[SOLVED]How to properly rotate a mesh with yours physic Imporstor?

[cpu_sam]

Hello, I'm trying to rotate a mesh with mesh.rotate(BABYLON.Axis.Y, 0.1, BABYLON.Space.LOCAL) but like it's attached to a physicsImpostor the impostor not rotate, only the mesh. And so, I'm trying to do this movement: http://playground.babylonjs.com/#NFJFE

Following the example to my mesh go ahead I must rotate a little and move on the axis target (like Z is the front), but the "obvious" code about not works with impostor, and I supose that I should rotate it to make the same effect of the air plane's link.

I'm a 2d programmer and trying to learn 3d with babylonJS, I still not learn about quaternions (planning to see so on)
Thanks for any help.
NOTE: I've searched in google many times but no luck

[Pryme8]

https://www.babylonjs-playground.com/#2ADVLV#4

[cpu_sam]

Thank you for your help Prime8.

Well, let me explain better. For example: I have a block in the position (0,0,0), for default I use the local axis Z (positive) as the front of object.

When I run block.rotate(BABYLON.Axis.Y, 45 degrees, BABYLON.Space.LOCAL);//45 degrees just for calc

So the front of object stays in 45 degrees, and the movement of block should be in 45 degrees when move with block.position.z += 1, and not just in the axis Z, but will be in two axis (X and Z). Like this example of air plane: http://playground.babylonjs.com/#NFJFE

My problem is: I cannot move in that way (in X and Z when rotate the front in Y axis), the block just follow the world axis instead of follow the local rotate axis o block (follow the front of it)

So, I think that impostor wasn't rotate, but just the mesh.

 

[Pryme8]

A PG showing what is going on with the method you are trying would help.
 

[cpu_sam]

Ok, I will make two example. Just give me some time.

[Pryme8]

Then I will help ^_^.

[cpu_sam]

Man, I solved the problem hehehe I was remade the example and studying the air plane example and I notice that in the air plane example they don't move like this: airPlane.position.z += 1; but they use the translate method, like this: airPlane.translate(BABYLON.Axis.Z, speed, BABYLON.Space.LOCAL);

For now, thank you Pryme8 and I will let my example here in the case of some one need (attached)

 

3dMovement.zip

[Wingnut]

Hi cpu_sam... and P8.  Sam, mesh that have impostors... are sometimes "moved" with applyImpulse() or setLinearVelocity().  There are also physics springs and motors that can translate a mesh-with-impostor.

https://www.babylonjs-playground.com/#15AFCG#24

There's a little applyImpulse playground.

WASD keys for the camera nav.

Arrow keys for impulses.

There is a small amount of friction on ground and box, so, box has SOME tendency to tip.

Here is the same playground... except it uses setLinearVelocity.

https://www.babylonjs-playground.com/#15AFCG#25

Rotations can be done with setAngularVelocity(), or, you can use a fancy 2-impulse "twist" method, too.

One more?  Ok.  https://www.babylonjs-playground.com/#15AFCG#27

Here, I am using the arrow keys to do various 'rotate' and 'translate' commands, making sure the physics impostors are staying sync'd.  Looking good.

I think you have a good solution.  I downloaded, unzipped, and looked-over your scene (thx for providing that zip). 

I believe it's ready for physics-enabled.  Looks good.  Fun experiments ahead for you.  Welcome to 3D, BJS-style.  You're doing great.

[cpu_sam]

5 hours ago, Wingnut said:

One more?  Ok.  https://www.babylonjs-playground.com/#15AFCG#27

Cool example man, I still not tried to move with impostor, but surely I will study your example. Thank you.