Alright, I found a grenade that closely resembles the Half-Life 2 grenade, but it's missing one thing: The distinctive red trail found on the grenade. How would I re-create this in CC?

Adding an emitter to it maybe, And have the emitter emit a small red glow very quickly?
Hows that for fast answers.

Give the grenade an emitter, and make it emit pinned short lifetime particle.

Alright, I'll see what I can do.

Okay, it seems that the pixels aren't always going to stay together. Even at semi-low speeds, the grenades trails have pixels inbetween them, and the trails show while being held. Also, any way to make the trail have no gravity?

For no gravity:


For less pixel spacing, raise "ParticlesPerMinute" in the emitter code.

Actually, it would be pretty much impossible to make it a coherent trail
like the one you see in HL2. CC just can't do it with the current coding
options we have right now. I don't know how to explain it, but you'd probably
be better off not trying to do it.
A cheap compromise would be to make it emit small glows at a very high rate,
thus somewhat making them flow together, but this won't work well if the grenade
is tossed at high speeds.

TO make it the best hl2 greneade you'd also need that blipping sound it makes :p

It might still have the same particle buildup as purple's psyblade, but maybe it won't if you made a "launcher" similar to numgun's "grenade pack" in his solid snake mod.

EDIT: Sorry, I didn't read the other comments all the way through. It seems like you guys already knew what to do. Here's what the trail ends up looking like:


Shook's right. Unless you make the particlesperminute extremely high, CC can't render a coherent trail.

Something I've always wanted to try, but I don't know if anyone ever has, is this:

For most objects you have them set to auto-generate their constituent particles. But, what if you manually plotted them out like with hands and feet? Could you then manually define the pixels to have a trail, like with projectiles? With something small like a grenade, this might be easy to do. I just don't know if you can add trails that way.

Tried it. Unfortunately, it doesn't work. Trails only work on MOPixels.

He's talking about the individual atoms in the atomgroup. It'd probably work, but you'd have to have a really long trail, or else you wouldn't notice it. Also, trails for atoms/mopixels aren't as good, because they're solid colors, and don't really blend very well.

Yeah, I know. Like I said, I tried it and it didn't work. Trails only work on MOPixels.

Maybe you should look at the Crobo beta pack 2, the grenades fired by tat grenade launcher are as close as it gets.

Objection. Grif made a grenade launcher pack a while back that included a semi-coherent trail that matched the grenade's path more or less perfectly.

What about the laser cannon in the AAL pack? It stays together rather nicely.