hey,
I’m trying to make a practice game where the player can hold a camera and through that camera he can see certain stuff the he can’t see with his own eye, i got everything set up using a “scene capture 2D” camera. but how do i make an object only visible to this camera ?
if it’s not possible to do in blueprints, can you give me a step by step tutorial of how to do that in code (because i’v less than 1% experience with code)
thanks in advance
Is there possibility to see that object trough camera on normal way at same time? Or when player switches to camera he/she has only camera view?
Because how to make object visible trough camera and not visible without camera on same picture, for this i have no idea.
For hidding/showing objects in runtime there is easy solution: you can set visibility of objects. However shadows and static lighting on such objects can be messed up.
To show/hide stuff in your case:
This is best solution for your case, or rather its most resource friendly.
Another solution is to make event dispatcher in player pawn or controller that has visibility variable, then bind to that dispatcher from every object blueprint and show/hide stuff in them.
Works almost like above loop, it just looks more ugly with all that binding.
thank you for the reply, unfortunately when the player is looking through the camera, the camera view is about 75% of the player view, so i need the object to render in the “scene capture 2d” camera and not in the player camera.
if that is not possible, a different approach can be like this, when looking through the camera the real player view is visible only on the sides of the screen, so if i’m looking at the object from certain degrees while looking through the camera , then the object will appear.
so how can i set the player viewing angle as a condition ?
using a “box trace” i almost got it working, though i’m having trouble getting the trace box size to change depending on the distance between the player and the object
ok so i got it working, but in a very ugly way, using the box trace and some manual calculations to change the box trace size depending on the distance, if anyone want’s to know how to do it, ask me, as it’s too much trouble to break down.
Hi, Vampire737 can you please explain me that.
And what if you spawn it since you put the camera in some range in front of you while the animation is executing… camera on, objetct spawned, camera off object destroyed.
greetings
still waiting for explanation on this render hack…
hey everyone
First of all I want to sincerely apologize to everyone who asked for the method used, and i’m sorry i took literally years to respond, I ended up abandoning this project and was inactive on these forums for a long time, that’s way I only just saw your comments.
i dug up the files and below I tried my best to break down my method for doing this, though i still think it’s a rather ugly solution and will probably not work in most cases
also i made it ages ago and i was a lot less knowledgeable in coding and unreal engine in general, but here goes:
the system i was trying to do was a camera that the player holds that can see certain objects that the player can’t see, to achieve that i used a 2nd camera component in the player character with a Render target texture used in a material set to a screen, i attached a video to show the effect below:
to achieve the illusion of the objects only appearing in the camera feed I used the fact that the camera the player is holding is blocking most of their view, thus by creating a box trace from the camera with a set half size i can hide the object when it’s to far to the edge of the screen, making it disappear when the player is looking it from the edge of their view around the camera, by varying the half size based on the object distance I kept the illusion from failing when the player became closer or farther away from the object.
below i attached several screenshots breaking down the blueprint:
these all then run the box trace and below is what i connected to it:
these connect to the “start” location input and the “orientation” input in the box trace
then i can calculate the “Y Value Change Rate” and the “Z Value Change Rate” as above.
these values are all pre set, and the above blueprint is just for explanation.
Below is a video showing the effect:
sorry for not reponding, here the explaination above
If still someone is looking for this, there is a very easy option. On Components, you can set the option visible on scene captures only. That solved my problem. Hope it helps
I was looking for this!
Finding a 10 days old answer in a thread with 3 years of inactivity feels pretty special 
Thank you!
I’m making the ghost hunting like game and I was looking for any clean solution to get the ghost visible by the video camera hold by player in his hand (Scene Capture Component 2D), but not visible by the player eyes (Camera Component on player head).
Your solution is exactly what I need! Thank you
BTW I think LzBOM1517’s answer should be marked as solution for this.
In (scenecapture component) have functions for that.
