000
16.12.2006, 15:39 Uhr
~Sven1980
Gast
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Hallo!
Bin im moment dabei den Mantel des Zylinders zu programmieren. Mein Problem ist, dass sich die letzten beiden Flächen nicht treffen. Liegt eventuell daran, dass irgendwas mit dem Winkel nicht stimmt. Kann mir aber nicht erklären was da falsch sein sollte.
Könnt ihr mir sagen woran es liegt?
Vielen Dank schon mal!
Grüße!
| Code: |
void cylinder(){
const float radius = 1.0f;
float hoehe = 2.0f;
// clear buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// switch to modelview matrix
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// viewing transformations
glTranslated(-PAN_X,-PAN_Y,-EYE_DISTANCE);
build_rotmatrix(TRANSFORM_MATRIX, CURRENT_QUATERNION);
glMultMatrixf(&TRANSFORM_MATRIX[0][0]);
glColor3f(1.0f,0.0f,0.0f);//rot
// unit box with vertex array and quad strip
static GLfloat geometry[] = {
(float)(radius*cos(0.0f)), (float)(radius*sin(0.0f)), hoehe,
(float)(radius*cos(0.0f)), (float)(radius*sin(0.0f)), hoehe+1,
(float)(radius*cos(45.0f)), (float)(radius*sin(45.0f)), hoehe,
(float)(radius*cos(45.0f)), (float)(radius*sin(45.0f)), hoehe+1,
(float)(radius*cos(90.0f)), (float)(radius*sin(90.0f)), hoehe,
(float)(radius*cos(90.0f)), (float)(radius*sin(90.0f)), hoehe+1,
(float)(radius*cos(135.0f)), (float)(radius*sin(135.0f)), hoehe,
(float)(radius*cos(135.0f)), (float)(radius*sin(135.0f)), hoehe+1,
(float)(radius*cos(180.0f)), (float)(radius*sin(180.0f)), hoehe,
(float)(radius*cos(180.0f)), (float)(radius*sin(180.0f)), hoehe+1,
(float)(radius*cos(225.0f)), (float)(radius*sin(225.0f)), hoehe,
(float)(radius*cos(225.0f)), (float)(radius*sin(225.0f)), hoehe+1,
(float)(radius*cos(270.0f)), (float)(radius*sin(270.0f)), hoehe,
(float)(radius*cos(270.0f)), (float)(radius*sin(270.0f)), hoehe+1,
(float)(radius*cos(315.0f)), (float)(radius*sin(315.0f)), hoehe,
(float)(radius*cos(315.0f)), (float)(radius*sin(315.0f)), hoehe+1,
(float)(radius*cos(360.0f)), (float)(radius*sin(360.0f)), hoehe,
(float)(radius*cos(360.0f)), (float)(radius*sin(360.0f)), hoehe+1
};//end geometry[]
static GLshort topology[] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3,GL_FLOAT,0,geometry);
glDrawElements(GL_QUAD_STRIP,16,GL_UNSIGNED_SHORT,topology);
glDisableClientState(GL_VERTEX_ARRAY);
glutSwapBuffers();
};
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