[Lite] createArcRotateCamera, getPosition() is missing

Bugs
1

Hello, based on

getPosition() is missing?

2

Babylon Lite is built on pure data + functions - cameras are plain state objects, and behavior lives in standalone, tree-shakable functions. To get a camera’s view matrix, you use the standalone getViewMatrix(camera) function.

3

The getPosition() function is shown on the Lite docs he shared, but the function is not exported. Also, the position would be different than the view matrix?

4

I didn’t tell that position is the view matrix.
As shown in the first PG,

const viewMatrix = getViewMatrix(camera);
const cameraWorldMatrix = mat4Invert(viewMatrix);

const position = {
    x: cameraWorldMatrix![12],
    y: cameraWorldMatrix![13],
    z: cameraWorldMatrix![14],
};

But, as I see, now there is even simpler way. Cameras expose worldMatrix, including any parent transform, and their position is read from its final translation column.

const worldMatrix = camera.worldMatrix;

const position = {
    x: worldMatrix[12],
    y: worldMatrix[13],
    z: worldMatrix[14],
};

console.log(position);

The result is the same in both examples.

5

There is getCameraPosition(camera) function exported that does the worldMatrix you mention. But still the docs mention a getPosition() function exposed, my guess is this should be replaced by getCameraPosition()

6

cc @georgie

7

docs fixed here ! docs(camera): document standalone position helper by georginahalpern · Pull Request #491 · BabylonJS/Babylon-Lite