MAYA DYNAMICS

                         MAYA DYNAMICS

Introduction

Dynamics is a branch of physics that describes how objects move. Dynamic animation uses rules of physics to simulate natural forces. You specify the actions you want the object to take, then let the software figure out how to animate the object.

Dynamic animation lets you create realistic motion that’s hard to achieve with traditional key frame animation. For instance, you can make effects such as tumbling dice, waving flags, and exploding fireworks.

Dynamic animation

Particle objects, soft bodies, and rigid bodies are dynamic objects. You typically animate the motion of dynamic objects with dynamic animation—fields, collisions, springs, emission, goals, or particle expressions.

Maya calculates dynamics from frame to frame. The position of an object in each frame is derived from the position in the previous frame. This differs from key frame animation, where the position of an object at any frame is derived from key values set at different frames in the animation. Because Maya handles dynamics differently than key frame animation, you must use different techniques to adjust playback.

Soft  bodies

You can recreate a geometric object as a flexible object called a soft body.

You can use various animation techniques to make the soft body bend, ripple, and bulge like soft objects in nature.

Rigid bodies

Rigid Bodies are solid objects that do not deform, and are used for most straightforward applications of dynamics. Rigid bodies come in two forms: Active

Rigid Bodies are influenced by forces in your scene as well as interactions with other rigid bodies.  However, they cannot be user-controlled in any significant way, other than their initial placement. Passive Rigid Bodies can influence active rigid bodies, but they themselves are not influenced by other bodies or forces in your scene.  They can also have user-controlled motion, such as through key frames.

Fluid effects

Maya Fluid Effects is a technology for realistically simulating and rendering fluid motion. Fluid Effects lets you create a wide variety of 2D and 3D atmospheric, pyrotechnic, space, and viscous liquid effects.

You can use the Fluid Effects solvers to simulate these effects, or you can use fluid animated textures for more unique, distinguishing effects.

Fluid Effects also includes an ocean shade  for creating realistic open water. You can float objects on the ocean surface and have those objects react to the motion of the water.

Particles

Particles are points that display as dots, streaks, spheres, blobby surfaces, or other items. You can animate the display and movement of particles with various techniques; for example, keys, expressions, and fields such as gravity.

Effects

Maya effects are built-in programs that make it easy for you to create complex animation effects such as smoke and fire. Each Maya effect offers many options and attributes for tuning the results.

Hair

A hair system is a collection of hair follicles. A NURBS or polygonal surface can have multiple hair systems on the same surface and one hair system can span multiple surfaces.

A hair follicle in human hair typically hosts one hair, whereas in Maya each hair follicle hosts a hair curve. The hair follicle controls the attributes and curves associated with a particular hair clump, and how the hairs attach to a NURBS or polygonal surface. The input to each follicle is a Start Position NURBS curve, a surface and a UV position to attach to.

Fur

Maya Fur is a component of Maya Unlimited that you use to create realistic, self-shadowing fur and short hair on multi-surface NURBS, polygonal and subdivision surface models. You can set fur attributes, such as color, width, length, baldness, opacity, scraggle, curl, and direction globally, or map them on a local basis.

Using Maya®Artisan™, you can paint most fur attributes directly onto the surface and actually comb the fur and make clumps.