Hi there,
We have developed a scene which the Mushroom will change size and explode, After explosion, it just like sparkling object hanging in air and slowly flow down.
I want to use the HTC VIVE controller act as both hands to hold on the particle when sparkling comes down, Also, when I wave hands (Controller), those sparkling will also move away.
Can someone please show me how to do these two methods?
Thx
K
Have you tried to add collision to the particles?
When you add collision they should land on the hand and not go through any more. I don’t know if they can also receive any impulse from the collision event (I think they can only give impulse to other objects), so waving them away might not work that well.
We have added collision to particles, but it didn’t help.
Issued: it holds only one layer, which particles can’t stack on top of others.
when hands(controller) release the action, particle stays in air… …it won’t continuous drop to floor.
Waving:
When trigger, it flow away from controller (hands). Plus, waving method still not success. Just like hitting baseball, not nature at all.
Hi Franktech,
Due to company policy, I am unable to release any pictures or videos…
The following is our Scene Concept. (We use HTC Vive to experience the event and also interactive (Controller will display as hand) within the Scene)
There will be a giant (2m height) Ganoderma (Blueprint) on floor, when Viewer walk toward to Ganoderma, viewer able to look under the Ganoderma bottom layer.
3 second later, bottom layer will release very small spore (particles) “like sparking flowing in the air and drop on the floor”.
Now, Viewer should able to use both controllers (act as hand) to catch / hold / wave the spore in the air.
We have added Collision to particle (spore), but it didn’t help too much.
cause when both hands try to hold on the spore in the air, it holds (cause particle set to Freeze), but when hands move away (release), the spore(particle) stays in the air (cause set to freeze), can’t continuous drop to floor. *** not sure how to release the freeze ***
Second, when next spore drops on the same spot/around (on hands), it can’t stack on top of it. (cause setting only allows to bounce away or roll out) *** don’t know how ***
Third, Don’t know how to make wave scenario within the spore, so it makes the spore fly away (like air wave) when viewer wave controller.
Any ideal?
Thx
K
That definitely sounds like it is not possible with vanilla particles (or only with a lot of effort).
I wrote a code plugin which allows you (among other things) to control the particles directly from an object blueprint, so your hands could directly move the particles based on their position:
https://cultrarius.github.io/UE4ParticleEditorPlugin/#custom
But I think franktech is right, in this case it would probably be easier to not use particles and let the engine do the heavy lifting.
Hi Cultrarius,
Thx, I tried to go through link, but most of the videos are unable to play.
Error: Unsupported video type or invalid file path
Possible update the video link?
Thx
K
Hey Kelvin,
the videos are encoded with the webm format, which older browser might not be able to play. You should be able to see them with a current build of Chrome/Firefox. If you are using Safari you can watch them by installing the VLC plugin.