Согласно задумке градиентная пирамида должна вращаться относительно y, но этого не происходит. Через час получилось чтото типа пирамиды, но она не движется. В чем моя ошибка?
#include <GL/glut.h>
GLfloat rtri=10; // gthdsq eujk
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);// Î÷èñòêà ýêðàíà è áóôåðà ãëóáèíû
glLoadIdentity(); // Ñáðîñ ïðîñìîòðà
//glTranslatef(-1.5f,0.0f,-6.0f); // Ñäâèã âëåâî è âãëóáü ýêðàíà
glRotatef(rtri,0.0f,1.0f,0.0f); // Âðàùåíèå ïèðàìèäû ïî îñè Y
glBegin(GL_TRIANGLES); // Íà÷àëî ðèñîâàíèÿ ïèðàìèäû
glColor3f(1.0f,0.0f,0.0f); // Êðàñíûé
glVertex3f( 0.0f, 1.0f, 0.0f); // Âåðõ òðåóãîëüíèêà (Ïåðåäíÿÿ)
glColor3f(0.0f,1.0f,0.0f); // Çåëåííûé
glVertex3f(-1.0f,-1.0f, 1.0f); // Ëåâàÿ òî÷êà
glColor3f(0.0f,0.0f,1.0f); // Ñèíèé
glVertex3f( 1.0f,-1.0f, 1.0f); // Ïðàâàÿ òî÷êà
glColor3f(1.0f,0.0f,0.0f); // Êðàñíàÿ
glVertex3f( 0.0f, 1.0f, 0.0f); // Âåðõ òðåóãîëüíèêà (Ïðàâàÿ)
glColor3f(0.0f,0.0f,1.0f); // Ñèíèÿ
glVertex3f( 1.0f,-1.0f, 1.0f); // Ëåâî òðåóãîëüíèêà (Ïðàâàÿ)
glColor3f(0.0f,1.0f,0.0f); // Çåëåííàÿ
glVertex3f( 1.0f,-1.0f, -1.0f); // Ïðàâî òðåóãîëüíèêà (Ïðàâàÿ)
glColor3f(1.0f,0.0f,0.0f); // Êðàñíûé
glVertex3f( 0.0f, 1.0f, 0.0f); // Íèç òðåóãîëüíèêà (Ñçàäè)
glColor3f(0.0f,1.0f,0.0f); // Çåëåííûé
glVertex3f( 1.0f,-1.0f, -1.0f); // Ëåâî òðåóãîëüíèêà (Ñçàäè)
glColor3f(0.0f,0.0f,1.0f); // Ñèíèé
glVertex3f(-1.0f,-1.0f, -1.0f); // Ïðàâî òðåóãîëüíèêà (Ñçàäè)
glColor3f(1.0f,0.0f,0.0f); // Êðàñíûé
glVertex3f( 0.0f, 1.0f, 0.0f); // Âåðõ òðåóãîëüíèêà (Ëåâî)
glColor3f(0.0f,0.0f,1.0f); // Ñèíèé
glVertex3f(-1.0f,-1.0f,-1.0f); // Ëåâî òðåóãîëüíèêà (Ëåâî)
glColor3f(0.0f,1.0f,0.0f); // Çåëåííûé
glVertex3f(-1.0f,-1.0f, 1.0f); // Ïðàâî òðåóãîëüíèêà (Ëåâî)
glEnd();
rtri+=0.2f; // Óâåëè÷èì ïåðåìåííóþ âðàùåíèÿ äëÿ òðåóãîëüíèêà
glFlush();
}
int main(int argc, char **argv){
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(800, 600);
glutInitWindowPosition(0, 0);
glutCreateWindow("Test");
glClearColor(1.0, 1.0, 1.0, 1.0);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
glutDisplayFunc(display);
glutMainLoop();
return 0;
}
#include <GL/glut.h>
GLfloat rtri = 10;
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(rtri,0.0f,1.0f,0.0f);
glBegin(GL_TRIANGLES);
glColor3f(1.0f,0.0f,0.0f);
glVertex3f(0.0f, 1.0f, 0.0f);
glColor3f(0.0f,1.0f,0.0f);
glVertex3f(-1.0f,-1.0f, 1.0f);
glColor3f(0.0f,0.0f,1.0f);
glVertex3f(1.0f,-1.0f, 1.0f);
glColor3f(1.0f,0.0f,0.0f);
glVertex3f(0.0f, 1.0f, 0.0f);
glColor3f(0.0f,0.0f,1.0f);
glVertex3f(1.0f,-1.0f, 1.0f);
glColor3f(0.0f,1.0f,0.0f);
glVertex3f(1.0f,-1.0f, -1.0f);
glColor3f(1.0f,0.0f,0.0f);
glVertex3f(0.0f, 1.0f, 0.0f);
glColor3f(0.0f,1.0f,0.0f);
glVertex3f(1.0f,-1.0f, -1.0f);
glColor3f(0.0f,0.0f,1.0f);
glVertex3f(-1.0f,-1.0f, -1.0f);
glColor3f(1.0f,0.0f,0.0f);
glVertex3f(0.0f, 1.0f, 0.0f);
glColor3f(0.0f,0.0f,1.0f);
glVertex3f(-1.0f,-1.0f,-1.0f);
glColor3f(0.0f,1.0f,0.0f);
glVertex3f(-1.0f,-1.0f, 1.0f);
glEnd();
glPopMatrix();
glutSwapBuffers();
glutPostRedisplay(); /* Заставляем сцену перерисоваться */
}
/* Промежуточные вычисления лучше делать здесь, OnIdle */
void idle()
{
rtri += 0.2f;
}
int main(int argc, char **argv){
glutInit(&argc, argv);
glutInitWindowSize(800, 600);
glutInitWindowPosition(0, 0);
/* Двойная буферизация, чтобы убрать мерцание при вращении !!! */
glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB);
glutCreateWindow("test");
glClearColor(0, 0, 0, 0);
glOrtho(-5,5,-5,5,-5,5);
glEnable(GL_DEPTH_TEST);
glutDisplayFunc(display);
glutIdleFunc(idle);
glutMainLoop();
return 0;
}
О круто, спасибо.
может посоветуешь что-нибудь из литературы по openGL? А то дергаю отрывки с разных сайтов, такая каша в башке..