I would like to “attach” a directional light to a camera. I would like the light to be paralell with the camera view angle.
I thought it would be possible to do this this way:

dLight.x=cameraPos.x;
dLight.y=cameraPos.y;
dLight.z=cameraPos.z;
dLight.lookAt(cameraTarget);

This doesn’t seem to work at all. Is this the correct way? Or how would I tackle this problem?

How about this?
I have not tested this.

About DirectionalLight, read “Let there be light” part in follow article.
http://away3d.com/tutorials/Introduction_to_Materials

this is correct.

doesn’t seem to work for me. The light is static, even though I update it’s posistion & direction

@Fabirice
Thank you.

@mole

This type of light does not have a concept of location, only direction. As such, the constructor or the direction property is used to define the angle the light is emminating from. The light from a DirectionalLights has a constant intensity, meaning that it makes no difference how far an object is away from the light source, it will be illuminated in the same way.

You don’t need set the position of dLight.
Just update it’s direction property.

If you can’t get correct result, try this code too.

Good luck.

Still, it doesn’t work for me. If I set the direction manually, I can make the light direction change. If I use the camera forward vector… the light always comes from above. Very strange…

I think I fixed it. The reason was I set it’s direction before it was added to the scene. I then add it to the scene, but any update after that didn’t work.
If I start updating the direction after it’s been added, it seems to work as expected.