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Thursday, January 28, 2010

How To Take Advantage Of Custom 3d Models For 3d Face Modeling

By Emily Evans

Custom 3d models give you the advantage of being able to go through the process of face 3d modeling in the most cost and time effective way. Also, if you want facial movement or further manipulation, then it is best to use the services of expert 3d modeling and rendering artists for face 3d modeling. In addition to using custom 3d models, you can add other features to the 3d face such as particular emotions, expressions, the hair, eyebrow and other such things, such as deep creases of the face.

You can save time if you download a stock 3d model for your face 3d modeling and animation. Using this ready made 3d model can help you during your face 3d modeling process. However, keep in mind that when you utilize one that has that is already made you will more than likely have to modify it so that it can be ultimately look real and unique.

It is not uncommon to reduce modeling time and lower production costs by getting a stock 3d model for the face 3d modeling and animation. Using a ready made 3d model can help during the face 3d modeling process. However, keep in mind that changes will be needed and these changes require particular skills to do so in a fast and cost effective way.

There are many advantages to using a customized 3d model especially when you start the face 3d modeling process including already getting a very realistic location for the eyes, eyebrows, face, mouth and any other proportions of the human body.

Let's me illustrate this with an example. When you need the licensing rights for a character, you will most likely need custom 3d models of characters. You can opt for getting a high quality one that is already made that is also highly realistic and may even include the necessary rigging or facial movements.

Keep in mind that to use this 3d face model character or change anything on it, you will need specialized rendering and 3d modeling skills in the course of the face 3d modeling in order for you to simply mesh it again, built it altogether or even display it so that it can be seen like a human face. The point is that regardless whether you start off with a stock or a custom 3d model, the reality is that a stock 3d model is not exclusive so you need to change it to suit your needs or the need to have an original face that nobody else is using in their projects.

In addition, most face 3d modeling nearly always involves further manipulation, particularly adding facial movements and emotions that bring any face or character to life. Put simply, you may often find that most custom 3d models of the human body need lots of the features that will be discussed below including; an accurate but lightweight version with very few polygons, human emotions, rigging, formats for game engines and virtual worlds, scene setup, post production processing, etc.

There are many techniques you can use to build custom 3d models of human faces. The 3d model can be referenced from a photo, video, clay, drawing or even a stock 3d model. Face 3d modeling involves using the points are used to create and customized to incorporate all of the facial details. Nowadays facial movements and expressions are mapped in connection with the structure and position of the eyes, nose, lips and eyebrows.

Often, the desired face is of an existing human, such as celebrity or political figure. When this is the case pictures or video can be used to aid in the creation of the basic shape and proportion of the face. Also these same picture or video can be analyzed to tweak the shapes and proportions of the face and to add the facial expressions. These facial expressions give any custom 3d model of the face a look that can be very realistic and almost as accurate as the existing human face. Then, the 3d modeler can use this realistic looking custom 3d model of the face and create stills or use it in animations, saving time and money during the 3d face modeling process.

For instance, as you go through the face 3d modeling process, you can expedite the process by capturing the human face using video. Then, you would use the location of the eye corners, nose tip and mouth corners together with specialized face recognition software to generate a highly realistic looking 3d face model. Then, you would use this output as the kick off point of your face 3d modeling and then you would add a range of poses, facial expressions and even additional features like audio and talking ability.

To achieve higher accuracy and a realistic human like appearance, you will need more facial points to go by and stronger equipment, which can become expensive. However, if you don't have this available another cheaper way to realize a very human look is to manipulate the custom 3d models yourself or get 3d modeling and rendering services to do this for you so that you can have input on how the finished face 3d model will looks throughout your face 3d modeling until you get the required look that you need.

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