How to change the up and right axis in right handed coordinate system

Questions
1

I have an application that loads a model.

my server sends back response information about what axis to use for the right and up orientation in the following format:

picScene

I am using three js which uses the right hand coordinate system so i need to convert what ever the server says to this system.

upAxis and rightAxis is always returned and possible values are: x_positive, x_negative, y_positive, y_negative, z_positive, z_negative.

I created a starter code but i am not sure what else to do or what else needs to be done:

function rotate() {
    var a = state.currentInfo; //stores the values for upAxis and rightAxis
	
	//EXAMPLE FOR X axis
    if (a.upAxis === "x_positive") {
        //object itself
        scene.rotation.x = -90 * Math.PI/180;
    }
}

How can i set the upAxis and rightAxis depending on what the server says

2

These types of conversion are not easy to handle. Just rotating the entire scene is one possible solution (we are actually doing this in ColladaLoader2). A real conversion of vertex information is more complicated. Maybe you find some information in this PR: https://github.com/mrdoob/three.js/pull/11540

Is it possible to do the conversion in the content creation tool when you perform the export?

3

thanks for your reply. how can i do this for rotating the scene?

4

see https://github.com/mrdoob/three.js/blob/master/examples/js/loaders/ColladaLoader2.js#L2663-L2667

5

this shows z up only. is there anywhere i can get y and x up too? and x,y,z axis right too?

6

Sry, i haven’t the conversions memorized. But i’m sure the almighty Google search will help you further :blush: