In this tutorial we learn to setup diverse types of particles systems, attach it to Glu3D and deflectors, also a special link of geometry. All this, in a nice scene of a dancing teapot that get dirt!. The particularity of Glu3D its the ability of use liquid simulations with external particles using his PWrapper plugin. This mean that we don't use the internal calcules of Glu3D, but the "geometry creator" with standard particles systems.
The results of this mix it's really interesting and in some cases perfectly valid replacing the real liquids simulation created by Glu3D. Nevertheless, for precise and real liquids simulations it's better to use Glu3D.
Glu3D it's a advanced fluid system created by 3DAliens. You can download a demo version from www.3daliens.com
We start from a very simple base scene, a ground plane and our classic teapot. Once suitably illuminated the scene (I`m choose Vray), we proceed to animate the teapot. For that, we use two modifiers: BEND, for the side movements, and STRETCH for the "chewing gum" movements.
The movements that we will realize will be rhythmic, as if it was dancing. In my case first I animated the Bend Modifier, and later, over this first animation, I have done the second movement. Here you feel free to animate the teapot as you like using different modifiers. The chances here are that the teapot moves. In my case, the animation is 200 frames length.
Procedure 1 - Dirt-o-Teapot
Let's go first to dirt our teapot. We don't want to animate the dirtying process, because the teapot remains dirty from the beginning. This will be useful too for simulating kind of mud over different surfaces, changing the materials. Here the imagination is the one that gives the orders.
The first is create a particle system. I choose in this case Particle Flow, because it's more powerful that the Standard particles systems, and it allow us the effect that we want to do, otherwise will be costly to do.
So, we create a new Particle Flow event, and edit it so that generate the particles from the surface of the teapot, not moving and no creating newer particles. These are the settings from this particle system:
We moving by the Timeline, seeing that the particles still remain in the surface of the teapot, while this bend and stretch.
Now we create a Pwrapper system, that is part of the Glu3D pack. The Pwrapper system allow us create a geometry with the liquid or mud look, without using the Glu3D system. The procedure of this is very easy, only create the Pwrapper system and in the setup we point to the particle system (Particle Flow), and adjust the creation parameters of the mesh melting, resolution, size and so on. Finally, we move through the animation to see how the mesh created by Pwrapper is adapted with the movement of the teapot, set a "chocolate" look with the Material Editor and we are ready with our teapot.
Procedure 2 - The jet of liquid
Here comes the most complicated part of the tutorial, that is the jet of liquid. In this case, we don't use Glu3D because the calculation it's very intensive and in this case time is money :-). So, we use again Pwrapper, but before, we must to setup the particle system.
Instead of using Particle Flow, in this case we use a Standard particle system, PArray, that give us to use a geometry to emit particles. The reason of this is because the particles exit from the spout and we need this ovoid form.
So, first we create a Spline with the ovoid form of the spout, and position this into the spout, how you can see in the image. Convert to Editable Mesh: