Change camera coordinate system

cocos2d-x C++
1

Hey there.
I’m programmer from small company. And we decide to change our old engine to cocos2d-x with some classes of our script system.
But, I have a huge problem. For compatibility reason I want to change coordinate system of camera. For that I’ve created new camera instance and set for current scene this camera as main(cameraMask and either). But I can’t get how to change axes.

In our current projects origin point is top left point of app and Y axes point from top to bottom, X axes from left to right.

In cocos2d-x axes point from bottom to top and origin placed in bottom left. How to change that in minumum of code. Cause I don’t want to change shaders code(scale -1 by Y and scale textures in shader) or code of nodes.

Is that possible to solve that problem?

2

We do not have a way built in to change the coordinate system.

3

So the only way is to intrude on to source of engine and change that(I should leave our old scipts untoched)?

4

We are OpenGL under the hood. This is why we use the “Right-handed Cartesian Coordinate System”.

I am not sure if one can change it easily or not, in the source.