tactical-shooter/docs/visuals-architecture.md

Phase 3 — Visuals & Performance Architecture

Scope

Art pass, baked lighting, performance profiling, LOD + occlusion culling for the competitive tactical shooter.

Dependency Chain (Kanban)

t_p3_artkit  (modular wall/floor kit + PBR materials 1K + art style guide)
    └── t_p3_lighting  (LightmapGI baked lighting + reflection probes)
           └── t_p3_profile  (perf budget + LOD + occlusion culling)

Art Style

• Valorant-direction, not AAA photorealistic
• Clean silhouettes, team-colored zones (CT/blue, T/red-orange)
• 1K PBR textures (base color, normal, roughness, metallic)
• CC0-licensed or custom-created assets

Lighting Strategy

• LightmapGI for all static geometry
• Reflection probes at corridor junctions and open areas
• No SDFGI or real-time GI
• Lightmap texel density: 4-8 per unit walls/floors, 8-16 for focal surfaces

Performance Budget

Metric	Target
Frame time	16ms (60fps)
GPU budget	8ms
CPU budget	6ms
Draw calls	1500-2000 per frame
VRAM	2GB texture pool
LOD0 tris/wall	500-2000

LOD Strategy

• 3 LOD levels per modular asset
• LOD1 at 15m (50% tris), LOD2 at 40m (25% tris), LOD3 at 80m
• Occlusion culling via OccluderInstance3D auto-generation

Reference Hardware

• GTX 1050 / RX 560 class GPU (or integrated graphics)
• Godot Forward+ renderer