I’m working on a reasonably layered particle emitter and I’m hitting a wall.
I want the particles to scale up into existence and then scale down on the way out. Some of the particles do this perfectly and some flash on and then flash off. I’m stumped.
This all looks fine as far as I can tell.
Perhaps there is something in the material’s opacity control, or something else inside cascade messing with the alpha/opacity of the materials.
additionally, just a small tip: if you want them to ease in/out a bit better set the interp mode to auto or auto clamped.
Hey Luos, thanks for the reply. I had a Color Over Life module that I thought might be doing exactly what you said, but even once I got rid of it, still the flicking on and off of some particles, so odd! That’s the only thing I can imagine is controlling alpha or opacity on it.
And thank you for the note about interp modes. I couldn’t see a difference in my case between the auto or auto clamped, but both look better than the linear.
Hey all, I’m still struggling with this, anyone have any ideas? I’m not really able to progress with my project until I can solve this silly little problem!
I just to check, bumped the lifetime to 5 instead, still ones disappearing and reappearing randomly amid the smooth growing and shrinking ones. It’s so weird.
I just tested SubUVs on my particle system, it should just work with the Size By Life module. You might want to add the screenshot with your modules <3
Somehow lost this answer, so sry I guess <3. When you click on the Particle Module “Required”, go to SubUV and set the SubImages Horizontal/ Vertical and set the Interpolation Method to Linear. Also might want to check “ScaleUV”.
Hey IGorilla, thanks for your response. In regards to your thoughts:
The “cut off” that’s happening seems to be either at the start or end of the particle life, so it’ll “blink” on, move around growing, and then “blink off” rather than growing and shrinking out in and out of existence, while others do exactly what I want.
Don’t have any rotation set, so I don’t think that’s it.
Could be something to do with my SubUVs, but wouldn’t that effect all of them?
Without Size Over Life, the particles all blink on and off, so hard to tell if whatever is causing the problem is still there.
Ah! Possible mini-breakthrough brought on by your rotation question IGorilla. Switched off Orbit and I think it stopped happening (even though I lose my beautiful particle movement)! What is going on in that module?
I would set your last point in the SizeByLife module to In Val: 1 and every Out Val: 0_0_0
Also, I just followed this tutorial and everything seems to work. tldr; Add another Particle Module called “SubImage Index” and in the module, set the 2nd Point to 64 if my eyes are not lying to me.
does your particle maybe adjust its rotation to the particles velocity? think its called PSA Velocity or something, not sure… maybe try some settings here