Tree billboard rotation

[Fabio451]

Hi guys.
I'm using billboards to add trees to my scene.
Since billboards always face camera, it seems that the trees detach from the ground when rotating on an horizontal axis.

Is there a way to make a billboard rotate only on the vertical axis?
Should I implement my own code to get this particular rotation?

Bye.

[hendu]

It's common to use static crossing quads. They look better than just one rotating quad.

[Fabio451]

Thank you, Hendu.
Is there some example or tutorial?
It's not clear to me how to do it.

[Fabio451]

I'm doing it by creating planes with createPlaneMesh().
The effect is not so bad.
Is this the correct way? Or there is a better way?

[Cube_]

you could just make it a 3D model with two crossed planes, this has the benefit of allowing you to instantiate them for potentially large performance gains.

[Mel]

There is really no right or wrong way of doing something. Eficient or ineficient maybe... but not wrong or right per-se (maybe wrong or right to some degree if you take as right some eficient and wrong something ineficient, but that's just starting to rant ) Ahem.

irr Billboards are nice if you render a few, but it renders faster to submit a lot of polygons instead of just two, as the irrlicht billboards do. Besides, sending the polygons by yourself, you have the chance to do with those polygons whatever you want, so i'd encourage you to learn how to handle meshes on your own and that you generated your trees... The results may be surprising

[REDDemon]

In some old post buried in the forum there's the tree generator wich has the axis aligned billboard scene node, it is a pity the axis aligned bill board was not included in irrlicht api