openGL中三维图形变换上机实验.docx

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2017-12-13 发布于河南
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openGL中三维图形变换上机实验.docx

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openGL中三维图形变换上机实验

#include windows.h#include gl/gl.h#include gl/glu.h#include gl/glut.h#include math.h// Rotation amountsstatic GLfloat xRot = 0.0f;static GLfloat yRot = 0.0f;// Called to draw scenevoid RenderScene(void){// Clear the window with current clearing colorglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);glPushMatrix();glRotatef(xRot, 1.0f, 0.0f, 0.0f);glRotatef(yRot, 0.0f, 1.0f, 0.0f);// Front faceglBegin(GL_POLYGON);glColor3f(0, 1, 1);glVertex3f(50.0f,50.0f,50.0f);glVertex3f(50.0f,-50.0f,50.0f);glVertex3f(-50.0f,-50.0f,50.0f);glVertex3f(-50.0f,50.0f,50.0f);glEnd();// Back FaceglBegin(GL_POLYGON);// CyanglColor3f(1.0f, 0.0f, 0.0f);glVertex3f(50.0f,50.0f,-50.0f);glVertex3f(50.0f,-50.0f,-50.0f);glVertex3f(-50.0f,-50.0f,-50.0f);glVertex3f(-50.0f,50.0f,-50.0f);glEnd();// Top FaceglBegin(GL_POLYGON);glColor3f(0.0f, 1.0f, 0.0f);glVertex3f(50.0f,50.0f,-50.0f);glVertex3f(50.0f,50.0f,50.0f);glVertex3f(-50.0f,50.0f,50.0f);glVertex3f(-50.0f,50.0f,-50.0f);glEnd();glBegin(GL_POLYGON);glColor3f(1.0f, 0.0f, 1.0f);glVertex3f(50.0f,-50.0f,-50.0f);glVertex3f(50.0f,-50.0f,50.0f);glVertex3f(-50.0f,-50.0f,50.0f);glVertex3f(-50.0f,-50.0f,-50.0f);glEnd();glBegin(GL_POLYGON);glColor3f(1.0f, 1.0f, 0.0f);glVertex3f(50.0f,50.0f,50.0f);glVertex3f(50.0f,50.0f,-50.0f);glVertex3f(50.0f,-50.0f,-50.0f);glVertex3f(50.0f,-50.0f,50.0f);glEnd();glBegin(GL_POLYGON);glColor3f(1.0f, 1.0f, 1.0f);glVertex3f(-50.0f,50.0f,50.0f);glVertex3f(-50.0f,50.0f,-50.0f);glVertex3f(-50.0f,-50.0f,-50.0f);glVertex3f(-50.0f,-50.0f,50.0f);glEnd(); glPopMatrix();// Show the graphicsglutSwapBuffers();}// This function does any needed initialization on the rendering// context. void SetupRC(){// Black backgroundglClearColor(0.0f, 0.0f, 0.0f, 1.0f );glEnable(GL_DEPTH_TEST);//glEnable(GL_DITHER);glShadeModel(GL_SMOOTH); }void SpecialKeys(int key, int x, int y){if(key == GLUT_KEY_UP)xRot-= 5.0f;if(key == GLUT_KEY_DOWN)xRot += 5.0f;if(key == GLUT_KEY_LEFT)yRot -= 5.0f;if(key == GLUT_KEY_RIGHT)yRot += 5.0f;if (key==GLUT_KEY_F1){gl