openGL三维网格坐标,旋转,缩放,灯光设置,纹理读取,模型读取(MFC单文档)

1、openGL三维网格坐标，旋转，缩放，灯光设置，纹理读取，模型读取（MFC单文档）在我的MFC单文档项目中enableview.h和enableview.cpp负责上面的窗口建立，myopenglview.h和myopenglView.cpp主要是功能的实现1.三维网格建立：void GLGrid(float pt1x, float pt1y, float pt1z, float pt2x, float pt2y, float pt2z, int num) const float _xLen = (pt2x - pt1x) / num; const float _yLen = (pt2y -

2、pt1y) / num; const float _zLen = (pt2z - pt1z) / num; glLineWidth(2.f); glLineStipple(1, 0x0303);/线条样式 glBegin(GL_LINES); glEnable(GL_LINE_SMOOTH); int xi = 0; int yi = 0; int zi = 0; /绘制平行于X的直线 for (zi = 0; zi = num; zi+) float z = _zLen * zi + pt1z; for (yi = 0; yi = num; yi+) float y = _yLen * yi

3、 + pt1y; glVertex3f(pt1x, y, z); glVertex3f(pt2x, y, z); /绘制平行于Y的直线 for (zi = 0; zi = num; zi+) float z = _zLen * zi + pt1z; for (xi = 0; xi = num; xi+) float x = _xLen * xi + pt1x; glVertex3f(x, pt1y, z); glVertex3f(x, pt2y, z); /绘制平行于Z的直线 for (yi = 0; yi = num; yi+) float y = _yLen * yi + pt1y; fo

4、r (xi = 0; xi = num; xi+) float x = _xLen * xi + pt1x; glVertex3f(x, y, pt1z); glVertex3f(x, y, pt2z); glEnd();void CmyopenglView:ordination() glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glEnable(GL_BLEND); glEnable(GL_POINT_SMOOTH); /设置反走样 glHint(GL_POINT_SMOOTH_HINT, GL_NICEST); /设置反走样 glEn

5、able(GL_LINE_SMOOTH); glHint(GL_LINE_SMOOTH_HINT, GL_NICEST); glEnable(GL_POLYGON_SMOOTH); glHint(GL_POLYGON_SMOOTH_HINT, GL_NICEST); glRotatef(-45, 0.0, 1.0, 0.0); /网格 glPushMatrix(); glColor3f(0.9f, 0.9f, 0.9f); glTranslatef(-4, -4, -4); GLGrid(0,0,0,8,0,8,20); glPopMatrix(); glPushMatrix(); glTra

6、nslated(-4,4, -4); glRotatef(90, 1.0, 0.0, 0.0); glColor3f(0.9f, 0.9f, 0.0f); GLGrid(0, 0, 0, 8, 0, 8, 20); glPopMatrix(); glPushMatrix(); glTranslatef(-4, -4, -4); glRotatef(90, 0.0, 0.0, 1.0); glColor3f(0.0f, 0.9f, 0.0f); GLGrid(0, 0, 0, 8, 0, 8, 20); glPopMatrix(); glDisable(GL_BLEND); glDisable(

7、GL_LINE_SMOOTH); glDisable(GL_POINT_SMOOTH); glDisable(GL_POLYGON_SMOOTH);我们在ordination（）函数中增加绘制x,y,z坐标的代码void CmyopenglView:ordination() glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glEnable(GL_BLEND); glEnable(GL_POINT_SMOOTH); /设置反走样 glHint(GL_POINT_SMOOTH_HINT, GL_NICEST); /设置反走样 glEnable(

8、GL_LINE_SMOOTH); glHint(GL_LINE_SMOOTH_HINT, GL_NICEST); glEnable(GL_POLYGON_SMOOTH); glHint(GL_POLYGON_SMOOTH_HINT, GL_NICEST); glRotatef(-45, 0.0, 1.0, 0.0); /网格 glPushMatrix(); glColor3f(0.9f, 0.9f, 0.9f); glTranslatef(-4, -4, -4); GLGrid(0,0,0,8,0,8,20); glPopMatrix(); glPushMatrix(); glTranslat

9、ed(-4,4, -4); glRotatef(90, 1.0, 0.0, 0.0); glColor3f(0.9f, 0.9f, 0.0f); GLGrid(0, 0, 0, 8, 0, 8, 20); glPopMatrix(); glPushMatrix(); glTranslatef(-4, -4, -4); glRotatef(90, 0.0, 0.0, 1.0); glColor3f(0.0f, 0.9f, 0.0f); GLGrid(0, 0, 0, 8, 0, 8, 20); glPopMatrix(); /x /glTranslatef(-2, -2, -2); glColo

10、r3f(1.0f, 0.0f, 0.0f); glBegin(GL_LINES); glVertex3f(0.0f, 0.0f, 0.0f); glVertex3f(3.5, 0.0f, 0.0f); glEnd(); glPushMatrix(); glTranslatef(3.5, 0.0f, 0.0f); glRotatef(90.0f, 0.0f, 1.0f, 0.0f); glutWireCone(0.027, 0.09, 10, 10); glPopMatrix(); /y glColor3f(0.0f, 1.0f, 0.0f); glBegin(GL_LINES); glVert

11、ex3f(0.0f, 0.0f, 0.0f); glVertex3f(0.0, 3.5, 0.0f); glEnd(); glPushMatrix(); glTranslatef(0.0, 3.5, 0.0f); glRotatef(90.0f, -1.0f, 0.0f, 0.0f); glutWireCone(0.027, 0.09, 10, 10); glPopMatrix(); /z glColor3f(0.0f, 0.0f, 1.0f); glBegin(GL_LINES); glVertex3f(0.0f, 0.0f, 0.0f); glVertex3f(0.0, 0.0f, 3.5

12、); glEnd(); glPushMatrix(); glTranslatef(0.0, 0.0f, 3.5); glRotatef(90.0f, 0.0f, 0.0f, 1.0f); glutWireCone(0.027, 0.09, 10, 10); glPopMatrix(); glDisable(GL_BLEND); glDisable(GL_LINE_SMOOTH); glDisable(GL_POINT_SMOOTH); glDisable(GL_POLYGON_SMOOTH);、2.基本三维图形创建 点模型/线模型/面模型glColor3f(1.0f, 1.0f, 1.0f);

13、 if (model = 1) if (type = 1) glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); if (type = 2) glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); if (type = 3) glPolygonMode(GL_FRONT_AND_BACK, GL_POINT); auxSolidCube(4); if (model = 2) if (type = 1) glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); if (type = 2) glPolygon

14、Mode(GL_FRONT_AND_BACK, GL_FILL); if(type = 3) glPolygonMode(GL_FRONT_AND_BACK, GL_POINT); auxSolidSphere(3.0); if (model = 3) glPushMatrix(); glRotatef(90, -1.0, 0.0, 0.0); if (type = 1) glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); if (type = 2) glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); if (type = 3

15、) glPolygonMode(GL_FRONT_AND_BACK, GL_POINT); glutSolidCone(3, 3, 100, 100); glPopMatrix(); if (model = 4) if (type = 1) glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); if (type = 2) glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); if (type = 3) glPolygonMode(GL_FRONT_AND_BACK, GL_POINT); glutSolidTeapot(2.5);

16、3.鼠标相应旋转缩放BOOL enableview:OnMouseWheel(UINT nFlags, short zDelta, CPoint pt) / TODO: 在此添加消息处理程序代码和/或调用默认值 double a = zDelta / 120; if (scale + a * 0.1) InvalidateRect(NULL, FALSE); return CView:OnMouseWheel(nFlags, zDelta, pt);void enableview:OnMouseMove(UINT nFlags, CPoint point) / TODO: 在此添加消息处理程序

17、代码和/或调用默认值 if (nFlags & MK_LBUTTON = TRUE) /MessageBox(mouse move function triggered!, attentino, MB_OK); du += point.x - oldmx; /鼠标在窗口x轴方向上的增量加到视点绕y轴的角度上，这样就左右转了 h += 0.03f*(point.y - oldmy); /鼠标在窗口y轴方向上的改变加到视点的y坐标上，就上下转了 if (h15.0f) h = 15.0f; /视点y坐标作一些限制，不会使视点太奇怪 else if (hOnDraw(this-GetDC(); /重

18、绘界面 else if (nFlags & MK_RBUTTON = TRUE) oldmx += point.x - oldmx; oldmy += point.y - oldmy; glTranslatef(oldmx, oldmy, -0.1f); this-OnDraw(this-GetDC(); oldmx = point.x, oldmy = point.y; else oldmx = point.x, oldmy = point.y; /OutputDebugString(_T(mouse upn); /CView:OnMouseMove(nFlags, point);4.键盘相

19、应旋转缩放BOOL CmyopenglView:PreTranslateMessage(MSG* pMsg) if (pMsg-message = WM_KEYDOWN) / If a keydown message if (pMsg-wParam = _T(W) this-rotate_x += 6.0; if (this-rotate_x 360)this-rotate_x = -360; this-InvalidateRect(NULL, FALSE); if (pMsg-wParam = _T(X) this-rotate_x += 6.0; if (this-rotate_x rot

20、ate_x = 360; this-InvalidateRect(NULL, FALSE); if (pMsg-wParam = _T(A) this-rotate_y -= 6.0; if (this-rotate_y rotate_y = 360; this-InvalidateRect(NULL, FALSE); if (pMsg-wParam = _T(D) this-rotate_y += 6.0; if (this-rotate_y 360)this-rotate_y = -360; this-InvalidateRect(NULL, FALSE); if (pMsg-wParam

21、 = _T(Z) this-rotate_z -= 6.0; if (this-rotate_z rotate_z = 360; this-InvalidateRect(NULL, FALSE); if (pMsg-wParam = _T(E) this-rotate_z += 6.0; if (this-rotate_z 360)this-rotate_z = -360; this-InvalidateRect(NULL, FALSE); if (pMsg-wParam = _T(Q) if (scale + 2) InvalidateRect(NULL, FALSE); if (pMsg-

22、wParam = _T(R) scale -= 2; this-InvalidateRect(NULL, FALSE); return CView:PreTranslateMessage(pMsg);5.灯光设置： 单方位灯光/多方位光/多种类型光效果/ 设置材质颜色GLfloat mat_ambient = 0.6f, 0.6f, 0.6f, 1.0f ; / 蓝色的材质环境光GLfloat mat_diffuse = 0.6f, 0.6f, 0.9f, 1.0f ; / 蓝色的材质漫反射光GLfloat mat_specular = 1.0f, 1.0f, 1.0f, 1.0f ; / 全

23、白色的材质镜面反射光GLfloat mat_emission = 0.5f, 0.5f, 0.5f, 1.0f ; / 淡白色的材质辐射光GLfloat no_mat = 0.0f, 0.0f, 0.0f, 1.0f ; / 无光(黑色光),用于关闭某种属性光时应用GLfloat no_shininess = 0.0f ; / 无镜面反射GLfloat low_shininess = 5.0f ; / 低镜面反射指数GLfloat high_shininess = 70.0f ; / 高镜面反射指数void CmyopenglView:InitalLigt() GLfloat light_po

24、sition14 = -52, -16, -50, 0 ; GLfloat light_position24 = -26, -48, -50, 0 ; GLfloat light_position34 = 16, -52, -50, 0 ; GLfloat direction13 = 52, 16, 50 ; GLfloat direction23 = 26, 48, 50 ; GLfloat direction33 = -16, 52, 50 ; GLfloat light_position44 = 52, 16, 50, 0 ; GLfloat light_position54 = 26,

25、 48, 50, 0 ; GLfloat light_position64 = -16, 52, 50, 0 ; GLfloat direction43 = -52, -16, -50 ; GLfloat direction53 = -26, -48, -50 ; GLfloat direction63 = 16, -52, -50 ; GLfloat color14, color24, color34, color44, color54, color64; glClearColor(1, 1, 1, 0); glEnable(GL_DEPTH_TEST); glDepthFunc(GL_LE

26、SS); if (color_type = 0) /彩色灯光 color10 = 1; color11 = 0; color12 = 0; color13 = 1; color20 = 0.5; color21 = 1; color22 = 0; color23 = 1; color30 = 0; color31 = 0; color32 = 1; color33 = 1; color40 = 1; color41 = 0; color42 = 0; color43 = 1; color50 = 0.5; color51 = 1; color52 = 0; color53 = 1; color

27、60 = 0; color61 = 0; color62 = 1; color63 = 1; GLfloat ambient4 = 0.3f, 0.3f, 0.3f, 1.0f ; GLfloat material_color4 = 1, 1, 1, 0.5f ; GLfloat material_specular4 = 0.5f, 0.5f, 0.5f, 0.5f ; GLfloat material_ambient4 = 0.0, 0.0, 0.0, 0.0 ; glLightfv(GL_LIGHT3, GL_POSITION, light_position4); glLightfv(GL

28、_LIGHT3, GL_SPOT_DIRECTION, direction4); glLightfv(GL_LIGHT3, GL_DIFFUSE, color4); glLightfv(GL_LIGHT3, GL_SPECULAR, color4); glLightfv(GL_LIGHT4, GL_POSITION, light_position5); glLightfv(GL_LIGHT4, GL_SPOT_DIRECTION, direction5); glLightfv(GL_LIGHT4, GL_DIFFUSE, color5); glLightfv(GL_LIGHT4, GL_SPE

29、CULAR, color5); glLightfv(GL_LIGHT5, GL_POSITION, light_position6); glLightfv(GL_LIGHT5, GL_SPOT_DIRECTION, direction6); glLightfv(GL_LIGHT5, GL_DIFFUSE, color6); glLightfv(GL_LIGHT5, GL_SPECULAR, color6); glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambient); glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR,

30、material_specular); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, material_color); glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, material_ambient); glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 128); glDisable(GL_LIGHT0); glDisable(GL_LIGHTING); glEnable(GL_LIGHTING); glEnable(GL_LIGHT3); glEnable(GL_LIG

31、HT4); glEnable(GL_LIGHT5); glDisable(GL_COLOR_MATERIAL); return; if (color_type = 1) /白色灯光 glDisable(GL_LIGHT3); glDisable(GL_LIGHT4); glDisable(GL_LIGHT5); glDisable(GL_LIGHTING); GLfloat m_LightPostion4 = 0.0f, 10.0f, 10.0f, 1.0f ; GLfloat ambientLight = 0.25f, 0.25f, 0.25f, 1.0f ; GLfloat diffuse

32、Light = 0.5, 0.5f, 0.5f, 1.0f ; GLfloat specularLight = 0.5f, 0.5f, 0.5f, 1.0f ; glEnable(GL_LIGHTING); glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambientLight); glLightfv(GL_LIGHT0, GL_AMBIENT, ambientLight); glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuseLight); glLightfv(GL_LIGHT0, GL_SPECULAR, specularLigh

33、t); glLightfv(GL_LIGHT0, GL_POSITION, m_LightPostion); glEnable(GL_LIGHT0); glEnable(GL_COLOR_MATERIAL); glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE); else glDisable(GL_LIGHT3); glDisable(GL_LIGHT4); glDisable(GL_LIGHT5); glDisable(GL_LIGHTING); glDisable(GL_COLOR_MATERIAL); glColorMat

34、erial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE); /glDisable(GL_LIGHTING); GLfloat no_ambientLight = 0.0f, 0.0f, 0.0f, 1.0f ; / 用于关掉默认的全局环境光 / 设置光源的颜色 GLfloat ambientLight = 0.8f, 0.8f, 0.8f, 1.0f ; / 白色环境光 GLfloat diffuseLight = 0.8f, 0.8f, 0.8f, 1.0f ; / 白色漫射光 GLfloat specularLight = 0.8f, 0.8f, 0

35、.8f, 1.0f ; / 白色镜面反射光 GLfloat m_LightPostion = 0.0f, 0.0f, 1.0f, 0.0f ; / 光源起始位置 / 1.仅漫射光 if (color_type = 12) glEnable(GL_LIGHTING); /glLightModelfv(GL_LIGHT_MODEL_AMBIENT, no_ambientLight); / 关掉默认的全局环境光 glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambientLight); glLightfv(GL_LIGHT0, GL_AMBIENT, ambientL

36、ight); glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuseLight); glLightfv(GL_LIGHT0, GL_SPECULAR, specularLight); glLightfv(GL_LIGHT0, GL_POSITION, m_LightPostion); glMaterialfv(GL_FRONT, GL_AMBIENT, no_mat); / 关闭材质的环境反射光颜色 glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse); / 设置mat_diffuse的材质漫反射光 glMaterialfv(

37、GL_FRONT, GL_SPECULAR, no_mat); / 关闭材质的镜面反射光颜色 glMaterialfv(GL_FRONT, GL_SHININESS, no_shininess); / 设置材质的镜面反射指数为0 glMaterialfv(GL_FRONT, GL_EMISSION, no_mat); / 关闭材质的辐射光 glEnable(GL_LIGHT0); / 2.仅镜面光 if (color_type = 13) glEnable(GL_LIGHTING); /glLightModelfv(GL_LIGHT_MODEL_AMBIENT, no_ambientLight

38、); / 关掉默认的全局环境光 glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambientLight); glLightfv(GL_LIGHT0, GL_AMBIENT, ambientLight); glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuseLight); glLightfv(GL_LIGHT0, GL_SPECULAR, specularLight); glLightfv(GL_LIGHT0, GL_POSITION, m_LightPostion); glMaterialfv(GL_FRONT, GL_AMBIENT

39、, no_mat); glMaterialfv(GL_FRONT, GL_DIFFUSE, no_mat); glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); glMaterialfv(GL_FRONT, GL_SHININESS, low_shininess); glMaterialfv(GL_FRONT, GL_EMISSION, no_mat); glEnable(GL_LIGHT0); / 3.漫射光与低镜面光 if (color_type = 16) glEnable(GL_LIGHTING); glLightModelfv(GL_

40、LIGHT_MODEL_AMBIENT, no_ambientLight); / 关掉默认的全局环境光 glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambientLight); glLightfv(GL_LIGHT0, GL_AMBIENT, ambientLight); glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuseLight); glLightfv(GL_LIGHT0, GL_SPECULAR, specularLight); glLightfv(GL_LIGHT0, GL_POSITION, m_LightPostion

41、); glMaterialfv(GL_FRONT, GL_AMBIENT, no_mat); glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse); glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); glMaterialfv(GL_FRONT, GL_SHININESS, low_shininess); glMaterialfv(GL_FRONT, GL_EMISSION, no_mat); glEnable(GL_LIGHT0); / 4.辐射光与低镜面光 if (color_type = 18) glEnable(GL_LIGHTING); glLightModelfv(GL_LIGHT_MODEL_AMBIENT, no_ambientLight); / 关掉默认的全局环境光 glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambientLight); glLightfv(GL_LIGHT0, GL_AMBIENT, ambientLight); glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuseLight);