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3D Mesh Processing and Character Animation focusses specifically on topics that are important in three-dimensional modelling, surface design and real-time character animation. It provides an in-depth coverage of data structures and popular methods used in geometry processing, keyframe and inverse kinematics animations and shader based processing of mesh objects. It also introduces two powerful and versatile libraries, OpenMesh and Assimp, and demonstrates their usefulness through implementations of a wide range of algorithms in mesh processing and character animation respectively. This Textbook is written for students at an advanced undergraduate or postgraduate level who are interested in the study and development of graphics algorithms for three-dimensional mesh modeling and analysis, and animations of rigged character models. The key topics covered in the book are mesh data structures for processing adjacency queries, simplification and subdivision algorithms, mesh parameterization methods, 3D mesh morphing, skeletal animation, motion capture data, scene graphs, quaternions, inverse kinematics algorithms, OpenGL-4 tessellation and geometry shaders, geometry processing and terrain rendering.
Creating moving camera character animations in 3D is a multi-faceted computer graphics and computer vision problem that requires a formal representation of the moving camera, and efficient algorithms to help author manage and render the multitude of character poses required for the animation. This well-researched book introduces view-dependent character animation, covering all the relevant background work. Numerous example animations are offered to explain and illustrate this versatile technique.
The realistic generation of virtual doubles of real-world actors has been the focus of computer graphics research for many years. However, some problems still remain unsolved: it is still time-consuming to generate character animations using the traditional skeleton-based pipeline, passive performance capture of human actors wearing arbitrary everyday apparel is still challenging, and until now, there is only a limited amount of techniques for processing and modifying mesh animations, in contrast to the huge amount of skeleton-based techniques. In this thesis, we propose algorithmic solutions to each of these problems. First, two efficient mesh-based alternatives to simplify the overall character animation process are proposed. Although abandoning the concept of a kinematic skeleton, both techniques can be directly integrated in the traditional pipeline, generating animations with realistic body deformations. Thereafter, three passive performance capture methods are presented which employ a deformable model as underlying scene representation. The techniques are able to jointly reconstruct spatio-temporally coherent time-varying geometry, motion, and textural surface appearance of subjects wearing loose and everyday apparel. Moreover, the acquired high-quality reconstructions enable us to render realistic 3D Videos. At the end, two novel algorithms for processing mesh animations are described. The first one enables the fully-automatic conversion of a mesh animation into a skeletonbased animation and the second one automatically converts a mesh animation into an animation collage, a new artistic style for rendering animations. The methods described in the thesis can be regarded as solutions to specific problems or important building blocks for a larger application. As a whole, they form a powerful system to accurately capture, manipulate and realistically render realworld human performances, exceeding the capabilities of many related capture techniques. By this means, we are able to correctly capture the motion, the timevarying details and the texture information of a real human performing, and transform it into a fully-rigged character animation, that can be directly used by an animator, or use it to realistically display the actor from arbitrary viewpoints.
Let this in-depth professional book be your guide to Blender, the powerful open-source 3D modeling and animation software that will bring your ideas to life. Using clear step-by-step instruction and pages of real-world examples, expert animator Tony Mullen walks you through the complexities of modeling and animating, with a special focus on characters. From Blender basics to creating facial expressions and emotion to rendering, you’ll jump right into the process and learn valuable techniques that will transform your movies. Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.
3D Studio MAX 3 Professional Animation is the only book that take you extensively through the 3D Studio MAX 3 animation process, showing you the techniques that professional animators use to create everything from simple animated particle effects to complex character animation for Web sites, video, film, and other multimedia formats. Written by a group of top-flight 3D animation professionals, this book features the real deal--real-world applications and advanced tutorials: make bipedal, quadra-pedal, and multipedal characters walk; use Cstudio's Biped and Physique; build and animate a realistic human skeleton using MAX Bones IK; create complex scripting with MAXscript to enhance MAX's capabilities; produce muscle-based, multi-layered facial expressions and lip syncs; create deformable objects and fine-tune them with space warps; display and edit trajectories; and animate cameras, lights, and atmosphere.
3D Modeling and Animation: Synthesis and Analysis Techniques for the Human Body covers the areas of modeling and animating 3D synthetic human models at a level that is useful to students, researchers, software developers and content generators. The reader will be presented with the latest, research-level, techniques for the analysis and synthesis of still and moving human bodies, with particular emphasis in facial and gesture characteristics.
In the field of computer animation the process of creating an animated character is usually a long and tedious task. An animation character is usually efined by a 3D mesh (a set of triangles in the space) that gives its external appearance or shape to the character. It also used to have an inner structure, the skeleton. When a skeleton is associated to a character mesh, this association is called skeleton binding, and a skeleton bound to a character mesh is an animation rig. Rigging from scratch a character can be a very boring process. The definition and creation of a centered skeleton together with the 'painting', by an artist,of the influence parameters between the skeleton and the mesh (the skinning) s the most demanding part to achieve an acceptable behavior for a character. This rigging process can be simplified and accelerated using an automatic rigging method. Automatic rigging methods consist in taking as input a 3D mesh, generate a skeleton based in the shape of the original model, bound the input mesh to the generated skeleton, and finally to compute a set of parameters based in a chosen skinning method. The main objective of this thesis is to generate a method for rigging a 3D arbitrary model with minimum user interaction. This can be useful to people without experience in the animation field or to experienced people to accelerate the rigging process from days to hours or minutes depending the needed quality. Having in mind this situation we have designed our method as a set of tools that can be applied to general input models defined by an artist. The contributions made in the development of this thesis can be summarized as: · Generation of an animation Rig: Having an arbitrary closed mesh we have implemented a thinning method to create first an unrefined geometry skeleton that captures the topology and pose of the input character. Using this geometric skeleton as starting point we use a refining method that creates an adjusted logic skeleton based in a template, or may be defined by the user, that is compatible with the current animation formats. The output logic skeleton is specific for each character, and it is bounded to the input mesh to create an animation rig. · Skinning: Having defined an animation rig for an arbitrary mesh we have developed an improved skinning method; this method is based on the Linear Blend Skinning(LBS) algorithm. Our contributions in the skinning field can be sub-divided in: – We propose a segmentation method that works as the core element in a weight assigning algorithm and a skinning lgorithm, we also have developed an automatic algorithm to compute the skin weights of the LBS Skinning of a rigged polygonal mesh. – Our proposed skinning algorithm uses as base the features of the LBS Skinning. The main purpose of the developed algorithm is to solve the well-known "candy wrap" artifact; that produces a substantial loss of volume when a link of an animation skeleton is rotated over its own axis. We have compared our results with the most important methods in the skinning field, such as Dual Quaternion Skinning (DQS) and LBS, achieving a better performance over DQS and an improvement in quality over LBS. · Animation tools: We have developed a set of Autodesk Maya commands that works together as rig tool, using our previous proposed methods. · Animation loader: Moreover, an animation loader tool has been implemented, that allows the user to load animations from a skeleton with different structure to a rigged 3D model. The contributions previously described has been published in 3 research papers, the first two were presented in international congresses and the third one was acepted for its publication in an JCR indexed journal.
Get to grips with the base workflow and create your own cinematic scenes in UE5 by learning to develop the main elements, animate, and combine them into a complete rendered movie scene with the help of key images printed in color Key Features Perform your entire rigging and animation workflow inside Unreal Engine 5 using Control Rig tools Create hand-keyed animations and clean up motion capture natively in Unreal Engine Learn the basics of creating 3D assets and customizing a MetaHuman for your movie needs Book DescriptionUnreal Engine 5 (UE5) offers beginners and seasoned professionals the ability to create detailed movie scenes with realistic human characters using MetaHuman and combine it with custom props and environments. It also comes with built-in industry standard animation tools to develop such scenes in a fraction of the time compared to old methods. This book takes you through the entire 3D movie production pipeline using free (open - source) software. By following the step-by-step, beginner-friendly tutorials in this book, you'll learn how to create your own custom 3D assets in Blender and texture these 3D assets in Quixel Mixer. Next, you'll take these completed 3D assets into Unreal Engine 5 and use them to build a virtual 3D movie set for your 3D movie. You'll also populate your 3D movie set by using Quixel MegaScans assets and create and customize your own photorealistic human character using MetaHuman Creator and UE5. As you advance, you'll discover how to rig, skin, and animate these 3D assets and characters using Blender and UE5's new Control Rig. Finally, you'll explore the process of setting up your movie cameras and animation sequences and rendering your 3D movie using UE5's Sequencer. By the end of this Unreal Engine book, you'll have learned how to combine different elements in UE5 to make your own movies and cinematics.What you will learn Create, customize, and use a MetaHuman in a cinematic scene in UE5 Model and texture custom 3D assets for your movie using Blender and Quixel Mixer Use Nanite with Quixel Megascans assets to build 3D movie sets Rig and animate characters and 3D assets inside UE5 using Control Rig tools Combine your 3D assets in Sequencer, include the final effects, and render out a high-quality movie scene Light your 3D movie set using Lumen lighting in UE5 Who this book is forThis book is for beginners to Unreal Engine or 3D animation and art in general who want to learn the entire process of creating 3D movies with Unreal Engine 5. Experienced 3D artists and animators new to UE5 will also find this book invaluable as it covers cutting-edge techniques for making real-time 3D movies using Unreal Engine, Blender, Quixel Mixer, and Quixel Bridge. Although prior experience with 3D software is not necessary, it will be helpful in understanding the concepts more easily.
Expand your animation toolkit and remain competitive in the industry with this leading resource for 2D and 3D character animation techniques. Apply the industry's best practices to your own workflows and develop 2D, 3D and hybrid characters with ease. With side by side comparisons of 2D and 3D character design, improve your character animation and master traditional principles and processes including weight and balance, timing and walks. Develop characters inspired by humans, birds, fish, snakes and four legged animals. Breathe life into your character and develop a characters personality with chapters on acting, voice-synching and facial expressions. Expertly integrate core animation techniques with your software of choice featuring step-by-step tutorials, highlighting 3ds Max, Maya and Blender workflows. Adapt the tips, tricks and techniques for unique projects like character design for rotoscoping and motion capture. Advance beyond the fundamentals of 2D and 3D character animation with the companion website which includes short demonstration movies, 2D and 3D exercises and fully rigged character models.
This book brings together several advanced topics in computer graphics that are important in the areas of game development, three-dimensional animation and real-time rendering. The book is designed for final-year undergraduate or first-year graduate students, who are already familiar with the basic concepts in computer graphics and programming. It aims to provide a good foundation of advanced methods such as skeletal animation, quaternions, mesh processing and collision detection. These and other methods covered in the book are fundamental to the development of algorithms used in commercial applications as well as research.