I am trying to wrap a texture on a sphere primitive, but I get multiple instances of the texture wrapped all around. My code snippet is: glTexGeni tcS, tgTextureGenMode, tgmObjectLinear glTexGeni tcT, tgTextureGenMode, tgmObjectLinear glEnable glcTextureGenS glEnable glcTextureGenT ''Draw textured sphere glPushMatrix glBindTexture glTexture2D, gaTextures(0) glTranslated 0, 0, 0 glScaled 0.3, 0.3, 0.3 gluSphere QuadObj, 10#, 16, 20 glPopMatrix Also, I have a really nice earth texture I want to use, but it is a 2160x1080 resolution. How do I use a texture that is not square? Thanks for your help.

i hope this will be posted correctly because i ''ve had some probelm in the past with the code posted anyway this is it

void CSphere::Build( int n )
{

int i,j;
float t1,t2,t3;
float deltaT,deltaF,c1,s1,c2,s2,c3,s3,u,du,dv,v,v1;
float phi1=__PI/2.0f;

SphereSize=n;
Lenght=n/2;

///////////////////////////////////////////////
// Handle special cases

if (n < 0 ) n = -n;
if (n <= 4 || n==0) n=4;

//////////////////////////////////////////////
// calculate constants for faster performance

deltaF=(phi1+phi1)/(float)Lenght;
deltaT=(2*__PI)/(float)n;
t1=phi1+deltaF;
t2=phi1;
du=1.0f/(float)n;
dv=2.0f*du;
v=0.0f;
v1=dv;
Verts=0;

for ( j=0; j {

c1=FastCos(t1);
s1=FastSin(t1);
c2=FastCos(t2);
s2=FastSin(t2);

t3=0.0f;

u=0.0f;

for ( i=0; i<=n; i++ )
{

c3=FastCos(t3);
s3=FastSin(t3);

Vert[Verts].p[2]=c2*c3;
Vert[Verts].p[1]=s2;
Vert[Verts].p[0]=c2*s3;
Vert[Verts].t[0]=u;
Vert[Verts].t[1]=v;
Verts++;

Vert[Verts].p[2]=c1*c3;
Vert[Verts].p[1]=s1;
Vert[Verts].p[0]=c1*s3;
Vert[Verts].t[0]=u;
Vert[Verts].t[1]=v1;
Verts++;

t3+=deltaT;

u+=du;

}

t1+=deltaF;

t2+=deltaF;

v+=dv;

v1+=dv;

}


}

you can use the vertex.p both cor coordinate and normal since its a sphere with a radius of exactly 1 , this is the code taht generates a sphere in my engine , accordingly to the distance, you may vary the factor ''n'' to enhance the tessellation or lower it and more you need this function to draw it


k=0;
glBegin(GL_TRIANGLE_STRIP);
for (j=0;j for (i=0;i<=SphereSize;i++)
{
glTexCoord2f(Vert[k].t[0],Vert[k].t[1]);
glNormal3f(Vert[k].p[0],Vert[k].p[1],Vert[k].p[2]);
glVertex3f(Vert[k].p[0],Vert[k].p[1],Vert[k].p[2]);k++;
glTexCoord2f(Vert[k].t[0],Vert[k].t[1]);
glNormal3f(Vert[k].p[0],Vert[k].p[1],Vert[k].p[2]);
glVertex3f(Vert[k].p[0],Vert[k].p[1],Vert[k].p[2]);k++;
}
glEnd();

byez.

AAAAhhh it is happened again!!!
beetween the glBegin.... and the cycle for there is another cycle

for ( j=0 ; j < Lenght ; j++ )

put this beetween glBegin ..... and the first cycle.