How to paint on mesh?

Development Programming & Scripting Blueprint
1

I need help with the best way to let the player paint on a mesh.

Something like this but without the stencil and motion controls.

This is what I got so far using a black circle decal and its what I need but I’m not sure if this is the best way of doing it.

2

There is a TUT out there for this, I will see if I can find it.

3
4

Thank you! Check it out now.

5

I’m sorry this is my fault. I meant how to let the player paint on a mesh.

6

Nah, my bad. I miss read. Sorry

7

I just changed it. Thanks tho.

8

Could you use a line trace, get location and put a decal there?

9

Had a little go at it and it works. Just got to speed up the shooting.

I used these 2 Tuts. With the second one, instead of spawning an emitter, I spawned a decal.

10

thanks again.

11

Here is the Decals I’m working with. I should have put this information up first. My fault again.

This is what I had at first. I guess the real question I’m asking is, is it okay to spawn so many decals and never give them a lifespan?

13

But when you spawn, you can set lifespan.

Test it out. Find a way to view your frame rate, and go nuts on a huge wall. Go over the top, see how much it affects your FPS.

14

I don’t want to so the image will stay on the mesh but if the player use too many decals by drawing something more detail will that kill performance?

15

Ok I try that.

16

The only issue I had, was they started to disappear after awhile, event set to infinite.

My computer is under spec, so that may be the issue. But ran in to trouble between 180+

17

That happen to me too a few times. I just thought maybe I did something that shouldn’t have been done with the level bp.

18

NO, it would appear that even on infinite that they disappear. I had some go at 5-6 if I waited ling enough to put another lot down.

Might be a bug, or a setting in world/project setting.

Looks like I am not too much help, but it does appear not to affect the FPS from my end.

19

Have asked this, if they answer you might have your answer

Regards

20

Yea I just check and my FPS is not getting hit hard. Only when it’s a lot and I’m very close to the mesh it goes down but nothing crazy. Thanks anyway.

21

Hello,

In this thread, you’ll find a project where you can draw on a board. Maybe what you are looking at : Whiteboard Blueprint - Released Projects - Unreal Engine Forums