View Full Version : Particles won't render? AVFX3

12 December 2010, 09:47 PM

I have a can where I want some of my particles to run down the surface and other to stay at their birthpoint.

Now I think I am doing everything right, but my running particles won't render.

Why is that?

(From Allan Mckays tutorials from AVFX 3.)

12 December 2010, 10:35 PM
they won't render cause they don't have a shape, try putting the shape in the very first even with your render and material.

12 December 2010, 10:49 PM
they won't render cause they don't have a shape, try putting the shape in the very first even with your render and material.

Thanks for the reply.

I tried doing that and that doesn't do anything. It's only the spawn that doesn't render. The particle it spawns from renders, but the spawn doesn't even render when I put a shape operater in all of my events...


12 December 2010, 11:32 PM
I think it's the "break off when exceeds" parameter that does it in event 002 (the lock/bond test.)

I'll send the file if anyone wants to look at it..?

12 December 2010, 04:49 PM
is your viewport amount the same as the render amount?

12 December 2010, 09:46 PM
Yes it is/was.

I solved the problem by adding an age test to Event 002, uncheck "break off when exceeds" in the lock/bond in the same event and link the age test to event 003.

Now the particles render...

It works, but I don't understand why :shrug:

12 December 2010, 03:59 AM
Couple quick things I do to check a flow, the first is turn on Option Menu->Track Update->Particle Count, so you can watch the particles travel through the flow in the particle view, this is particularly helpful when, as in your case the particles aren't rendering, since they haven't made it to that event yet.

Also if possible, dump the particle count to like 10 particles (or the least amount possible that particles travel through all of your events), select the Test you want to adjust in the particle view, start the playback, and start adjusting the Test Operator params the satisfy the test conditions. This gives you an idea of your min/max values to satisfy the test.

The default "break off" values take quite a bit of force to break particle binds, you can also lower the Position Force percentage to get the particle to release easier as well. You setup looks like it should work, I don't know how much force you are applying though.

Of course an Age Test works just fine too :)

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12 December 2010, 03:59 AM
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