Creating and Fine-Tuning Life-sized 3D Digital Humans: A Step-by-Step Guide
In this tutorial, we will delve into a step-by-step process of creating a life-sized 3D digital human and subsequently animating it, taking a closer look at a process initiated by an individual who successfully managed to render his wife’s photograph into an impactful 3D model using cutting-edge technology and software. The result is a vivid, life-sized animated model that provides an intense and profound impression, allowing an exploration of various applications and innovations in this domain.
STEP 1: INITIAL CREATION OF 3D DIGITAL HUMAN
Utilize the Stable Diffusion Web UI to generate a 3D digital human. A base facial photograph, in this case, the author’s wife’s, served as the foundational layer. Employ the Character Creator along with the Headshot plugin to automate the creation process.
STEP 2: REFINING THE 3D MODEL
Once the initial 3D model is constructed, begin the refinement process by adjusting any unnatural aspects observed during the facial animation samples. Detailed fine-tuning of various facial features is crucial. Compare the model to actual photographs and meticulously refine each component, including the eyes, nose, and teeth.
STEP 3: DETAILED ADJUSTMENTS WITH HEADSHOT
For detailed adjustments and settings of facial shapes, the Headshot plugin proves more versatile than the Character Creator. Manipulate various parameters to enhance the resemblance to the real person. Adjust settings representing different facial shapes such as oval, thin, and thick to obtain a more accurate representation.
STEP 4: LIFE-SIZED ANIMATION PRODUCTION
Transition to the animation phase by focusing on creating life-sized animations. Utilize available ultra-wide displays, and employ the Character Creator for rendering and creating animations. Due to vertical limit constraints, the resolution for animation needs to be set at 540×1920 pixels.
STEP 5: DISPLAYING THE ANIMATION
Subsequently, project the created animation onto a vertical display in a living area, using a compatible mini PC. Even at non-full resolutions, the display should not have noticeable discomfort or jagged edges, ensuring a powerful, clear impact when viewed closely.
STEP 6: ACHIEVING VIVID PROJECTIONS
Drawing parallels with past projections, such as those in Hatsune Miku’s performances, the current technology employing solid displays offers more vivid and clear images. The advancements in 3D models offer superior real-time control, including lip-sync with audio and motion capture, surpassing the capabilities of generated AI.
STEP 7: EXPLORATION AND APPLICATIONS
Reflect on the potential innovations and applications achievable with the 3D model, including full-body projections and interaction with AI-generated images. Integration with game engines like Unity and Unreal Engine can potentially lead to the creation of models capable of moving, talking, and singing in a virtual world, with platforms like Apple Vision Pro and Meta Quest 3 serving as potential hosts for these innovations.
CONCLUSION:
By following this structured workflow, individuals can explore the uncharted territories of creating life-sized 3D digital humans. The combination of various technologies and platforms can lead to a multitude of applications and innovations in the field of 3D modeling and animation, opening the door to a myriad of possibilities in digital human interaction and representation. The process signifies not just a realization of a conceptual dream but also a stepping stone into continuous exploration and development in this expansive domain.