The Making of “Alpha Point”—UE5 Technical Demo
summary
Alpha Point is a UE5 Xbox Series X/S tech demo that actually ships numbers: the scene hits 100+ million triangles, Nanite rendering stays Nanite ~2ms at 1080p, Temporal Super Resolution upscaling 1080→4K runs about TSR 1080→4K ~2.2 ms, Lumen tuned to ~3.6 ms with a custom cvar set, Virtual Shadow Maps drop from 6.3 ms to ~3 ms by removing large non‑nanite casters, total system averages ~46 FPS overall on Series X with full features. Pain points: DCC tools above ~1M tris, UV/8K painting, and groom costs (hair ~3.25M tris, groom shot ~8.7 ms). They ship editor tools: paintable volumetric fog, tile‑mesh Blueprint, a texture pipeline, and a custom G‑Buffer for Niagara; most features work but need engine and content‑tool optimizations.
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chapters (23)
- 0:00Intro
- 1:00UNREAL & GEARS
- 9:30TECH STATS
- 10:05TECH JOURNEY
- 12:44HIGH POLYGON MODELING ISSUES
- 14:33VINES AND FOLIAGE
- 16:42MATERIAL SETUP NEW BASE MATERIAL
- 18:14TEXTURE GENERATION
- 20:15PAINTABLE VOLUME FOG
- 21:34LAYERED MATERIALS Can no longer vertex part material layers
- 23:34TEXTURES
- 26:26TILING MESH BLUEPRINT
- 31:55LUMEN PERFORMANCE
- 33:57LUMEN REFLECTIONS
- 35:48VIRTUAL SHADOW MAPS QUALITY
- 36:42VIRTUAL SHADOW MAPS PERFORMANCE Initially had some concerning performance results
- 37:59NANITE PERFORMANCE
- 40:23CUSTOM VEX BUFFER
- 42:15PERF UI WIDGET
- 43:54XBOX SERIES S PERFORMANCE
- 46:46ALPHA POINT LEARNINGS
- 50:56CHARACTER STATS
- 53:51CHARACTER PERFORMANCE
