Make a plane face to player's location: learning how to use find look at rotation

[ViaCognita]

Hi!

I’m just learning. And, in the process, I’ve thought how to make a plane to face to a location in world. In this case (0, 0, 100).

To test it I have an actor with a plane of 100x100 as a static mesh, placed on the level:

I want to make that the plane’s normal vector points to the Player Start location (0, 0, 100). With normal vector I mean this:

I have tried this:

Using the plane’s actor at start location, and (0, 0, 100) as end location, but I don’t get what I want:

How can I do it?

Thanks!

[ClockworkOcean]

Face camera via Material (without Particle System)

[Everynone]

@ViaCognita

How can I do it?

You’re adding rotation instead of setting it.

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@ViaCognita

I want to make that the plane’s normal vector points to the Player (location)

You can make rotators from many axes and order them to avoid ambiguity.

[DragonRelt]

You actually almost had it, in the begining its the Z that you want to rotate since its up and down only and if you rotate the x or y then it adds a 20 or 30 degree angle to your character.

[ViaCognita]

@ClockworkOcean, @Everynone and @DragonRelt, thanks a lot for your answers, but I have just realised that I have not explained myself well. I’m so sorry.

I’m trying to draw a plane between to points. After that, I want to rotate the plane to face the player. The code to do it is (I’ve divided into three images):

To see the changes better, I have moved the plane actor:

With the last node unlinked, I get this:

With the last node linked:

But I want to get:

To take last image I have pressed F8 in the editor, and rotate the X axis 90º.

By the way, the plane could be anywhere, so I don’t know if rotating the X-axis by 90 degrees will always work. In this example, is 90º because the plane and the actor has the same Z value.

Thanks!

[Everynone]

@ViaCognita

But I want to get:

As mentioned above, you can order axes to avoid abiguity. Have a look at the helicopter example:

Spawning Object (emitter) with the right rotation

A lot of things! Too many to mention, honestly. all the light calculation revolves around it, the angle at which light bounces of every surface you see physics calculation, think spheres bouncing of a wall at correct angles is the ramp in the pic below too steep for my character to walk on? if I make rotation from “normal” I get the rotation of the surface Yes, here’s the normal - a vector that is perpendicular to the surface: [310px-Normal_vectors_on_a_curved_surface.svg] But there …

[ViaCognita]

Maybe, my problem is that I don’t understand this:

@Everynone

You can make rotators from many axes and order them to avoid ambiguity.

I can search for how to make rotators from axes, but I have no idea about how to order them.

[Everynone]

There’s quite a bit of confusion I can’t follow here.

• you’re not drawing a plane, you’re rotating an actor that owns a mesh component. Correct?
• the rotation in the last pic is not 90. It’s 45 degrees. Correct?
• is it local / world / actor / component? Too many unknowns…

What is the ultimate goal? Have a 45 degree plane rotated towards the camera?

Note that the pin order of the Combine Rotators node matters.

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And then there’s @ClockworkOcean suggestion. Learning is great but perhaps you’re trying to learn the wrong thing and this solution is the one to go for. Definitely most performant and least fussy.

[ViaCognita]

@Everynone

you’re not drawing a plane, you’re rotating an actor that owns a mesh component. Correct?

Correct:

@Everynone

the rotation in the last pic is not 90. It’s 45 degrees. Correct?

No, it’s 90 degrees. I’ve rotated the X axis 90 degrees.

What I did, using blueprint, was to rotate the ends of the plane to be at the start and end point.

While it’s running, I have pressed F8 and rotated the roll of the actor to 90 degrees to make the actor face the camera.

@Everynone

is it local / world / actor / component? Too many unknowns…

Sorry, I don’t know. I think is world rotation, but not sure.

@Everynone

but perhaps you’re trying to learn the wrong thing

By the way, what’s that “thing”?

If you need more information, what I’m trying to do is to draw a line between two points. To do it, I’m using an actor with a square plane as a static mesh.

To rotate the actor like in the last picture, I’ve done the following method:

But it doesn’t work in all cases: