ok i am still learning DX but i am making a game based on the CreateTeapot meshs i have rendered 2 meshs to screen and set mesh teapot -10 z on that axis what i do next is use Vec3Add to find the distance from teapot1 to teapot2 now i have the distance which is -10.0f , but what i am want todo is give the teapot some AI so it will rotate to the teapots 1 postion but if i put SetTransform Trans * Rot , the mesh decides to rot in a big circle and i just want it to rotate to the postion the other teapot is facing , ive tried many things with SetTransform and if i try with just rot then i cant postion it at -10.0f , ive heard if you call transform on the same matrix it overwrites it , so i how do i place the teampot -10.0f on z axis as well as rotate depending on what the ADD.z returns, i can do a diagram if you need one

hey thanks alot , so i understand is

d3ddev->SetTransform(D3DTS_WORLD , &(rot *TeapotMatrix2));

what ever order that is in it has to be in the same order in code

rotation then translation

now what i need todo is work out the current angle the teapot is at and rotate to face the other teapot ,

D3DXVECTOR3 vec3Add;
D3DXVec3Add(&vec3Add,&Teapot1Controls , &Teapot2Controls);
sprintf(gbuffer,"%s %f\n" , "vec3Add.z", vec3Add.z); //backbuffer desc
WriteConsole(Console , gbuffer, strlen(gbuffer),NULL,NULL); //output mouse

if(vec3Add.z < -10.0f)
{
sprintf(gbuffer,"%s\n" , "less"); //backbuffer desc
WriteConsole(Console , gbuffer, strlen(gbuffer),NULL,NULL); //output mouse
rotate = 6.0f; //i need to find the exact value to rotate to :D
}
else
{
rotate = 0.0f;
}


[Edited by - Anddos on November 14, 2008 5:19:29 AM]