OpenGL---instance sphere drawing cone

Use OpenGL interface to create the corresponding solid ball, cone, ring directly. The effect is as follows:

header File

You need to import the corresponding GL library:

You can increase the number of slices of a circular line with a diameter distribution on the z axis based on "+" (the z axis as the earth's axis, similar to a warp)stacks The number of lines around the z axis (similar to the Parallels on Earth)

Add Effect:

Reduced effect:

Full code:

#include "stdafx.h" #include "Windows.h" #include "math.h" #include "stdlib.h" #include "gl/gl.h" #include "gl/glu.h" #inc
Lude "gl/glut.h" static int slices = 16;

static int stacks = 16;

	static void resize (int width, int height) {const float AR = (float) width/(float) height;
	Glviewport (0, 0, width, height);
	Glmatrixmode (gl_projection);
	Glloadidentity ();

	Glfrustum (-ar, AR,-1.0, 1.0, 2.0, 100.0);
	Glmatrixmode (Gl_modelview);
Glloadidentity ();
	} static void Display () {const Double t = glutget (glut_elapsed_time)/1000.0;

	Const double A = t*90.0; Glclear (Gl_color_buffer_bit |
	Gl_depth_buffer_bit);

	Glcolor3d (0, 1, 0);
	Glpushmatrix ();
	Gltranslated (-2.4, 1.2,-6);
	Glrotated (60, 1, 0, 0);
	Glrotated (A, 0, 0, 1);

	Glutsolidsphere (1, slices, stacks);//solid Ball glpopmatrix ();
	Glpushmatrix ();
	gltranslated (0, 1.2,-6);
	Glrotated (60, 1, 0, 0);
	Glrotated (A, 0, 0, 1);

	Glutsolidcone (1, 1, slices, stacks);//Solid cone glpopmatrix ();
	Glpushmatrix ();
	Gltranslated (2.4, 1.2,-6); GLrotated (60, 1, 0, 0);
	Glrotated (A, 0, 0, 1);

	Glutsolidtorus (0.2, 0.8, slices, stacks);//Solid Ring Ring Glpopmatrix ();
	Glpushmatrix ();
	Gltranslated (-2.4,-1.2,-6);
	Glrotated (60, 1, 0, 0);
	Glrotated (A, 0, 0, 1);

	Glutwiresphere (1, slices, stacks);//Grid Sphere Glpopmatrix ();
	Glpushmatrix ();
	gltranslated (0,-1.2,-6);
	Glrotated (60, 1, 0, 0);
	Glrotated (A, 0, 0, 1);

	Glutwirecone (1, 1, slices, stacks);//Grid cone Glpopmatrix ();
	Glpushmatrix ();
	Gltranslated (2.4,-1.2,-6);
	Glrotated (60, 1, 0, 0);
	Glrotated (A, 0, 0, 1);

	Glutwiretorus (0.2, 0.8, slices, stacks);//Grid Ring Glpopmatrix ();
Glutswapbuffers ();
		} static void key (unsigned char key, int x, int y) {switch (key) {case 27:case ' Q ': Exit (0);

	Break
		Case ' + ': slices++;
		stacks++;

	Break
			Case '-': if (slices>3 && stacks>3) {slices--;
		stacks--;
	} break;
} glutpostredisplay ();

} static void Idle () {Glutpostredisplay ();}
Const Glfloat light_ambient[] = {0.0f, 0.0f, 0.0f, 1.0f}; ConsT glfloat light_diffuse[] = {1.0f, 1.0f, 1.0f, 1.0f};
Const Glfloat light_specular[] = {1.0f, 1.0f, 1.0f, 1.0f};

Const Glfloat light_position[] = {2.0f, 5.0f, 5.0f, 0.0f};
Const Glfloat mat_ambient[] = {0.7f, 0.7f, 0.7f, 1.0f};
Const Glfloat mat_diffuse[] = {0.8f, 0.8f, 0.8f, 1.0f};
Const Glfloat mat_specular[] = {1.0f, 1.0f, 1.0f, 1.0f};

Const Glfloat high_shininess[] = {100.0f};
	/**//* Program Entry point */int main (int argc, char *argv[]) {glutinit (&ARGC, argv);
	Glutinitwindowsize (640, 480);
	Glutinitwindowposition (10, 10); Glutinitdisplaymode (Glut_rgb | glut_double |

	Glut_depth);

	Glutcreatewindow ("Freeglut Shapes");
	Glutreshapefunc (resize);
	Glutdisplayfunc (display);
	Glutkeyboardfunc (key);

	Glutidlefunc (idle);
	Glclearcolor (1, 1, 1, 1);
	Glenable (Gl_cull_face);

	Glcullface (Gl_back);
	Glenable (gl_depth_test);

	Gldepthfunc (gl_less);
	Glenable (GL_LIGHT0);
	Glenable (gl_normalize);
	Glenable (gl_color_material);

	Glenable (gl_lighting); GLLIGHTFV (Gl_ligHT0, Gl_ambient, light_ambient);
	GLLIGHTFV (Gl_light0, Gl_diffuse, Light_diffuse);
	GLLIGHTFV (Gl_light0, Gl_specular, light_specular);

	GLLIGHTFV (Gl_light0, gl_position, light_position);
	GLMATERIALFV (Gl_front, gl_ambient, mat_ambient);
	GLMATERIALFV (Gl_front, Gl_diffuse, Mat_diffuse);
	GLMATERIALFV (Gl_front, Gl_specular, mat_specular);

	GLMATERIALFV (Gl_front, gl_shininess, high_shininess);

	Glutmainloop ();
return exit_success; }