I 'm not sure how to explain it any further…some or maybe all of my particles have some little white…lighting lines looking things in them during play…If I can go into the particle system editor they are.t there…it’s fine…but during game play they have something else happening…anyone know why???
Can you post a video to a site like YouTube or some images here? Also an image of your material network might help.
Some more info would be great, is this a lit material? Unlit?
Thank you,
This kind of effect is in most of our particle effects. Its almost like white outlines.
Does anyone understand if they changed anything about cascade? This is still a serious issue and we have no idea what’s wrong. The particle system editor does not show any white lines, But In Game It does…and nothing has changed about our particles until the update
That is a strange artifact, can you please export and upload your effect somewhere so we can take a look at it?
Could we possibly give it to you?? How would we do that…or should we just upload a video?? All of the particles have it.
This started happening for me as well!
For me, it happens when I pass negative colors to the particle, more intensive than -1.
Aren’t you using negative colors as well? Or maybe negative alpha?
(By the way, I’m using negative colors because I do want the particle to subtract the DestColor. I’m using an additive material.)
Hey AttemptD and lxiguis -
To begin with you can post a screenshot of the material you are using for one of the offending particle systems as well as a screenshot of the module setups for the emitter. I will try to reproduce, if I can’t I will contact you via email and have you send me the *.uasset directly.
Thank You for you help tracking this down -
Eric Ketchum
Hi Eric,
Any particle system with an Additive material and negative colors should “work”. I have attached onelink text, extract it to /Content. The artifact is more evident when you move the camera.
Hey lxiguis -
After some investigation this white line that is generated is caused by the Temporal Anti-Aliasing (TXAA). You can double check this by going up to Show and un-check Anti-Aliasing in the drop down and the white line should disappear.
You can also add a unbound Post Process Volume and under Misc. >> check AA Method and switch to FXAA and the white lines should go away.
Hey AttemptD -
Check the Anti-Aliasing to see if this is your problem and if not please upload your screenshots
Thank You Both -
Eric Ketchum
Yes, disabling TXAA solved this issue.
Would it be possible to fix this bug with TXAA, though? I would rather use TXAA than FXAA, due to its better overall quality (also reflections quality).
Speaking for myself, and AttemptD, disabling TXAA through post process worked. Thank you for helping us!
Nice!! Good job everyone!