RayHelper.show

[Dad72]

Hello,

@Deltakosh BABYLON.RayHelper is not accessible in the playground: http://www.babylonjs-playground.com/#KNE0O#15

@getzel the demos playground in the tutorial no longer works (with ray.show() deprecated: see: https://github.com/BabylonJS/Babylon.js/blob/master/dist/preview release/what's new.md#breaking-changes)

error : http://doc.babylonjs.com/tutorials/raycasts

 

[Temechon]

Hi,

ray.show has been removed in last bjs version - If you use 2.5 it works.

If you create a new RayHelp it works.

[Dad72]

yes I know. But the tutorials are outdated in this case and RayHelp is not accessible in the playground.

But I said that I know is ray.show depreciate :

Quote

(with ray.show() deprecated:

 

[Temechon]

So why you say this ? 

1 hour ago, Dad72 said:

BABYLON.RayHelper is not accessible in the playground

Isn't only the method 'ray.show' that is not available ?

The tutorial outdated should be indeed updated

 

[Dad72]

Not RayHelp is not accessible. if the fact that I did BABYLON.r ray propose and not RayHelp

[adam]

Here is a good RayHelper example:

http://www.babylonjs-playground.com/#ZHDBJ#37

[Dad72]

Ah, I do not use it well. But that's 3 more lines for use show (). I preferred as it was before, less complicated.

Why the change more complex. before, it was more direct. Now is really complicated.

I do not understand this change, which does not simplify.

[GameMonetize]

The problem was more about memory. ray.show generated too much code and was not great for that. Now that we have an object to support it we can keep the ray small and efficient 

I'll update the tutorial. Thanks for the hint.

And let's be honest, it is not "Really complicated"

we move from:

ray.show(scene, new BABYLON.Color3(1, 1, 0.1));

to:

var rayHelper = new BABYLON.RayHelper(ray);
rayHelper.show(scene);

 

I think it is a good trade off considering that now we can easily add more features to the helper without touching the pure math function for rays!

[GameMonetize]

And now just one line because I agree, updates should not add more code:

        BABYLON.RayHelper.CreateAndShow(ray, scene, new BABYLON.Color3(1, 1, 0.1));

 

[GameMonetize]

I also updated the doc to add a word on the RayHelper:

https://github.com/BabylonJS/Documentation/blob/master/content/tutorials/01_Play_Pen/Raycasts.md

 

[Dad72]

That is super : BABYLON.RayHelper.CreateAndShow

In made it was hard to understand how to use it, that's why I said it was more complicated. I do not use the right ways to do it.

Thank you for this function that I understand better and is easier.