Add texture to teapot object using

Mon Mar 19, 2012 12:32 am

Add texture to teapot object using openGL

Code:: #include <stdlib.h> #include <GL/glut.h> #include "RgbImage.h" GLfloat xRotated, yRotated, zRotated; GLuint texture[1]; // Storage For One Texture ( NEW ) /* * Read a texture map from a BMP bitmap file. */ void loadTextureFromFile(char *filename) { glClearColor (0.0, 0.0, 0.0, 0.0); glShadeModel(GL_FLAT); glEnable(GL_DEPTH_TEST); RgbImage theTexMap( filename ); // Pixel alignment: each row is word aligned (aligned to a 4 byte boundary) // Therefore, no need to call glPixelStore( GL_UNPACK_ALIGNMENT, ... ); glGenTextures(1, &texture[0]); // Create The Texture glBindTexture(GL_TEXTURE_2D, texture[0]); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); // Typical Texture Generation Using Data From The Bitmap glTexImage2D(GL_TEXTURE_2D, 0, 3, theTexMap.GetNumCols(), theTexMap.GetNumRows(), 0, GL_RGB, GL_UNSIGNED_BYTE, theTexMap.ImageData() ); } /* * Draw the texture in the OpenGL graphics window */ void drawScene(void) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glEnable(GL_TEXTURE_2D); glBindTexture(GL_TEXTURE_2D, texture[0]); glLoadIdentity(); glTranslatef(0.0,0.0,-5); glRotatef(yRotated, 0, 1, 0); glRotatef(zRotated, 0, 0, 1); glutSolidTeapot(1); // glutSolidSphere(1,50,50); glFlush(); glDisable(GL_TEXTURE_2D); } void resizeWindow(int x, int y) { if (y == 0 || x == 0) return; //Nothing is visible then, so return //Set a new projection matrix glMatrixMode(GL_PROJECTION); glLoadIdentity(); //Angle of view:40 degrees //Near clipping plane distance: 0.5 //Far clipping plane distance: 20.0 gluPerspective(40.0,(GLdouble)x/(GLdouble)y,0.5,20.0); glMatrixMode(GL_MODELVIEW); glViewport(0,0,x,y); //Use the whole window for rendering } void keyboard (unsigned char key, int x, int y) { switch (key) { case 27: exit(0); break; default: break; } } char* filename = "./salt_on_spoon.bmp"; void idleFunc(void) { yRotated += 0.01; zRotated += 0.01; drawScene(); } int main(int argc, char** argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH); glutInitWindowSize(240, 240); glutInitWindowPosition(100, 100); glutCreateWindow(argv[0]); loadTextureFromFile( filename ); glutDisplayFunc(drawScene); glutReshapeFunc(resizeWindow); glutKeyboardFunc(keyboard); glutIdleFunc(idleFunc); glutMainLoop(); return 0; }

Similar to c-opengl-examples/add-texture-to-cube3d-t9181.html
but with changing the main file.

Attachments

: tea-pot-teature.png (27.27 KiB) Viewed 15381 times