根据样本图,生成可以直接贴到球体上的图。-问答-阿里云开发者社区-阿里云

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根据样本图,生成可以直接贴到球体上的图。

a123456678 2016-03-05 13:40:47 1074

根据样本图,生成可以直接贴到球体上的图。以解决球体两级过采样以及边界拼缝问题。C++或者C#都行。给出源码。。跪谢各位大牛

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  • a123456678
    2019-07-17 18:53:18
     /*
     * Copyright (c) 1993-1997, Silicon Graphics, Inc.
     * ALL RIGHTS RESERVED 
     * Permission to use, copy, modify, and distribute this software for 
     * any purpose and without fee is hereby granted, provided that the above
     * copyright notice appear in all copies and that both the copyright notice
     * and this permission notice appear in supporting documentation, and that 
     * the name of Silicon Graphics, Inc. not be used in advertising
     * or publicity pertaining to distribution of the software without specific,
     * written prior permission. 
     *
     * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
     * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
     * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
     * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
     * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
     * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
     * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
     * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
     * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
     * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
     * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
     * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
     * 
     * US Government Users Restricted Rights 
     * Use, duplication, or disclosure by the Government is subject to
     * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
     * (c)(1)(ii) of the Rights in Technical Data and Computer Software
     * clause at DFARS 252.227-7013 and/or in similar or successor
     * clauses in the FAR or the DOD or NASA FAR Supplement.
     * Unpublished-- rights reserved under the copyright laws of the
     * United States.  Contractor/manufacturer is Silicon Graphics,
     * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
     *
     * OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
     */
    
    #include <GL/glut.h>
    #include <stdlib.h>
    #include <stdio.h>
    
    #define stripeImageWidth 32
    GLubyte stripeImage[4*stripeImageWidth];
    
    #ifdef GL_VERSION_1_1
    static GLuint texName;
    #endif
    
    void makeStripeImage(void)
    {
       int j;
    
       for (j = 0; j < stripeImageWidth; j++) {
          stripeImage[4*j] = (GLubyte) ((j<=4) ? 255 : 0);
          stripeImage[4*j+1] = (GLubyte) ((j>4) ? 255 : 0);
          stripeImage[4*j+2] = (GLubyte) 0;
          stripeImage[4*j+3] = (GLubyte) 255;
       }
    }
    
    /*  planes for texture coordinate generation  */
    static GLfloat xequalzero[] = {1.0, 0.0, 0.0, 0.0};
    static GLfloat slanted[] = {1.0, 1.0, 1.0, 0.0};
    static GLfloat *currentCoeff;
    static GLenum currentPlane;
    static GLint currentGenMode;
    static float roangles;
    
    void init(void)
    {
       glClearColor (0.0, 0.0, 0.0, 0.0);
       glEnable(GL_DEPTH_TEST);
       glShadeModel(GL_SMOOTH);
    
       makeStripeImage();
       glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
    
    #ifdef GL_VERSION_1_1
       glGenTextures(1, &texName);
       glBindTexture(GL_TEXTURE_1D, texName);
    #endif
       glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, GL_REPEAT);
       glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
       glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    #ifdef GL_VERSION_1_1
       glTexImage1D(GL_TEXTURE_1D, 0, GL_RGBA, stripeImageWidth, 0,
                    GL_RGBA, GL_UNSIGNED_BYTE, stripeImage);
    #else
       glTexImage1D(GL_TEXTURE_1D, 0, 4, stripeImageWidth, 0,
                    GL_RGBA, GL_UNSIGNED_BYTE, stripeImage);
    #endif
    
       glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
       currentCoeff = xequalzero;
       currentGenMode = GL_OBJECT_LINEAR;
       currentPlane = GL_OBJECT_PLANE;
       glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, currentGenMode);
       glTexGenfv(GL_S, currentPlane, currentCoeff);
    
       glEnable(GL_TEXTURE_GEN_S);
       glEnable(GL_TEXTURE_1D);
       //glEnable(GL_CULL_FACE);
       glEnable(GL_LIGHTING);
       glEnable(GL_LIGHT0);
       glEnable(GL_AUTO_NORMAL);
       glEnable(GL_NORMALIZE);
       glFrontFace(GL_CW);
       //glCullFace(GL_BACK);
       glMaterialf (GL_FRONT, GL_SHININESS, 64.0);
       roangles = 45.0f;
    }
    
    void display(void)
    {
       glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    
       glPushMatrix ();
       glRotatef(roangles, 0.0, 0.0, 1.0);
    #ifdef GL_VERSION_1_1
       glBindTexture(GL_TEXTURE_1D, texName);
    #endif
       //glutSolidTeapot(2.0);
       glutSolidSphere( 2.0, 32, 32 );
       glPopMatrix ();
       glFlush();
    }
    
    void reshape(int w, int h)
    {
       glViewport(0, 0, (GLsizei) w, (GLsizei) h);
       glMatrixMode(GL_PROJECTION);
       glLoadIdentity();
       if (w <= h)
          glOrtho (-3.5, 3.5, -3.5*(GLfloat)h/(GLfloat)w, 
                   3.5*(GLfloat)h/(GLfloat)w, -3.5, 3.5);
       else
          glOrtho (-3.5*(GLfloat)w/(GLfloat)h, 
                   3.5*(GLfloat)w/(GLfloat)h, -3.5, 3.5, -3.5, 3.5);
       glMatrixMode(GL_MODELVIEW);
       glLoadIdentity();
    }
    
    void idle()
    {
        roangles += 0.1f;
        glutPostRedisplay();
    }
    int main(int argc, char** argv)
    {
       glutInit(&argc, argv);
       glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
       glutInitWindowSize(256, 256);
       glutInitWindowPosition(100, 100);
       glutCreateWindow (argv[0]);
       glutIdleFunc( idle );
       init ();
       glutDisplayFunc(display);
       glutReshapeFunc(reshape);
    
       glutMainLoop();
       return 0;
    }
    0 0
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