Capturing an Instant in 3D - iris 'Action Scan'

2024年8月26日 00:47

Within the measurement range of 3D scanning, we can capture the 'action moment' of a person.
It's possible to create crisp 3D scans that preserve the dynamic feeling of clothing and muscles. These 3D assets, capturing 'moments of action', can be utilized in CGI for super slow-motion expressions and bullet-time FX without the need for rig setup.

'iris' has scanned 'instants' of many actors' performances, which have been used in various productions. The photogrammetry system at the photogrammetry studio 'iris' offers overwhelmingly high resolution compared to recent volumetric methods.

In recent years, it has become best practice to choose 3D scanning techniques based on the desired expression method and purpose."

The dynamic expression that captures the 'texture of fabric' in iris scans often makes even our staff exclaim 'Beautiful!' anew.

Recently, we've seen an increase in requests for iris's high-resolution 3D scans for use as a basis for art pieces and stage design (CNC styrofoam cutting).
The crisp, detailed representation of fabric textures is also ideal for large-scale output.

It's ideal for 'unstable poses' that can't be held still. Even unstable poses that tend to shake, like J●J● poses, can be scanned in an instant, resulting in sharp, blur-free outcomes.

[Note]
For a simple CGI super slow-motion effect, apply slow 'noise deformation' or 'lattice deformation' to the 3D scanned asset in your CG application. By applying just a slight deformation, you can easily create a super slow-motion feel. (Although this is a fake effect) Adding extremely simple bones partially (to feet or arms) and giving them slight movement can also accommodate flexible expressions.

The standard approach of retopologizing from an A-pose, then adding bones and rig setup, and finally posing as desired is common, but it significantly diminishes the dynamic feeling of the subject itself. (This can be somewhat mitigated by investing time in cloth simulation using Marvelous Designer, UE cloth simulation, spring bones, etc.)

For pre-rendered projects, we recommend 3D scanning 'the poses needed for the main production' in a state close to 'straight out of camera'. If there's limited production time and the camera uses a 'wide angle shot', there's a high possibility that the scans can be used directly in the main CGI production.
And ,we always perform a 3dscan of the "A-pose," which allows for free editing later.