The path of OpenGL (10) Brilliant mobile animations

Brilliant animation effect, Flash, W and s key rotation, R key control Flash switch

The code is as follows:

#include <gl/glut.h> #include <gl/glaux.h> #include <stdio.h> #pragma comment (lib, "Opengl32.lib") # pragma comment (lib, "Glut32.lib") #pragma comment (lib, "Glu32.lib") #pragma comment (lib, "Glut.lib") #pragma comment (lib , "Glaux.lib") void Box (float x, float y, float z)//box {Glpushmatrix (); Glscalef (x, y, z); glenable (gl_texture_2d);//Map Active G Lbegin (gl_quads); gltexcoord2f (0.0f, 0.0f); glvertex3f ( -1.0f, -1.0f, 1.0f);//Pre-GLTEXCOORD2F (1.0f, 0.0f); glvertex3f (1.0f, -1.0f, 1.0f), gltexcoord2f (1.0f, 1.0f); glvertex3f (1.0f, 1.0f, 1.0f); gltexcoord2f (0.0f, 1.0f); glvertex3f ( -1.0f, 1.0f, 1.0f); gltexcoord2f (1.0f, 0.0f); glvertex3f ( -1.0f, -1.0f, -1.0f);//After gltexcoord2f (1.0f, 1.0f); glvertex3f ( -1.0f, 1.0f, -1.0f); gltexcoord2f (0.0f, 1.0f); glvertex3f (1.0f, 1.0f, -1.0f), gltexcoord2f (0.0f, 0.0f); glvertex3f (1.0f, -1.0f, -1.0f); gltexcoord2f (0.0f, 1.0f); glvertex3f ( -1.0f, 1.0f, -1.0f);//gltexcoord2f (0.0f, 0.0f); glvertex3f ( -1.0f, 1.0f, 1.0f); gltexcoord2f (1.0f, 0.0f); glvertex3f (1.0f, 1.0f, 1.0f); gltexcoord2f (1.0f, 1.0f); glvertex3f (1.0f, 1.0f, -1.0f), gltexcoord2f (1.0f, 1.0f); glvertex3f ( -1.0f, -1.0f, -1.0f);//Lower gltexcoord2f (0.0f, 1.0f); glvertex3f (1.0f, -1.0f, -1.0f); gltexcoord2f (0.0f, 0.0f); glvertex3f (1.0f, -1.0f, 1.0f), gltexcoord2f (1.0f, 0.0f); glvertex3f ( -1.0f, -1.0f, 1.0f); gltexcoord2f (1.0f, 0.0f); glvertex3f (1.0f, -1.0f, -1.0f);//Left gltexcoord2f (1.0f, 1.0f); glvertex3f (1.0f, 1.0f, -1.0f), gltexcoord2f (0.0f, 1.0f); glvertex3f (1.0f, 1.0f, 1.0f); gltexcoord2f (0.0f, 0.0f); glvertex3f (1.0f, -1.0f, 1.0f), gltexcoord2f (0.0f, 0.0f); glvertex3f ( -1.0f, -1.0f, -1.0f);//Right gltexcoord2f (1.0f, 0.0f); glvertex3f ( -1.0f, -1.0f, 1.0f); gltexcoord2f (1.0f, 1.0f); glvertex3f ( -1.0f, 1.0f, 1.0f); gltexcoord2f (0.0f, 1.0f); glvertex3f ( -1.0f, 1.0f, -1.0f); Glend (); gldisable (gl_texture_2d);//Cancel Map Glpopmatrix ();} BOOL Loadtexture (char *filename, Gluint &texture) {Aux_rgbimagerec *pimage = Auxdibimageloada (filename),//load bitmap if ( Pimage = = NULL) return false;glgentextures (1, &texture); Generate Map GlbindtexturE (gl_texture_2d, TEXTURE); Stickers effective Glubuild2dmipmaps (gl_texture_2d, 4, Pimage->sizex, Pimage->sizey, Gl_rgb, Gl_unsigned_byte, pImage-> data); Map data return true;} float s = N, r = 0;bool flash, key_r;const int num = 30;typedef struct{int r, G, B; Glfloat Dist; Glfloat angle;} Stars; Stars Star[num];  Glfloat spin; Star rotation Gluint Loop; UINT g_bmp[1];//map number void init () {loadtexture ("i:\\5.bmp", G_bmp[0]); Glshademodel (Gl_smooth); Glclearcolor (0.0f, 0.0f , 0.0f, 0.5f); glcleardepth (1.0f); Glhint (Gl_perspective_correction_hint, gl_nicest);//Real Fine Perspective correction glblendfunc (gl_src_ ALPHA, Gl_one); glenable (gl_blend); for (loop = 0; loop < num; ++loop) {star[loop].angle = 0.0f;star[loop].dist = 1.0f * L Oop/num * 4.0F;STAR[LOOP].R = rand ()% 256;STAR[LOOP].G = rand ()% 256;star[loop].b = rand ()% 256;}} void Renderscene (void) {Glclear (Gl_color_buffer_bit | Gl_depth_buffer_bit); Glbindtexture (gl_texture_2d, g_bmp[0]); glenable (gl_texture_2d); for (loop = 0; loop < num; + +) Loop) {glloadidentity (); Gltranslatef (0.0f, 0.0f, -15); Glrotatef (S, 1.0f, 0.0f, 0.0f), Glrotatef (Star[loop].angle, 0.0f, 1.0f, 0.0f); Gltranslatef (Star[loop].dist, 0.0f, 0.0f), Glrotatef (-star[loop].angle, 0.0f, 1.0f, 0.0f), Glrotatef (-S, 1.0f, 0.0f, 0.0f), if (Flash) {Glcolor4ub (star[ NUM-LOOP-1].R, STAR[NUM-LOOP-1].G, star[num-loop-1].b, 255); Glbegin (gl_quads); gltexcoord2f (0.0f, 0.0f); glvertex3f ( -1.0f, -1.0f, 0.0f); gltexcoord2f (1.0f, 0.0f); glvertex3f (1.0f, -1.0f, 0.0f), gltexcoord2f (1.0f, 1.0f); glvertex3f (1.0f, 1.0f, 0.0f); gltexcoord2f (0.0f, 1.0f); glvertex3f ( -1.0f, 1.0f, 0.0f); Glend ();} GLROTATEF (Spin, 0.0f, 0.0f, 1.0f); Orbit around Z glcolor4ub (STAR[LOOP].R, STAR[LOOP].G, star[loop].b, 255), Glbegin (Gl_quads), gltexcoord2f (0.0f, 0.0f); glvertex3f ( -1.0f, -1.0f, 0.0f); gltexcoord2f (1.0f, 0.0f); glvertex3f (1.0f, -1.0f, 0.0f), gltexcoord2f (1.0f, 1.0f); glvertex3f (1.0f, 1.0f, 0.0f); gltexcoord2f (0.0f, 1.0f); glvertex3f ( -1.0f, 1.0f, 0.0f); Glend (); spin + = 0.01f; Star Revolution Star[loop].angle + = 1.0f * Loop/num; Change the rotation angle star[loop].dist-= 0.01f;Change the distance of the star from the center if (star[loop].dist < 0.0f)//To center {star[loop].dist + = 4.0F;STAR[LOOP].R = rand ()% 256;STAR[LOOP].G = rand ( )% 256;star[loop].b = rand ()% 256;}} Glutswapbuffers ();} void Changesize (int w, int h) {if (H = = 0) H = 1;float ratio = 1.0* W/h;glmatrixmode (gl_projection);//unit projection matrix. Glloadidentity (); glviewport (0, 0, W, h);//Set viewport size for the entire window size gluperspective (, ratio, 1, 1000);//Set the correct projection matrix Glmatrixmode (GL  _modelview);//The following is the setting of the Model View matrix}void keyfunc (unsigned char ch, int x, int y) {if (ch = = ' W ')//hair large reduction s + = 3;else if (ch = = ' s ') s-= 3;IF (ch = = ' R ') {key_r = 1;flash =!flash;} Elsekey_r = 0;} int main (int argc, char * argv[]) {glutinit (&AMP;ARGC, argv); Glutinitdisplaymode (Glut_depth | glut_double | GLUT_RGBA); glutinitwindowposition (glutinitwindowsize); Glutcreatewindow ("Hello OpenGL"); init (); Glutdisplayfunc (Renderscene); Glutidlefunc (Renderscene); Specifies that the function Glutreshapefunc (changesize) is called when the program is idle; Specifies the callback function Glutkeyboardfunc (keyfunc) When the window shape changes,//keyboard callback function Glutmainloop (); return 0;}

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The path of OpenGL (10) Brilliant mobile animations