Anonymní profil Karel – Programujte.com

pfff, uz to vidim, ctverec mam zadavany v souradnicich s f a trojuhelniky davam naprimo ... ted otazka, jak to mam prevest, ab to fungovalo?

Predem diky

Ahoj,

mam mensi problem s openGL, kdyz pouziju nasledujici kus kodu :

int DrawGLScene(GLvoid)         // Here's Where We Do All The Drawing
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear Screen And Depth Buffer
glLoadIdentity();         // Reset The Current Modelview Matrix
glTranslatef(-1.5f,0.0f,-6.0f);      // Move Left 1.5 Units And Into The Screen 6.0
glBegin(GL_TRIANGLES);        // Drawing Using Triangles
  glVertex3f( 0.0f, 1.0f, 0.0f);     // Top
  glVertex3f(-1.0f,-1.0f, 0.0f);     // Bottom Left
  glVertex3f( 1.0f, -1.0f, 0.0f);     // Bottom Right
glEnd();           // Finished Drawing The Triangle
glTranslatef(3.0f,0.0f,0.0f);      // Move Right 3 Units
glBegin(GL_QUADS);         // Draw A Quad
  glVertex3f(-1.0f, 1.0f, 0.0f);     // Top Left
  glVertex3f( 1.0f, 1.0f, 0.0f);     // Top Right
  glVertex3f( 1.0f,-1.0f, 0.0f);     // Bottom Right
  glVertex3f(-1.0f,-1.0f, 0.0f);     // Bottom Left
glEnd();           // Done Drawing The Quad
return TRUE;          // Keep Going
}

vykresli mi to vlevo trojuhlenik, vpravo ctverec,

ovsem kdyz kod upravim a budu tam chtit vykreslit trs trojuhelniku, nestane se nic a po spusteni je pouze vpravo ctverec, ovsem s barvou nastavenou na trs trojuhelniku, tudiz jako by to ten cely kod preskocilo a nevim proc...

tady upraveny kod:

int DrawGLScene(GLvoid)         // Here's Where We Do All The Drawing
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear Screen And Depth Buffer
glLoadIdentity();         // Reset The Current Modelview Matrix
glTranslatef(-1.5f,0.0f,-6.0f);      // Move Left 1.5 Units And Into The Screen 6.0
   glColor3f(1.0f, 0.0f, 0.0f);
    glBegin(GL_TRIANGLE_FAN);                   // vykresleni trsu trojuhelniku
        glVertex2i(300, 150);
        glVertex2i(250, 160);
        glVertex2i(270, 190);
        glVertex2i(290, 200);
        glVertex2i(310, 200);
        glVertex2i(330, 190);
        glVertex2i(350, 160);
    glEnd();           // Finished Drawing The Triangle
glTranslatef(3.0f,0.0f,0.0f);      // Move Right 3 Units
glBegin(GL_QUADS);         // Draw A Quad
  glVertex3f(-1.0f, 1.0f, 0.0f);     // Top Left
  glVertex3f( 1.0f, 1.0f, 0.0f);     // Top Right
  glVertex3f( 1.0f,-1.0f, 0.0f);     // Bottom Right
  glVertex3f(-1.0f,-1.0f, 0.0f);     // Bottom Left
glEnd();           // Done Drawing The Quad
return TRUE;          // Keep Going
}

Omlouvam se, to jsem zapomnel pripsat - Visual Studio 2010

Zacinam si hrat s openGL v C++ a hned ze zacatku mam problem...

Zkousim triialni kod, co mi jen vytvori prazdne okno:
[code]#pragma comment(lib,"glut32.lib")

#include <gl/glut.h>
void WinMain(int argc, char** argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize(500,500);
glutInitWindowPosition(0,0);
glutCreateWindow("Simple"); /* ... */
}[/code]

A stále dokola mi to vyhazuje tyto chyby:
[code]error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup c:\Users\kafooo\documents\visual studio 2010\Projects\learning_opengl\learning_opengl\MSVCRTD.lib(crtexe.obj) learning_opengl
[/code]
[code]LNK1120: 1 unresolved externals c:\users\kafooo\documents\visual studio 2010\Projects\learning_opengl\Debug\learning_opengl.exe 1 1 learning_opengl
[/code]

Na netu jsem nasel, ze to casto byva chybnym odkazem na .h a .lib soubor, ale ty mam ve spravnych slozkach, na glut32.lib jsem pro jistotu zadal cestu pres link preferences a stale stejna chyba...

Predem diky za pomoc