I have an object which I first want to rotate (about it’s own center) then translate it to some point. I have a glm::quat that holds the rotation and a glm::vec3 that holds the point to which it needs to be translated.

```
glm::vec3 position;
glm::quat orientation;
glm::mat4 modelmatrix; <-- want to combine them both in here
modelmatrix = glm::translate(glm::toMat4(orientation),position);
```

Then at my render function I do…

```
pvm = projectionMatrix*viewMatrix*modelmatrix;
glUniformMatrix4fv(pvmMatrixUniformLocation, 1, GL_FALSE, glm::value_ptr(pvm));
```

…and render…

Unfortunately the object just orbits around the origin when I apply a rotation (the farther the “position” from the origin, the larger the orbit).

When I apply only the position it translates fine. When I apply only the rotation it stays at the origin and rotates about it’s center (as expected). So why does it go weird when I apply them both? Am I missing something basic?

thanks in advance,

Jubei