C++ 刀片的摩擦效应(glRotatef)不';行不通
我试图为刀片创建一个扭曲效果(不是旋转),但它根本不起作用。特别是,我尝试使用C++ 刀片的摩擦效应(glRotatef)不';行不通,c++,opengl,glut,C++,Opengl,Glut,我试图为刀片创建一个扭曲效果(不是旋转),但它根本不起作用。特别是,我尝试使用glRotatef函数旋转轴,并使其显示为刀片扭曲 任何帮助都会很好 #include <GL/glut.h> #include <math.h> #include <stdio.h> #include <stdlib.h> #define PI 3.14159265 static GLfloat lpos[] = { 0.0, 0.0, 4.0, 1.0 }; st
glRotatef
函数旋转轴,并使其显示为刀片扭曲
任何帮助都会很好
#include <GL/glut.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#define PI 3.14159265
static GLfloat lpos[] = { 0.0, 0.0, 4.0, 1.0 };
static GLfloat white[] = { 1.0, 1.0, 1.0, 1.0 };
static GLfloat black[] = { 0.0, 0.0, 0.0, 1.0 };
static GLfloat red[] = { 1.0, 0.0, 0.0, 1.0 };
static GLfloat yellow[] = { 1.0, 1.0, 0.0, 1.0 };
static float alpha = 0.0;
static float beta = PI / 6.0;
static float zoom = 10.0;
static bool lightSource = true;
float twistConstant = 0;
float rotateConstant = 0;
float numberOfObj = 3;
float numberOfTriangles = 1;
static GLdouble cpos[3];
void DrawTopTriangleSet(){
glMaterialfv(GL_FRONT, GL_EMISSION, black);
glMaterialfv(GL_BACK, GL_EMISSION, black);
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, yellow);
glMaterialfv(GL_BACK, GL_AMBIENT_AND_DIFFUSE, yellow);
glBegin(GL_TRIANGLE_STRIP);
for (int i = 180; i >= 0; i = i - numberOfTriangles){
if (i > 90){
glPushMatrix();
glLoadIdentity();
glRotatef(i, 1, 0, 0);
glPopMatrix();
}
glNormal3f(0, sin(PI / 4 + twistConstant), cos(PI / 4 + twistConstant - PI / 4));
glVertex3f(i*PI / 180, 0, 0.5*sin(i*PI / 180));
glVertex3f(i*PI / 180, 0.5*sin(i*PI / 180), twistConstant*-sin(i*PI / 180));
}
glEnd();
}
void DrawBottomTriangleSet(){
glMaterialfv(GL_FRONT, GL_EMISSION, black);
glMaterialfv(GL_BACK, GL_EMISSION, black);
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, yellow);
glMaterialfv(GL_BACK, GL_AMBIENT_AND_DIFFUSE, yellow);
glBegin(GL_TRIANGLE_STRIP);
for (int i = 180; i >= 0; i = i - numberOfTriangles){
if (i > 90){
glPushMatrix();
glLoadIdentity();
glRotatef(i, 1, 0, 0);
glPopMatrix();
}
glNormal3f(0, -sin(PI / 4 + twistConstant), cos(PI / 4 + twistConstant - PI / 4));
glVertex3f(i*PI / 180, -0.5*sin(i*PI / 180), twistConstant*sin(i*PI / 180));
glVertex3f(i*PI / 180, 0, 0.5*sin(i*PI / 180));
}
glEnd();
}
void DrawBackTriangleSet(){
glMaterialfv(GL_FRONT, GL_EMISSION, black);
glMaterialfv(GL_BACK, GL_EMISSION, black);
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, yellow);
glMaterialfv(GL_BACK, GL_AMBIENT_AND_DIFFUSE, yellow);
glBegin(GL_TRIANGLE_STRIP);
for (int i = 180; i >= 0; i = i - numberOfTriangles){
if (i > 90){
glPushMatrix();
glLoadIdentity();
glRotatef(i, 1, 0, 0);
glPopMatrix();
}
glNormal3f(0, 5 * sin(PI - twistConstant), 5 * cos(PI - twistConstant));
glVertex3f(i*PI / 180, 0.5*sin(i*PI / 180), twistConstant*-sin(i*PI / 180));
glVertex3f(i*PI / 180, -0.5*sin(i*PI / 180), twistConstant*sin(i*PI / 180));
}
glEnd();
}
void DrawInsideTriangleSet(){
glMaterialfv(GL_FRONT, GL_EMISSION, black);
glMaterialfv(GL_BACK, GL_EMISSION, black);
glBegin(GL_TRIANGLE_STRIP);
for (int i = 180; i >= 0; i = i - numberOfTriangles){
if (i > 90){
glPushMatrix();
glLoadIdentity();
glRotatef(i, 1, 0, 0);
glPopMatrix();
}
glVertex3f(i*PI / 180, 0.5*sin(i*PI / 180), twistConstant*-sin(i*PI / 180));
glVertex3f(i*PI / 180, 0, 0.5*sin(i*PI / 180));
glVertex3f(i*PI / 180, -0.5*sin(i*PI / 180), twistConstant*sin(i*PI / 180));
}
glEnd();
}
void writemessage()
{
printf(" X => x++ <= Move light source in direction of +X\n");
printf(" Y => y++ <= Move light source in direction of +Y\n");
printf(" Z => z++ <= Move light source in direction of +Z\n");
printf("\n");
printf("^X => x-- <= Move light source in direction of -X\n");
printf("^Y => y-- <= Move light source in direction of -Y\n");
printf("^Z => z-- <= Move light source in direction of -Z\n");
printf("\n");
printf(" ^ => Move camera up\n");
printf(" > => Move camera right\n");
printf(" < => Move camera left\n");
printf(" down arrow => Move camera down\n");
printf("\n");
printf(" t => More Twist\n");
printf(" f => Less Twist\n");
printf("\n");
printf(" q => More Propeller\n");
printf(" f => Less Propeller\n");
printf("\n");
printf(" w => More Triangles\n");
printf(" s => Less Triangles\n");
printf("\n");
printf(" 0 => Toggling light source\n");
printf("\n");
printf(" r => Rotates Propeller\n");
printf("\n");
printf(" You can not move the light source when the light source is off !!!");
}
void reshape(int w, int h)
{
glViewport(0, 0, (GLsizei)w, (GLsizei)h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0, (GLfloat)w / (GLfloat)h, 0.01, 20.0);
glMatrixMode(GL_MODELVIEW);
}
void display(void)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
cpos[0] = zoom * cos(beta) * sin(alpha);
cpos[1] = zoom * sin(beta);
cpos[2] = zoom * cos(beta) * cos(alpha);
gluLookAt(cpos[0], cpos[1], cpos[2], 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
if (lightSource == true){
glLightfv(GL_LIGHT0, GL_POSITION, lpos);
glMaterialfv(GL_FRONT, GL_EMISSION, white);
glPushMatrix();
glTranslatef(lpos[0], lpos[1], lpos[2]);
glutSolidSphere(0.1, 10, 8);
glPopMatrix();
glMaterialfv(GL_FRONT, GL_EMISSION, black);
}
glRotatef(rotateConstant, 0, 0, 1);
for (int i = 0; i < numberOfObj; i++){
glPushMatrix();
glRotatef(i * 360 / numberOfObj, 0, 0, 1);
DrawTopTriangleSet();
DrawBottomTriangleSet();
DrawBackTriangleSet();
DrawInsideTriangleSet();
glPopMatrix();
}
// Cone
glMaterialfv(GL_FRONT, GL_EMISSION, black);
glMaterialfv(GL_BACK, GL_EMISSION, black);
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
glMaterialfv(GL_BACK, GL_AMBIENT_AND_DIFFUSE, red);
glPushMatrix();
glTranslated(0, 0, -1.5);
glutSolidCone(1, 2, 50, 50);
glPopMatrix();
// Back of Cone
glMaterialfv(GL_FRONT, GL_EMISSION, black);
glMaterialfv(GL_BACK, GL_EMISSION, black);
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
glMaterialfv(GL_BACK, GL_AMBIENT_AND_DIFFUSE, red);
glBegin(GL_POLYGON);
glNormal3f(0, 0, 1);
for (int i = 0; i <= 360; i++)
{
glVertex3f(cos(i*PI / 180) * 1, sin(i*PI / 180) * 1, -1.5);
}
glEnd();
glutSwapBuffers();
glFlush();
}
void keyboard(unsigned char key, int x, int y)
{
switch (key) {
case 27:
exit(0);
break;
case 'x':
if (lightSource == true)
lpos[0] = lpos[0] + 0.2;
glutPostRedisplay();
break;
case 'X':
if (lightSource == true)
lpos[0] = lpos[0] - 0.2;
glutPostRedisplay();
break;
case 'y':
if (lightSource == true)
lpos[1] = lpos[1] + 0.2;
glutPostRedisplay();
break;
case 'Y':
if (lightSource == true)
lpos[1] = lpos[1] - 0.2;
glutPostRedisplay();
break;
case 'z':
if (lightSource == true)
lpos[2] = lpos[2] + 0.2;
glutPostRedisplay();
break;
case 'Z':
if (lightSource == true)
lpos[2] = lpos[2] - 0.2;
glutPostRedisplay();
break;
case '+':
if (zoom != 1.5)zoom = zoom - 0.5;
glutPostRedisplay();
break;
case '-':
if (zoom != 15)zoom = zoom + 0.5;
glutPostRedisplay();
break;
case '0':
if (lightSource == true){
glDisable(GL_LIGHT0);
lightSource = false;
}
else{
glEnable(GL_LIGHT0);
lightSource = true;
}
glutPostRedisplay();
break;
case 't':
if (twistConstant <= PI/4){
twistConstant = twistConstant + 0.05;
glutPostRedisplay();
}
break;
case 'f':
if (twistConstant >= 0){
twistConstant = twistConstant - 0.05;
glutPostRedisplay();
}
break;
case 'r':
rotateConstant = rotateConstant + 2;
glutPostRedisplay();
break;
case 'q':
if (numberOfObj <= 6){
numberOfObj++;
glutPostRedisplay();
}
break;
case 'a':
if (numberOfObj >= 0){
numberOfObj--;
glutPostRedisplay();
}
break;
case 's':
if (numberOfTriangles <90){
numberOfTriangles++;
glutPostRedisplay();
}
break;
case 'w':
if (numberOfTriangles > 1){
numberOfTriangles--;
glutPostRedisplay();
}
break;
default:
break;
}
}
void specialkey(GLint key, int x, int y)
{
switch (key) {
case GLUT_KEY_RIGHT:
alpha = alpha + PI / 180;
if (alpha > 2 * PI) alpha = alpha - 2 * PI;
glutPostRedisplay();
break;
case GLUT_KEY_LEFT:
alpha = alpha - PI / 180;
if (alpha < 0) alpha = alpha + 2 * PI;
glutPostRedisplay();
break;
case GLUT_KEY_UP:
if (beta < 0.45*PI) beta = beta + PI / 180;
glutPostRedisplay();
break;
case GLUT_KEY_DOWN:
if (beta > -0.05*PI) beta = beta - PI / 180;
glutPostRedisplay();
break;
default:
break;
}
}
int main(int argc, char** argv)
{
writemessage();
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize(1200, 800);
glutInitWindowPosition(0, 0);
glutCreateWindow(argv[0]);
glClearColor(0.0, 0.0, 0.0, 0.0);
glEnable(GL_DEPTH_TEST);
glShadeModel(GL_SMOOTH);
glEnable(GL_LIGHTING);
glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
glEnable(GL_LIGHT0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0.0, 5.0, 10.0, 0.0, 1.0, 0.0, 0.0, 1.0, 0.0);
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutKeyboardFunc(keyboard);
glutSpecialFunc(specialkey);
glutMainLoop();
return 0;
}
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#定义PI 3.14159265
静态GLfloat LPO[]={0.0,0.0,4.0,1.0};
静态GLfloat白色[]={1.0,1.0,1.0,1.0};
静态GLfloat黑色[]={0.0,0.0,0.0,1.0};
静态GLfloat red[]={1.0,0.0,0.0,1.0};
静态GLfloat黄色[]={1.0,1.0,0.0,1.0};
静态浮动α=0.0;
静态浮动β=PI/6.0;
静态浮动缩放=10.0;
静态布尔光源=真;
浮点数常数=0;
float rotateConstant=0;
浮点数OBJ=3;
float numberOfTriangles=1;
静态GLdouble-cpos[3];
void DrawTopTriangleSet(){
GLMATERIALV(GL_前部,GL_发射,黑色);
GLMATERIALV(GL_背面,GL_发射,黑色);
GLMATERIALV(GL_前部、GL_环境_和_漫反射,黄色);
GLMATERIALV(GL_背面、GL_环境_和_漫反射,黄色);
glBegin(GLU三角带);
对于(int i=180;i>=0;i=i-三角形数){
如果(i>90){
glPushMatrix();
glLoadIdentity();
glRotatef(i,1,0,0);
glPopMatrix();
}
glNormal3f(0,sin(PI/4+扭转常数),cos(PI/4+扭转常数-PI/4));
glVertex3f(i*PI/180,0,0.5*sin(i*PI/180));
glVertex3f(i*PI/180,0.5*sin(i*PI/180),扭转常数*sin(i*PI/180));
}
格伦德();
}
void DrawBottomTriangleSet(){
GLMATERIALV(GL_前部,GL_发射,黑色);
GLMATERIALV(GL_背面,GL_发射,黑色);
GLMATERIALV(GL_前部、GL_环境_和_漫反射,黄色);
GLMATERIALV(GL_背面、GL_环境_和_漫反射,黄色);
glBegin(GLU三角带);
对于(int i=180;i>=0;i=i-三角形数){
如果(i>90){
glPushMatrix();
glLoadIdentity();
glRotatef(i,1,0,0);
glPopMatrix();
}
glNormal3f(0,-sin(PI/4+扭转常数),cos(PI/4+扭转常数-PI/4));
glVertex3f(i*PI/180,-0.5*sin(i*PI/180),扭转常数*sin(i*PI/180));
glVertex3f(i*PI/180,0,0.5*sin(i*PI/180));
}
格伦德();
}
void退税三角形集(){
GLMATERIALV(GL_前部,GL_发射,黑色);
GLMATERIALV(GL_背面,GL_发射,黑色);
GLMATERIALV(GL_前部、GL_环境_和_漫反射,黄色);
GLMATERIALV(GL_背面、GL_环境_和_漫反射,黄色);
glBegin(GLU三角带);
对于(int i=180;i>=0;i=i-三角形数){
如果(i>90){
glPushMatrix();
glLoadIdentity();
glRotatef(i,1,0,0);
glPopMatrix();
}
glNormal3f(0,5*sin(PI-twistConstant),5*cos(PI-twistConstant));
glVertex3f(i*PI/180,0.5*sin(i*PI/180),扭转常数*sin(i*PI/180));
glVertex3f(i*PI/180,-0.5*sin(i*PI/180),扭转常数*sin(i*PI/180));
}
格伦德();
}
void DrawInsideRetrierAngleSet(){
GLMATERIALV(GL_前部,GL_发射,黑色);
GLMATERIALV(GL_背面,GL_发射,黑色);
glBegin(GLU三角带);
对于(int i=180;i>=0;i=i-三角形数){
如果(i>90){
glPushMatrix();
glLoadIdentity();
glRotatef(i,1,0,0);
glPopMatrix();
}
glVertex3f(i*PI/180,0.5*sin(i*PI/180),扭转常数*sin(i*PI/180));
glVertex3f(i*PI/180,0,0.5*sin(i*PI/180));
glVertex3f(i*PI/180,-0.5*sin(i*PI/180),扭转常数*sin(i*PI/180));
}
格伦德();
}
void writemessage()
{
printf(“X=>X++y++z++X--y--z--向上移动相机\n”);
printf(“>=>将相机向右移动\n”);
printf(“<=>将相机向左移动\n”);
printf(“向下箭头=>向下移动摄像头”);
printf(“\n”);
printf(“t=>More Twist\n”);
printf(“f=>更少的扭曲\n”);
printf(“\n”);
printf(“q=>更多螺旋桨”\n);
printf(“f=>更少的螺旋桨\n”);
printf(“\n”);
printf(“w=>更多三角形\n”);
printf(“s=>更少的三角形\n”);
printf(“\n”);
printf(“0=>切换光源\n”);
printf(“\n”);
printf(“r=>旋转螺旋桨\n”);
printf(“\n”);
printf(“当光源关闭时,您不能移动光源!!!”;
}
空洞重塑(整数w,整数h)
{
GLVIEW(0,0,(GLsizei)w,(GLsizei)h);
glMatrixMode(GL_投影);
glLoadIdentity();
glu(45.0,(GLfloat)w/(GLfloat)h,0.01,20.0);
glMatrixMode(GLU模型视图);
}
作废显示(作废)
{
glClear(GL_颜色_缓冲_位| GL_深度_缓冲_位);
glLoadIdentity();
cpos[0]=zoom*cos(beta)*sin(alpha);
cpos[1]=zoom*sin(β);
cpos[2]=zoom*cos(beta)*cos(alpha);
gluLookAt(cpos[0],cpos[1],cpos[2],0.0,0.0,0.0,0.0,1.0,0.0);
如果(光源==真){
glLightfv(GLU LIGHT0,GLU位置,LPO);
GLMATERIALV(GL_前部,GL_发射,白色);
glPushMatrix();
glTranslatef(lpos[0],lpos[1],lpos[2]);
固体球(0.1,10,8);
glPopMatrix();
GLMATERIALV(GL_前部,GL_发射,黑色);
}
glRotatef(rotateConstant,0,0,1);
for(int i=0;ifloat twistAng = someFactor * x;
float twistCos = cos(twistAng);
float twistSin = sin(twistAng);
float yTwisted = twistCos * y - twistSin * z;
float zTwisted = twistSin * y + twistCos * z;