Yet another camera question

[Temptation]

Hello people, just got new to gamedev in general, read a lot here from babylon js forum and learned a lot of new things. 

But I got stuck and wasted almost 4 hours to find out a thing here but just cant.

So my only option is to ask here

I need to make Third person camera, and i got it working. Current implementation is, that I move my "player" regarding absolute location

           UP
LEFT          RIGHT
        DOWN

And the camera forward direction is not taken in consideration.

But what I need Is actually move the player forward regarding the camera forward vector.

Can someone please at least give me the solution how to find camera FW vector ?

[JohnK]

I can resist anything except temptation so must give an answer. Welcome. A search of this forum for the terms camera forward vector will lead you

 

[Temptation]

Oh yeah it worked, thanks

As i didnt find a precise answer on my question, Ill make a post here describing :
 

How to rotate a mesh based on camera forward vector.

First we need to find out camera forward vector:
 

 var forwardVector = BABYLON.Vector3.Normalize(this.mesh.position.subtract(data.scene.activeCamera.position));

And then we need to find the rotation angle : 
 

 var angle = Math.atan2(forwardVector.x, forwardVector.z)

 //And then rotate by Y axes

 this.mesh.rotation = new BABYLON.Vector3(0, angle, 0);;

Thanks! Great forum, learned a lot in 2 days!

[Wingnut]

Hi Temptation... welcome aboard.  Or should I say... "welcome a billboard"? 

http://playground.babylonjs.com/#QKQHS#372

(line 56 - billboardMode... options available for X, Y, Z, or ALL)

Your thing is in lines 63-65 (temporarily deactivated).  Another fun thing is at line 68.

BJS has lots of cool things to play-with, and lots of cool people.  You seem to be one, too.  Good to have you with us!  PARTY!!!

[Temptation]

Hello, wow amazing demo. Thanks)) But I already achieved what was needed for me, I see your demo very usefull when doing enemy turrets or something:) 

This is what kind of movement I have currently.

 

http://gph.is/2clIXGB

 

[Wingnut]

Beautiful!  Well done.  You have your camera move mode, and your vehicle move mode... perfect!