Join Andy Needham for an in-depth discussion in this video Freezing particles, part of X-Particles 3 for Cinema 4D Essential Training.
- The Freeze Tag is relatively simple to understand and you can certainly have some fun with it. Let's take a look at the following example. We have some particles being emitted and they're being affected by a turbulence modifier. In the Emitter display settings, I've chosen to color the dots using a gradient in the speed parameter. We also have a sweeping camera move moving past and then through our particles. Because the Freeze Tag act sometime, I thought it might be cool to create a sort of bullet time effect.
So I'm going to pause the playback and right-click on the Emitter and choose the Freeze Tag from the X-Particles Tag menu. The Tag Properties are fairly straightforward. We can choose when to freeze the particles and when to unfreeze them. Let's leave them both unchecked for now and we'll play back our animation and see when a good point to freeze the particles would be. So I'd like to freeze the action at around frame 40 so I'm going to put in 40 here and we'll unfreeze frame 100.
We'll rewind and play and see what we've got. So the particles are being frozen and then we're going to rotate around them and then zoom through them afterwards, but I've noticed something that I don't really like the look of over here is these green particles that are being generated. This is because the Emitter is still creating particles when the action's frozen so to fix this, I can stop the particles from emitting before the action is frozen.
I'll go into the Emitter's setting in the Emission tab and choose to end the emission frame 39. Let's look through our camera again. And we've eliminated that visual problem. We can also do this with a question and action setup which I'll show you also. Just put this back to frame 59 and restore the problem. In our Questions tab, we'll add a question and we want to check whether the particle age equals frame 39.
If that's true, we can add an action. In the Action Tag we want to use is in the Object Actions and what we actually want is this Change Emitter action. We don't want the Emitter to emit new particles at that point so uncheck the box, rewind and press play and now we have the result we were looking for. So that was a quick look at how to use the Freeze Tag to create a bullet time effect.
- Working with the Emitter tabs
- Adjusting particles with modifiers
- Creating visible particles
- Using sprites
- Colliding, freezing, and lighting particles
- Caching in X-Particles
- Applying constraints
- Adjusting materials settings
- Sculpting particles
- Saving and loading presets