Particles over UMG using capture 2D

anonymous_user_f147373d · February 25, 2015, 1:02pm

I’m trying to create some particle effects over UMG, like when u earn points there’s sparkles and other shiny things going on over point value.

So my idea is to create room (like blue/green box, except that black background give best results so far) with capture 2d and particle emitter. Then attach material created from render target to image in widget.
So far I set material to Masked and shading model to Unlit, and here starts problem when I pick one of channels to create mask. I got nice opacity mask but I lose some of color information.

Is there possibility to create mask without losing any color? Or just walk it around avoiding colors associated with mask?

Luos · February 25, 2015, 3:05pm

Any chance you can show the material node setup?

anonymous_user_f147373d · February 25, 2015, 3:20pm

I don’t have much experience with materials so its rely simple.

By multiplying mask I manage to get less color lose but sharper edge on mask =/

Luos · February 25, 2015, 3:31pm

Ok, give me a few minutes.

Luos · February 25, 2015, 4:04pm

UE4 RGB Channel/Particle Explaining - YouTube Just made this, which should explain some basic stuff on particle color thingies.

Edit: not sure whats going on with the sound, it works fine on my computer.
yay for weird youtubes.

anonymous_user_f147373d · February 25, 2015, 5:40pm

Thanks for help. Nice video, but u need to fix dual audio.
Not exactly what I’m asking, but give me some idea. Maybe I did’n expressed clearly ( my eng. sucks ).

So the easiest way to explain is by screenshots

I got Capture 2D “recording” particle emitter.

Then I attach Render Target to material (applying RGB output solve color issue, change Blend mode to additive solve opacity problem )

And apply material to IMG in widget

If u got some suggestion to improve it I’m listening.

Once ageing thanks for inspiration.

Edit: Fixed IMG