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In 3ds Max 2011 Essential Training, author Aaron F. Ross demonstrates how to use this top-tier application for digital content creation, widely used in diverse industries such as architecture, industrial design, motion pictures, games and virtual worlds. This course covers modeling with polygons, curves, and subdivision surfaces, defining surface properties with materials and maps, setting up cameras and lights, animating objects, and final output rendering. Exercise files accompany the course.
I've got some basic particle parameters working and it's looking kind of interesting. But what I'd like to happen actually is that these particles obey gravity. I want them to actually fall and hit the ground. So I want to create a Gravity Space Warp or a Gravity Force. So in 3ds Max there is this concept of the Space Warp. And just as the name implies, you're able to deviate the behavior of objects in space. So I'm going to create a Space Warp. In my Create panel there is a section for Space Warps. It looks like a little wave, and I will activate that.
The default is Forces and Forces are used to affect dynamic objects such as Particle Systems. There are other types of Space Warps as you'll see, for example, modifiers that can affect objects based upon distance and so on. The only ones we're going to worry about right now are the so called Forces and the Deflectors. So in Forces you'll see Gravity. So I'll click on Gravity and then just click anywhere in my view to make the Gravity icon. The position of the Gravity icon doesn't really matter. Once I've created it, I'll right-click and I've finished creating my Gravity, and you'll see it's pulling downward and that's what I want.
So Gravity is in the scene here currently, but the particles are not bound to the Gravity Force just yet. So in addition to creating the Gravity, I'm also going to need to connect the particle system to the Gravity, and that is done through a button on the main toolbar up here which is called Bind to Space Warp. So you'll see its right next door to these Link buttons because it has a kind of analogous purpose. It's connecting one thing to another. So I'll activate Bind to Space Warp and I'll go over here to my PArray icon and click-and-hold my mouse, and drag over to the Gravity icon and release.
Now I've got Gravity affecting the particles. I will rewind and play this back. You'll see Gravity is very strong currently. They are actually just really shooting downward, rewind. Go back to my Gravity Space Warp, back to my Select tool, and in the Modify panel I can increase or decrease the amount of Gravity. So it's just got some default value. It's not based upon any kind of real- world metric or anything, so I can type in whatever value I want.
So if I set a value of let's say 0.1 and play this back, this is more like what I was hoping to achieve here. Gravity is a lot less intense here. Maybe I'll make it a little bit more, maybe like 0.3 or so. Good! So now I've got Gravity affecting the particles.
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