立体显示 opengl

#include "GL/glut.h" #include "stdlib.h" #include "stdio.h" #include "math.h" static int big = 0; static bool isLeftEye = false; #define PI 3.1415926 const GLfloat R = 8.0; static GLfloat leftMatrix[16] = {1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0}; static GLfloat rightMatrix[16] = {1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0}; static GLfloat leftPersMatrix[16] = {1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0}; static GLfloat rightPersMatrix[16] = {1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0}; void init(void) { const GLfloat SD = 0.06; GLfloat n = SD*R/2.0; //要是转秩 //n=0; leftMatrix[12] = n; rightMatrix[12] = -n; //这里假设眼到屏幕为一米，以米为单位 GLfloat p = SD/(2*1*tan(PI/6)*1); //p = 0.0; leftPersMatrix[12] = -p; rightPersMatrix[12] = p; GLfloat mat_specular[] = {0.8, 0.8, 0.0, 1.0}; GLfloat mat_shininess[] = {50.0}; GLfloat light_position[] = {1.0, 1.0, 1.0, 0.0}; GLfloat white_light[] = {1.0, 1.0, 1.0, 1.0}; GLfloat yellow_light[] = {1.0, 1.0, 0.0, 1.0}; GLfloat lmodel_ambient[] = {0.0, 0.7, 0.5, 1.0}; glClearColor(1.0, 1.0, 1.0, 0.0); glShadeModel(GL_SMOOTH); glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess); glLightfv(GL_LIGHT0, GL_POSITION, light_position); glLightfv(GL_LIGHT0, GL_DIFFUSE, yellow_light);//主体的颜色 glLightfv(GL_LIGHT0, GL_SPECULAR, white_light);//高光的颜色 glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); glEnable(GL_DEPTH_TEST); } void display(void) { glColorMask(1.0, 1.0,1.0,1.0); glClearColor(0.0,0.0,0.0,1.0); glClearDepth(1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3f(1.0, 1.0, 1.0); // 画左眼 glMatrixMode(GL_PROJECTION); glPushMatrix(); float mat[16]; glGetFloatv(GL_PROJECTION_MATRIX,mat); glLoadIdentity(); glMultMatrixf(leftPersMatrix); glMultMatrixf(mat); glMatrixMode(GL_MODELVIEW); glPushMatrix(); glGetFloatv(GL_MODELVIEW_MATRIX,mat); glLoadIdentity(); glMultMatrixf(leftMatrix); glMultMatrixf(mat); glColorMask(1.0, 0.0,0.0,1.0); glRotatef((GLfloat) big, 0.0, 1.0, 0.0); glutSolidTeapot(2.0); glPopMatrix(); glMatrixMode(GL_PROJECTION); glPopMatrix(); glFlush(); //画右眼 glClearDepth(1.0); glClear(GL_DEPTH_BUFFER_BIT); glMatrixMode(GL_PROJECTION); glPushMatrix(); glGetFloatv(GL_PROJECTION_MATRIX,mat); glLoadIdentity(); glMultMatrixf(rightPersMatrix); glMultMatrixf(mat); glMatrixMode(GL_MODELVIEW); glPushMatrix(); glGetFloatv(GL_MODELVIEW_MATRIX,mat); glLoadIdentity(); glMultMatrixf(rightMatrix); glMultMatrixf(mat); glColorMask(0.0, 1.0,1.0,1.0); glRotatef((GLfloat) big, 0.0, 1.0, 0.0); glutSolidTeapot(2.0); glPopMatrix(); glMatrixMode(GL_PROJECTION); glPopMatrix(); glFlush(); //glPopMatrix(); //if(isLeftEye) //{ // glMatrixMode(GL_PROJECTION); // glMultMatrixf(leftPersMatrix); // glMatrixMode(GL_MODELVIEW); // glMultMatrixf(leftMatrix); // glColorMask(1.0, 0.0,0.0,1.0); // // // // isLeftEye = false; //}else //{ // // glMatrixMode(GL_PROJECTION); // glMultMatrixf(rightPersMatrix); // glMatrixMode(GL_MODELVIEW); // glMultMatrixf(rightMatrix); // glColorMask(0.0, 1.0,1.0,1.0); // isLeftEye = true; //} //glRotatef((GLfloat) big, 0.0, 1.0, 0.0); //glutSolidTeapot(1.0); //glRotatef((GLfloat) big, 0.0, 1.0, 0.0); //glTranslatef(3.0, 0.0, 0.0); //glutSolidTeapot(0.5); glutSwapBuffers(); } void reshape(int w, int h) { glViewport(0, 0, (GLsizei) w, (GLsizei) h); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(60, (GLfloat)w/(GLfloat)h, 0.01, 20.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(0.0, 0.0, R, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0 ); } void keyboard(unsigned char key, int x, int y) { switch (key) { case 'b': big = (big + 1) % 360; glutPostRedisplay(); break; case 'B': big = (big - 1) % 360; glutPostRedisplay(); break; default: break; } } void spinDisplay(void) { big = (big + 1) % 360; glutPostRedisplay(); } int main (int argc, char** argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH); glutInitWindowSize(500, 500); glutInitWindowPosition(100, 100); glutCreateWindow(argv[0]); init(); glutDisplayFunc(display); glutReshapeFunc(reshape); glutKeyboardFunc(keyboard); glutIdleFunc(spinDisplay); glutMainLoop(); return 0; }