library
glutInit(&argc, argv);
// set display mode
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
// set initial window size
glutInitWindowSize(250,250);
// set initial window position
glutInitWindowPosition(100,100);
// create the window
glutCreateWindow("moofoo");
// do our initialization routines
init();
// set function which will be called each frame
glutDisplayFunc(display);
// enter main rendering loop
glutMainLoop();
return 0;
}
答案 1 :(得分:1)
您需要包含Windows头文件。修正:
#include <windows.h>
#include <GL/gl.h>
#include <GL/glu.h>
// etc...
答案 2 :(得分:0)
我已经更改了放置glutXxx函数而不是auxXxx函数的代码。它编译但没有运行,我很感激这里的反馈:
#include "GL/glut.h"
#include <stdio.h>
//#include <windows.h>
GLuint listName = 1;
void myinit (void)
{
glNewList (listName, GL_COMPILE);
glColor3f(1.0, 0.0, 0.0);
glBegin (GL_TRIANGLES);
glVertex2f (0.0, 0.0);
glVertex2f (1.0, 0.0);
glVertex2f (0.0, 1.0);
glEnd ();
glTranslatef (1.5, 0.0, 0.0);
glEndList ();
glShadeModel (GL_FLAT);
}
void drawLine (void)
{
glBegin (GL_LINES);
glVertex2f (0.0, 0.5);
glVertex2f (15.0, 0.5);
glEnd ();
}
void display(void)
{
GLuint i;
glClear (GL_COLOR_BUFFER_BIT);
glColor3f(0.0, 1.0, 0.0);
for (i = 0; i < 10; i++)
glCallList (listName);
drawLine ();
glFlush ();
}
void myReshape(GLsizei w, GLsizei h)
{
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if (w <= h)
gluOrtho2D (0.0, 2.0, -0.5 * (GLfloat) h/(GLfloat) w,
1.5 * (GLfloat) h/(GLfloat) w);
else
gluOrtho2D (0.0, 2.0 * (GLfloat) w/(GLfloat) h, -0.5,
1.5);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
int main(int argc, char** argv)
{
glutInitDisplayMode (GLUT_SINGLE | GLUT_RGBA);
glutInitWindowPosition (100, 100);
glutInitWindowPosition (100,100);
glutInit (&argc, argv);
myinit ();
glutDisplayFunc (display);
glutReshapeFunc (myReshape);
glutMainLoop();
}