3D Production Pipeline, Continued 2

Animation

The rigged 3D model is now brought to life. The most common method of animation is key-framing. This involves an action starting at key-frame A and ending at key-frame B using a timeline; for example, if you wanted to have a cloud move across the sky, key-frame A would be the cloud at its starting position and key-frame B would be the cloud at the end position. The animation software fills in the middle section, which can be edited such as the time taken for the cloud to move. This technique can be used for many different actions from facial expressions to explosions. Many individual key-frames can be used simultaneously to produce a complete scene by layering them together.

rabbit walk via 3d-animated-gif.com.au.gif

Rabbit Walk gif obtained 6/3/16, via http://3d-animated-gif.blogspot.com.au/2011_01_01_archive.html

References:

Boudon, Grant. “How Does A 3D Production Pipeline Work”. Digital-Tutors Blog. N.p., 2013. Web. 6 Mar. 2016.

Wiesen, G. “What Is 3D Computer Animation?” wiseGEEK. N.p., 2016. Web. 6 Mar. 2016.

 

Lighting

Lighting is crucial to create mood and realism within a digital 3D scene. It is implemented through various lights such as key light, point light, fill light, and rim light. Mood is created through the intensity, source and colours of the light, for example, a full moon dimly lights up a forest trail in a blue hue giving the scene an eerie feel. Lighting is also affected by the texture and material of the surfaces it interacts with.

watermarked-AV_3-300x222

Image accessed on 6/3/16 from: https://austinvisuals.com/how-2d-and-3d-animation-is-made-at-an-animation-studio-part-4/

References:

Franklin, Curt. “How 3-D Graphics Work”. HowStuffWorks. N.p., 2000. Web. 6 Mar. 2016.

“How 2D And 3D Animation Is Made At An Animation Studio – Part 4 | Austin Visuals”. Austinvisuals.com. N.p., 2013. Web. 6 Mar. 2016.

 

Rendering

 

Rendering is the translation of a shot from a mathematical model of vertices and polygons in a 3D space to a finalized 2D picture by the render engine. The incorporation of layout, shapes, textures, and lighting information establish the colour of each pixel in the final picture. This process can take an immense amount of time.

Best_3d_Architectural_Visualization_3.jpg

Image found on 6/3/16 from: http://www.archello.com/en/project/stunning-architectural-3d-rendering-predsolutions

Video link: http://www.digitaltutors.com/tutorial/718-CG101-Rendering

References:

Slick, Justin. “What Is Rendering?”. About.com Tech. N.p., 2014. Web. 6 Mar. 2016.

 

Compositing

This is the final stage of the 3D production pipeline where all the pieces are put together. This stage is crucial for modern CG animation combined with live action filming where the layers of animated objects and characters, lighting and visual effects, and film footage are fused to create the final picture. Types of compositing include node-based, layer-based and deep compositing

 

 

compositing.jpg

Video Link: https://www.fxguide.com/featured/the-art-of-deep-compositing/

References:

“The Foundry :: About Digital Compositing”. Thefoundry.co.uk. Web. 6 Mar. 2016.

3D Production Pipeline, Continued

UV Mapping

UV canvas is a 2D representation of a 3D model that projects textures on top of meshes. It uses U and V axes, equal to X and Y to plot where the pieces go. A 3D mesh is unwrapped to form a 2D net, then placed onto the UV canvas. UV mapping is like skinning the model and cutting it into pieces so that they can all be laid out on a flat surface, ready for texturing.

UV Mapping.jpg

Image accessed on 3/3/16, found at: http://www.renderspirit.com/wireframe-render-tutorial/

Video link: The Basics of UV Mapping

References:

YouTube,. “The Basics Of UV Mapping”. N.p., 2009. Web. 3 Mar. 2016.

Knowledge.autodesk.com,. “Introduction To UV Mapping | Maya | Autodesk Knowledge Network”. N.p., 2014. Web. 3 Mar. 2016.

 

Texturing and Shaders

Textures and shaders are 2D digital maps that make up how a digital 3D model looks. Textures are image files that cover a model’s surface to create colour, texture and patterns, using the UV map of the model. Textures can be created using digital painting software like Photoshop or by using photographs to fill the UV map. Roughness, highlights and translucent effects can be created using multiple texturing maps such as diffuse, specular and bump maps.

Shaders control how the surface of the model interacts with light, without which, the model would be nothing more than invisible points in a 3D plane. Different shaders can be used to allow different types of surfaces to appear realistic.UV Mapping httpwww.unwrap3d.com-u3d-index.aspx.jpg

Image from : http://www.unwrap3d.com/u3d/index.aspx

References:

 

Rigging

Rigging converts the 3D model for a stagnant statue into a maneuverable figure. The model is rigged with mechanisms that can be controlled and programmed to allow the model to perform actions. Rigging methods allowing the application of these actions include: joint rigging, facial rigging, forward and inverse kinematics, blend shapes, deformers, control curves, skinning, and weight painting. Joint rigging enables riggers to create a “skeleton” for the model, transforming it into a puppet.

References:
Masters, M. (2014). Key 3D Rigging Terminology to Get You Moving. Digital-Tutors Blog. Retrieved 3 March 2016, from http://blog.digitaltutors.com/key-rigging-terms-get-moving/
Slick, J. (2014). How Are 3D Models Prepared for Animation?. About.com Tech. Retrieved 3 March 2016, from http://3d.about.com/od/Creating-3D-The-CG-Pipeline/a/What-Is-Rigging.htm