Fixed daytime lighting and basic ambience for the DemoMap:
- Sun pitch -50 / yaw 120 (intensity 4, warm), sky light 2.6 with real-time
capture, sky atmosphere, height fog, and an unbound post-process volume with
fixed exposure (min = max brightness) so no shot washes out or crushes to
black depending on how much sky it frames.
- Root cause of the washed-out look was NOT the sun: Blender's flat diffuse
colours do not survive the FBX->Unreal import. Every site material arrived
white and the terrain arrived with WorldGridMaterial. The demo builder now
creates and assigns M_Asphalt / M_Concrete / M_Ground / M_RoadPaint.
- Crossing fix: each zebra band was its own object, so Blender renamed the
duplicates .001/.002 and site assembly (exact-name append) kept only one.
All bands are now a single Crossing_Markings mesh (36 verts, 3 bands).
- Terrain gets a Ground_Earth material in the builder so it stops importing
as a white grid.
- Demo cameras: street-level no longer sits inside the facade body (was
rendering its back face), and the crossing camera aims at the designated
s=130.1 crossing (UE X -14956) looking along the crosswalk.
Screenshots re-rendered; the four demo views are marked needs-review for the
owner's approval. MEMORY.md records the material-import, exposure,
light_color, band-naming and camera-bounds traps.
zwitschi
830ce596fa