openGL rotate camera around itself?

Hi, I'm trying to get started with 3D in OpenGL, but my camera only rotates around the coordinate origin! Here's my code: For each model, each frame, I call:

 models[i])->draw(currentShader, projectionMatrix * camera.getTransformation().mat()

In the draw function of each model is then:

 shader.setUniform<Matrix4>(shader.getUniformLocation("MVP"), VP * transformation.mat());

Now I do the cursorPositionCallBack function:

 enviroment.camera.getTransformation().rotate(Transformation::Y, movedX);

So that it always rotates by the given distance!

However, it's about the world-origin. Although I thought I could solve it with this code: (Excerpt from the "Transformation" class:

 Transformation & rotate(Axes axes, float angel, bool degree = true) { Vector3 curT = this->getTranslation(); setTranslation({0, 0, 0}); matrix = glm::rotate(matrix, degree ? glm::radians(angel) : angel, Vector3(axes == X ? 1 : 0, axes == Y ? 1 : 0, axes == Z ? 1 : 0)); setTranslation(curT); return *this; } Transformation & setTranslation(Vector3 values) { matrix[3][0] = values.x; matrix[3][1] = values.y; matrix[3][2] = values.z; return *this; }

The getTranslation method uses the same fields as setTranslation.

In the shader, simply set gl_Position = MVP * vec4 (position); I'm really confused, and not even gpt-4 can tell me the problem for sure!