Camera as in a CAD System

[Michuspo]

Hi,

I'm trying to setup the camera as in a CAD system. 

I create a video to show you. Also I create a Playground with my setup, but it is not working. Any idea?

http://www.babylonjs-playground.com/#HDA7V2

Thanks,

 

 

CAD Camera.m4v

[brianzinn]

I created a scene more or less that looks like your video except for the position.y of the shadow light source. Use the middle mouse button to rotate the view.

https://playground.babylonjs.com/#GWK0TQ#8

I noticed you set upVector and useRightHanded system in your PG, but didn't look like those were needed.

[Michuspo]

Hi Brianzinn,

Thanks for your example. It is really nice! Just a point. I need to have the Vertical will be Z instead of Y. What do you recommend? I modify the geometry?

Thanks,

[brianzinn]

I don't know what kind of geometries you mean.  When I export to BabylonJS I use:
Forward: -Z forward
Up: Y Up.

If you are using CSG or your own geometries then you could try to make the mental switch to left handed?  Otherwise maybe an example from you... some matrix operations have right-handed options.  Depends how you want to modify the geometry  - you might get away with a rotation.

[JohnK]

Simplest way 

var myfunction = function(x, y, z) {

    var myvector = BABYLON.Vector3(x, z, y);
    //do things
}

You have to do a bit of thinking to write the code but your users will see a Y up system.

[Michuspo]

Thanks for your answers.

Basically the problem is CAD industry uses Z up, it means that all models, and all devices like 3d scanners.

Maybe, I can apply a transformation, but for example, if I need to analyze a coordenate, section, ... I need to switch back the results too. For that reason, I think is easier to use Z+ positive.

Thanks,

[Arte]

12 hours ago, JohnK said:

Simplest way 

var myfunction = function(x, y, z) {

    var myvector = BABYLON.Vector3(x, z, y);
    //do things
}

You have to do a bit of thinking to write the code but your users will see a Y up system.

That's what I'm doing.