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anton1212
04-15-2012, 06:34 AM
I have the code of the bottom, it's supposed to create a list of a cube (box+top face). Later, when I call these Lists with glCallList(box/top) I never get any figure, I tried to move the camera, to put glOrtho with large and small ranks and I never get any image.(I don't mind the the texture in this case, I only want to see a cube)
Any idea?
Thanks


GLvoid BuildLists()
{
box=glGenLists(2); // Generate 2 Different Lists
glNewList(box,GL_COMPILE); // Start With The Box List
glBegin(GL_QUADS);
// Bottom Face
glNormal3f( 0.0f,-1.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
// Front Face
glNormal3f( 0.0f, 0.0f, 1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
// Back Face
glNormal3f( 0.0f, 0.0f,-1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
// Right face
glNormal3f( 1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
// Left Face
glNormal3f(-1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glEnd();
glEndList();
top=box+1; // Storage For "Top" Is "Box" Plus One
glNewList(top,GL_COMPILE); // Now The "Top" Display List
glBegin(GL_QUADS);
// Top Face
glNormal3f( 0.0f, 1.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
glEnd();
glEndList();
}

BionicBytes
04-15-2012, 08:05 AM
Is this the only thing you are drawing?
Usually a 3-d object is drawn with a perspective projection not ortho.
Where's the setup and draw code for the scene?

anton1212
04-15-2012, 08:37 AM
No, it's configured as glPerspective and I never get a result. I try to move forward so the camera contains it but I'm not able to do. All things are set up before. I give you the entire exercise by pm

BionicBytes
04-15-2012, 10:48 AM
Best to discuss these things in the forum. That way everyone benefits.
Your issue lies with the ResizeScene function


gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,40.0f);
glTranslatef(0,0,-20);
glTranslatef(0,8,0);
glTranslatef(2.3,0,0);
glRotatef(40,1,0,0);

What are these glTranslate and rotate commands doing here?
Usually these are used with the ModelView matrix and used to transform the models into camera space.