so i managed to get the ray traces working in game but i can’t seem to lift anything. any help would be appreciated
Hi Whodafawkno 
Welcome to the forums!
Looking at your blueprint very quickly, i see that you have not provided a target for the ‘Add Physics Handle Component’ node, which if i remember correctly should be ‘Hit Actor’ or ‘Hit Component’ from the ‘Break Hit Results node’. Below is a link to how it should look:
Also i would make sure that any objects you are trying to pick up are of the object type ‘Physics Body’ and have a mass <500.
Any problems, let me know and i can assist tonight when i am home.
Your array seems broken. Recheck the tutorial and the Array value.
Do you have any accessed none errors?
response: i also applied physics to the cow and changed the mass to almost nothing and it wouldn't work... but i tried that before posting this to the forums to no avail
update: i have found these errors as compared to the original tut… but i still have the same errors after testing…
Hey man,
That is me home so lets see if we can fix this for you.
- You are right, there is no need to attach a target to the ‘add physics handle’ node. My bad.
- When your linetrace collides with your cow, does a red cube appear where it intersected?
I would upload my blueprint, but it is so messy with other things at the moment that it would likely confuse you further. To make you aware i am also working with first person and have it working.
i rechecked array values… i rechecked the details on the created variables… i can’t find any more errors atm… i don’t have a full enough knowledge of ue4 to know what might be causing the problem.
btw i also tried it in first person and got it working… i think it is either something i overlooked, or it’s not compatible with 3rd person without modifying it somehow beyond my knowledge. and yes i get hit boxes on the cow from raytrace
i still don’t have a solution to why this isn’t working? anything else anyone needs from me to figure this out?
Hey mate,
Can you upload your blueprint so i can take a look today? Work is quiet today so i should get a minty to have a look.
Thanks
No you didnt checked the array… Its empty. I created the system for myself too a while ago and i know this error ^^
Check again if your trace is hitting a valid object that has simulated physics and a override mass of 501.
Afternoon. below is a dropbox link to a working third person blueprint which i done today by following the tutorial.
This is working and i have tried replicating your errors but have yet to come across anything that would kick up the accessed none error.
I have tested this and can pickup a suitably sized cube which has a mass of <500 and has the collision presets set as PhysicsActor.
i did re check my arrays but i only found the one that was different (not saying that i am perfect, obviously something isn’t working) my question is can you see in my blueprint picture which one it is? or what do you need me to get a picture of for you? which one of your arrays were off? i am a total noob to unreal booleans/arrays etc… and i have re read other tuts on simulated physics… i made sure the cows mass was below 500… and i rechecked hit detection… just treat me like a 5 year old… i really am learning everything from the ground up this past week… don’t assume i know anything about the engine… cause i don’t
SOLVED!!! i am so happy… like i said i am a noob and i knew nothing about unreal more then a week ago… so i was unaware of the proper method of creating a phys actor… thank you ConnorTheScot for your saying “collision presets set as PhysicsActor” cause i googled that verbatim and found this video that describes the method of doing it with a blueprint… my error was clicking my mesh after placing it on the map… then simulating physics from the details tab… which did not work for me… i HAD to create a blueprint from the mesh and check simulate physics for it to work properly… thanks for all of your help guys… i was almost going to scrap the blueprint…
Morning mate, well that was a positive message to check in the morning!
Great to hear that things are working and apologies i did not get you to check that sooner.
I too am new to the engine and just happen to have been working on a project where i used the same tutorial.
Best of luck mate, and feel free to get in touch if you run into anything else.
yeah thanks again connor… i have a bit of a learning curve… but this engine is amazing…