Maya Tutorials/Further Information

Tutorials:

Basic Key Frames:

Within class tasks were given, helping everybody learn how to use certain areas of Maya. This “Object movement” video was my movement creation of a cube, cone and sphere, just learning the basics of using key frames. Going into window> settings/preferences> preferences, to set up the frame rate and other details.

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After doing all that within Maya I pressed the S key, in order to place key frames on the time slide, as you can see red lines appear on the slide, which are the set key frames. Moving my objects where I want them, pressing the S key to set  key frame at each changed location. After the movement was finished, I need to have a form of rotation with the animation, by typing in the channels below saying rotate, setting a number in the box giving it a degrees of rotation. Once a frame is set, the both turns red, as you can see below.

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To finish of my animation I added some lights, going to create>lights, I chose a couple of area lights, to highlight the whole environment. Going to the attribute editor with “control A” I opened up the lights settings to edit and tweak them to how I planned.

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A final touch I added colour textures to the polygons, using the hyper shade menu.

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Bouncing Ball:

Another little animation I created, just other a bouncing ball. In class we was learning about psychics of bouncing balls, as that slightly start to stretch out slightly vertically as it falls downwards, due to the impact it slightly stretches outwards horizontally. The stretch may increase depending on the ball material and speed the ball falls at. Within my animation using a basic sphere shaped polygon, using key frames, I animated the movement and stretching of the ball. Using the scale tool (bottom) to stretch the ball.

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A simple spotlight was added, just to make the sphere visible, no chosen texture was added as I just left the default texture on instead. I have gained in depth knowledge about physics and how they should be applied to certain movements.

 

Pillars:

This tutorial in class, we was just learning how to make a basic pillar. When the whole class started, I struggled quite a lot doing this simple task as I did not know how to use Maya software. I failed in the simple task, however after practising in using Maya, I gained further knowledge in using the software. Eventually progressing past the pillars and make a Egyptian looking building, I highly enjoyed doing this and find using most of Maya quite easy.

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Physics:

As producing accurate movement is the main key in creating an animation, Pixar think of typical physics in depth such as Kinetic energy, acceleration, air resistance, mass and spin, all depending of what time of object it is of course. Throughout college one of our task was to animate a bouncing ball, while as a class we were discussing different types, beach ball, football and bowling ball, as each individuality have their own gravitational physical properties.

Kinetic energy- This energy is product of gravitational potential energy, which is energy of an object that is possessed by it, due to its placement within a gravitational field. For example when a ball drops at a height the energy is transformed into kinetic energy slowly increasing the speed the ball is dropping at, causing a reaction with the kinetic energy as it hits the ground making frictional energy between the ball and the ground, due to the impact as the ball hits the ground. The acceleration of the dropped ball is decreased when bouncing upwards, therefore the velocity upwards is less great due to the kinetic energy being transferred back into gravitational potential energy.

Rotational spin- A ball dropping can spin from many reasons, such as hand movement from the drop, air collision, friction between a surface and of a ball and many others. Most likely through connection of a surface, a balls rotational spin occurs ones its made impact with a surface, depending on the ball height from dropping point, weight and size effects the outcome. The kinetic energy will be much greater depending on the downwards velocity speed that the ball connects with the surface floor, causing a frictional resistance that can make the ball have a rotational movement.

Acceleration- Acceleration of an object can vary depending on the object itself, the acceleration of an object increases as the fall  gap is widened. “The rate of change in the velocity of an object per unit time is referred as acceleration and the kind of motion is known as accelerated motion”. – http://www.web-formulas.com/Physics_Formulas/Velocity-and-Acceleration.aspx

Equation: average~speed = frac{distance~moved}{time~taken}

Air resistance- Aerodynamic drag which is air resistance/air force. This majorly effects the fall of an object, depending on situations, for example there are 2 balls, one with a hole and one without. They’re the same mass, however as the wind impacts the balls while falling, the ball without a hole is most likely to be pushed in the direction the wind is blowing as it a larger surface to impact. Causing a slight speed increase and air resistance due to the ball falling, forming frictional force which can possibly generate heat as the ball falls for a long period of time.

Mass- A light object is going to fall slower compared to a heavy object, due to their mass differences (volume).

 

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