RFGCA pushes full-body relighting toward realtime

This is one of the clearest signs that codec avatars are moving from “great demo” to “near-deployable graphics tech” for telepresence and immersive apps.

• –Replacing spherical harmonics-heavy relighting with learnable zonal harmonics improves rotational efficiency under articulation-heavy body motion.
• –A dedicated shadow network handles non-local self-occlusion effects between body parts, which is a major failure point in many avatar pipelines.
• –Deferred shading for specular transport helps preserve high-frequency cues like highlights and eye glints that sell realism.
• –The project is positioned as a SIGGRAPH 2025 conference-track paper, signaling strong technical credibility in graphics research circles.